Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 30
Filtrar
Mais filtros

Base de dados
Tipo de documento
Intervalo de ano de publicação
2.
Magn Reson Med ; 77(1): 23-33, 2017 01.
Artigo em Inglês | MEDLINE | ID: mdl-26715192

RESUMO

PURPOSE: To introduce a new toolkit for simulation and processing of magnetic resonance spectroscopy (MRS) data, and to demonstrate some of its novel features. METHODS: The FID appliance (FID-A) is an open-source, MATLAB-based software toolkit for simulation and processing of MRS data. The software is designed specifically for processing data with multiple dimensions (eg, multiple radiofrequency channels, averages, spectral editing dimensions). It is equipped with functions for importing data in the formats of most major MRI vendors (eg, Siemens, Philips, GE, Agilent) and for exporting data into the formats of several common processing software packages (eg, LCModel, jMRUI, Tarquin). This paper introduces the FID-A software toolkit and uses examples to demonstrate its novel features, namely 1) the use of a spectral registration algorithm to carry out useful processing routines automatically, 2) automatic detection and removal of motion-corrupted scans, and 3) the ability to perform several major aspects of the MRS computational workflow from a single piece of software. This latter feature is illustrated through both high-level processing of in vivo GABA-edited MEGA-PRESS MRS data, as well as detailed quantum mechanical simulations to generate an accurate LCModel basis set for analysis of the same data. RESULTS: All of the described processing steps resulted in a marked improvement in spectral quality compared with unprocessed data. Fitting of MEGA-PRESS data using a customized basis set resulted in improved fitting accuracy compared with a generic MEGA-PRESS basis set. CONCLUSIONS: The FID-A software toolkit enables high-level processing of MRS data and accurate simulation of in vivo MRS experiments. Magn Reson Med 77:23-33, 2017. © 2015 Wiley Periodicals, Inc.


Assuntos
Processamento de Imagem Assistida por Computador/métodos , Espectroscopia de Ressonância Magnética/métodos , Processamento de Sinais Assistido por Computador , Software , Adulto , Algoritmos , Simulação por Computador , Feminino , Humanos , Imageamento por Ressonância Magnética , Masculino , Adulto Jovem
3.
Magn Reson Med ; 76(1): 145-55, 2016 07.
Artigo em Inglês | MEDLINE | ID: mdl-26302238

RESUMO

PURPOSE: Proton resonance frequency thermometry is well established for monitoring small temperature changes in tissue. Application of the technique to the measurement of complex temperature distributions within fluid flow is of great interest to the engineering community and could also have medical applications. This work presents an experimental approach to reliably measure three-dimensional (3D) temperature fields in fluid flow using proton resonance frequency thermometry. METHODS: A velocity-compensated three-dimensional gradient echo sequence was used. A flexible pumping system was attached to an MR compatible double pipe heat exchanger. The temperature of two separate flow circuits could be adjusted to produce various three-dimensional spatial temperature distributions within the fluid flow. Validation was performed using MR compatible temperature probes in a uniformly heated flow. A comparative study was conducted with thermocouples in the presence of a spatially varying temperature distribution. RESULTS: In uniformly heated flow, temperature changes were accurately measured to within 0.5 K using proton resonance frequency thermometry, while spatially varying temperature changes measured with MR showed good qualitative agreement with pointwise measurements using thermocouples. CONCLUSION: Proton resonance frequency thermometry can be used in a variety of complex flow situations to address medical as well as engineering questions. This work makes it possible to gain new insights into fundamental heat transfer phenomena. Magn Reson Med 76:145-155, 2016. © 2015 Wiley Periodicals, Inc.


Assuntos
Algoritmos , Interpretação de Imagem Assistida por Computador/métodos , Imageamento Tridimensional/métodos , Angiografia por Ressonância Magnética/métodos , Espectroscopia de Prótons por Ressonância Magnética/métodos , Termografia/instrumentação , Desenho de Equipamento , Interpretação de Imagem Assistida por Computador/instrumentação , Imageamento Tridimensional/instrumentação , Angiografia por Ressonância Magnética/instrumentação , Imagens de Fantasmas , Espectroscopia de Prótons por Ressonância Magnética/instrumentação , Reprodutibilidade dos Testes , Sensibilidade e Especificidade , Temperatura , Termografia/métodos
4.
J Cardiovasc Magn Reson ; 18(1): 93, 2016 Dec 09.
Artigo em Inglês | MEDLINE | ID: mdl-27964736

RESUMO

BACKGROUND: Wave intensity analysis (WIA) of the coronary arteries allows description of the predominant mechanisms influencing coronary flow over the cardiac cycle. The data are traditionally derived from pressure and velocity changes measured invasively in the coronary artery. Cardiovascular magnetic resonance (CMR) allows measurement of coronary velocities using phase velocity mapping and derivation of central aortic pressure from aortic distension. We assessed the feasibility of WIA of the coronary arteries using CMR and compared this to invasive data. METHODS: CMR scans were undertaken in a serial cohort of patients who had undergone invasive WIA. Velocity maps were acquired in the proximal left anterior descending and proximal right coronary artery using a retrospectively-gated breath-hold spiral phase velocity mapping sequence with high temporal resolution (19 ms). A breath-hold segmented gradient echo sequence was used to acquire through-plane cross sectional area changes in the proximal ascending aorta which were used as a surrogate of an aortic pressure waveform after calibration with brachial blood pressure measured with a sphygmomanometer. CMR-derived aortic pressures and CMR-measured velocities were used to derive wave intensity. The CMR-derived wave intensities were compared to invasive data in 12 coronary arteries (8 left, 4 right). Waves were presented as absolute values and as a % of total wave intensity. Intra-study reproducibility of invasive and non-invasive WIA was assessed using Bland-Altman analysis and the intraclass correlation coefficient (ICC). RESULTS: The combination of the CMR-derived pressure and velocity data produced the expected pattern of forward and backward compression and expansion waves. The intra-study reproducibility of the CMR derived wave intensities as a % of the total wave intensity (mean ± standard deviation of differences) was 0.0 ± 6.8%, ICC = 0.91. Intra-study reproducibility for the corresponding invasive data was 0.0 ± 4.4%, ICC = 0.96. The invasive and CMR studies showed reasonable correlation (r = 0.73) with a mean difference of 0.0 ± 11.5%. CONCLUSION: This proof of concept study demonstrated that CMR may be used to perform coronary WIA non-invasively with reasonable reproducibility compared to invasive WIA. The technique potentially allows WIA to be performed in a wider range of patients and pathologies than those who can be studied invasively.


Assuntos
Circulação Coronária , Vasos Coronários/diagnóstico por imagem , Cardiopatias/diagnóstico por imagem , Interpretação de Imagem Assistida por Computador/métodos , Imagem Cinética por Ressonância Magnética/métodos , Adulto , Aorta/diagnóstico por imagem , Aorta/fisiopatologia , Pressão Arterial , Velocidade do Fluxo Sanguíneo , Suspensão da Respiração , Calibragem , Vasos Coronários/fisiopatologia , Inglaterra , Estudos de Viabilidade , Feminino , Cardiopatias/fisiopatologia , Humanos , Imagem Cinética por Ressonância Magnética/normas , Masculino , Pessoa de Meia-Idade , Valor Preditivo dos Testes , Reprodutibilidade dos Testes
5.
J Cardiovasc Magn Reson ; 17(1): 8, 2015 Feb 04.
Artigo em Inglês | MEDLINE | ID: mdl-25648103

RESUMO

BACKGROUND: Qualitative and quantitative assessment of renal blood flow is valuable in the evaluation of patients with renal and renovascular diseases as well as in patients with heart failure. The temporal pattern of renal flow velocity through the cardiac cycle provides important information about renal haemodynamics. High temporal resolution interleaved spiral phase velocity mapping could potentially be used to study temporal patterns of flow and measure resistive and pulsatility indices which are measures of downstream resistance. METHODS: A retrospectively gated breath-hold spiral phase velocity mapping sequence (TR 19 ms) was developed at 3 Tesla. Phase velocity maps were acquired in the proximal right and left arteries of 10 healthy subjects in each of two separate scanning sessions. Each acquisition was analysed by two independent observers who calculated the resistive index (RI), the pulsatility index (PI), the mean flow velocity and the renal artery blood flow (RABF). Inter-study and inter-observer reproducibility of each variable was determined as the mean +/- standard deviation of the differences between paired values. The effect of background phase errors on each parameter was investigated. RESULTS: RI, PI, mean velocity and RABF per kidney were 0.71+/- 0.06, 1.47 +/- 0.29, 253.5 +/- 65.2 mm/s and 413 +/- 122 ml/min respectively. The inter-study reproducibilities were: RI -0.00 +/- 0.04 , PI -0.03 +/- 0.17, mean velocity -6.7 +/- 31.1 mm/s and RABF per kidney 17.9 +/- 44.8 ml/min. The effect of background phase errors was negligible (<2% for each parameter). CONCLUSIONS: High temporal resolution breath-hold spiral phase velocity mapping allows reproducible assessment of renal pulsatility indices and RABF.


Assuntos
Velocidade do Fluxo Sanguíneo/fisiologia , Angiografia por Ressonância Magnética , Artéria Renal/fisiologia , Circulação Renal/fisiologia , Adulto , Suspensão da Respiração , Feminino , Hemodinâmica/fisiologia , Humanos , Masculino , Fluxo Pulsátil/fisiologia , Reprodutibilidade dos Testes , Estudos Retrospectivos
6.
J Cardiovasc Magn Reson ; 17: 85, 2015 Oct 02.
Artigo em Inglês | MEDLINE | ID: mdl-26428627

RESUMO

BACKGROUND: Temporal patterns of coronary blood flow velocity can provide important information on disease state and are currently assessed invasively using a Doppler guidewire. A non-invasive alternative would be beneficial as it would allow study of a wider patient population and serial scanning. METHODS: A retrospectively-gated breath-hold spiral phase velocity mapping sequence (TR 19 ms) was developed at 3 Tesla. Velocity maps were acquired in 8 proximal right and 15 proximal left coronary arteries of 18 subjects who had previously had a Doppler guidewire study at the time of coronary angiography. Cardiovascular magnetic resonance (CMR) velocity-time curves were processed semi-automatically and compared with corresponding invasive Doppler data. RESULTS: When corrected for differences in heart rate between the two studies, CMR mean velocity through the cardiac cycle, peak systolic velocity (PSV) and peak diastolic velocity (PDV) were approximately 40 % of the peak Doppler values with a moderate - good linear relationship between the two techniques (R(2): 0.57, 0.64 and 0.79 respectively). CMR values of PDV/PSV showed a strong linear relationship with Doppler values with a slope close to unity (0.89 and 0.90 for right and left arteries respectively). In individual vessels, plots of CMR velocities at all cardiac phases against corresponding Doppler velocities showed a consistent linear relationship between the two with high R(2) values (mean +/-SD: 0.79 +/-.13). CONCLUSIONS: High temporal resolution breath-hold spiral phase velocity mapping underestimates absolute values of coronary flow velocity but allows accurate assessment of the temporal patterns of blood flow.


Assuntos
Doença da Artéria Coronariana/diagnóstico , Circulação Coronária , Vasos Coronários/fisiopatologia , Ecocardiografia Doppler/métodos , Imageamento por Ressonância Magnética/métodos , Imagem de Perfusão do Miocárdio/métodos , Adulto , Idoso , Automação , Velocidade do Fluxo Sanguíneo , Suspensão da Respiração , Cateteres Cardíacos , Técnicas de Imagem de Sincronização Cardíaca , Doença da Artéria Coronariana/diagnóstico por imagem , Doença da Artéria Coronariana/fisiopatologia , Ecocardiografia Doppler/instrumentação , Eletrocardiografia , Feminino , Frequência Cardíaca , Humanos , Modelos Lineares , Masculino , Pessoa de Meia-Idade , Imagem de Perfusão do Miocárdio/instrumentação , Valor Preditivo dos Testes , Fluxo Sanguíneo Regional , Reprodutibilidade dos Testes , Fatores de Tempo
7.
J R Army Med Corps ; 161(2): 106-8, 2015 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-25212476

RESUMO

OBJECTIVES: To assess the knowledge of members of the Royal College of General Practitioners (RCGP) on veteran's health issues, assess present support, and establish what support is required for GPs when treating veterans. METHODS: An electronic survey of RCGP members across selected faculties. RESULTS: Forty-seven per cent of respondents were 'unsure' or 'didn't know' how many veterans they were responsible for. However, many GPs replied that they had seen a veteran in the last month. Only 7.9% of respondents used the unique Read Code for veterans. Disappointingly, 75% of GPs indicated that they had not seen the RCGP leaflet on veterans' health, and less than 2% had used the RCGP On-Line e-learning resource. CONCLUSIONS: Surveyed GPs had little understanding of how many veterans were registered with their practice, and only a few had accessed learning resources available. GPs requested more information on how to assess veterans and where they could be referred. Further work is required to identify the true size of the problem, while continuing to provide proactive guidance and support to GPs on the health needs of veterans.


Assuntos
Clínicos Gerais , Conhecimentos, Atitudes e Prática em Saúde , Necessidades e Demandas de Serviços de Saúde , Saúde dos Veteranos , Coleta de Dados , Humanos , Medicina Militar , Reino Unido
8.
Magn Reson Med ; 72(3): 659-68, 2014 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-24123135

RESUMO

PURPOSE: Tissue phase velocity mapping (TPVM) is capable of reproducibly measuring regional myocardial velocities. However acquisition durations of navigator gated techniques are long and unpredictable while current breath-hold techniques have low temporal resolution. This study presents a spiral TPVM technique which acquires high resolution data within a clinically acceptable breath-hold duration. METHODS: Ten healthy volunteers are scanned using a spiral sequence with temporal resolution of 24 ms and spatial resolution of 1.7 × 1.7 mm. Retrospective cardiac gating is used to acquire data over the entire cardiac cycle. The acquisition is accelerated by factors of 2 and 3 by use of non-Cartesian SENSE implemented on the Gadgetron GPU system resulting in breath-holds of 17 and 13 heartbeats, respectively. Systolic, early diastolic, and atrial systolic global and regional longitudinal, circumferential, and radial velocities are determined. RESULTS: Global and regional velocities agree well with those previously reported. The two acceleration factors show no significant differences for any quantitative parameter and the results also closely match previously acquired higher spatial resolution navigator-gated data in the same subjects. CONCLUSION: By using spiral trajectories and non-Cartesian SENSE high resolution, TPVM data can be acquired within a clinically acceptable breath-hold.


Assuntos
Técnicas de Imagem de Sincronização Cardíaca , Coração/fisiologia , Imagem Cinética por Ressonância Magnética/métodos , Adulto , Suspensão da Respiração , Feminino , Voluntários Saudáveis , Humanos , Processamento de Imagem Assistida por Computador/métodos , Masculino , Pessoa de Meia-Idade
9.
J R Army Med Corps ; 160(1): 4-8, 2014 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-24125800

RESUMO

In most conflicts there is the potential that there will be Captured Persons (CPERS) whose medical care is the responsibility of the capturing army. The standard of this care should be to the same standard as that afforded to one's own troops. However the medical practicalities of maintaining such standards can be difficult. This article reviews the practicalities of the medical care of CPERS as part of the UK deployment in Afghanistan on Operation HERRICK.


Assuntos
Medicina Militar/ética , Medicina Militar/legislação & jurisprudência , Militares/legislação & jurisprudência , Prisioneiros de Guerra/legislação & jurisprudência , Campanha Afegã de 2001- , Afeganistão , Atenção à Saúde/ética , Atenção à Saúde/legislação & jurisprudência , Humanos , Reino Unido , Nações Unidas
10.
J Magn Reson Imaging ; 37(3): 576-99, 2013 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-22826177

RESUMO

Regional myocardial function can be measured by several MR techniques including tissue tagging, phase velocity mapping, and more recently, displacement encoding with stimulated echoes (DENSE) and strain encoding (SENC). Each of these techniques was developed separately and has undergone significant change since its original implementation. As a result, in the current literature, the common features and the differences between the techniques and what they measure are often unclear and confusing. This review article delivers an extensively referenced introductory text which clarifies the current methodology from the starting point of the Bloch equations. By doing this in a consistent way for each method, the similarities and differences between them are highlighted. In addition, their capabilities and limitations are discussed, together with their relative advantages and disadvantages. While the focus is on sequence design and development, the principal parameters measured by each technique are also summarized, together with brief results, with the reader being directed to the extensive literature on data processing and clinical applications for more detail.


Assuntos
Imageamento por Ressonância Magnética/métodos , Miocárdio/patologia , Algoritmos , Análise de Fourier , Humanos , Processamento de Imagem Assistida por Computador/métodos , Imageamento Tridimensional , Movimento , Contração Miocárdica , Reprodutibilidade dos Testes
11.
J Cardiovasc Magn Reson ; 15: 34, 2013 Apr 15.
Artigo em Inglês | MEDLINE | ID: mdl-23587250

RESUMO

BACKGROUND: Three-directional phase velocity mapping (PVM) is capable of measuring longitudinal, radial and circumferential regional myocardial velocities. Current techniques use Cartesian k-space coverage and navigator-gated high spatial and high temporal resolution acquisitions are long. In addition, prospective ECG-gating means that analysis of the full cardiac cycle is not possible. The aim of this study is to develop a high temporal and high spatial resolution PVM technique using efficient spiral k-space coverage and retrospective ECG-gating. Detailed analysis of regional motion over the entire cardiac cycle, including atrial systole for the first time using MR, is presented in 10 healthy volunteers together with a comprehensive assessment of reproducibility. METHODS: A navigator-gated high temporal (21 ms) and spatial (1.4 × 1.4 mm) resolution spiral PVM sequence was developed, acquiring three-directional velocities in 53 heartbeats (100% respiratory-gating efficiency). Basal, mid and apical short-axis slices were acquired in 10 healthy volunteers on two occasions. Regional and transmural early systolic, early diastolic and atrial systolic peak longitudinal, radial and circumferential velocities were measured, together with the times to those peaks (TTPs). Reproducibilities were determined as mean ± SD of the signed differences between measurements made from acquisitions performed on the two days. RESULTS: All slices were acquired in all volunteers on both occasions with good image quality. The high temporal resolution allowed consistent detection of fine features of motion, while the high spatial resolution allowed the detection of statistically significant regional and transmural differences in motion. Colour plots showing the regional variations in velocity over the entire cardiac cycle enable rapid interpretation of the regional motion within any given slice. The reproducibility of peak velocities was high with the reproducibility of early systolic, early diastolic and atrial systolic peak radial velocities in the mid slice (for example) being -0.01 ± 0.36, 0.20 ± 0.56 and 0.14 ± 0.42 cm/s respectively. Reproducibility of the corresponding TTP values, when normalised to a fixed systolic and diastolic length, was also high (-13.8 ± 27.4, 1.3 ± 21.3 and 3.0 ± 10.9 ms for early systolic, early diastolic and atrial systolic respectively). CONCLUSIONS: Retrospectively gated spiral PVM is an efficient and reproducible method of acquiring 3-directional, high resolution velocity data throughout the entire cardiac cycle, including atrial systole.


Assuntos
Imagem Cinética por Ressonância Magnética , Contração Miocárdica , Algoritmos , Técnicas de Imagem de Sincronização Cardíaca , Diástole , Eletrocardiografia , Voluntários Saudáveis , Frequência Cardíaca , Humanos , Interpretação de Imagem Assistida por Computador , Variações Dependentes do Observador , Valor Preditivo dos Testes , Valores de Referência , Reprodutibilidade dos Testes , Sístole , Fatores de Tempo
12.
BMJ Mil Health ; 168(1): 88-90, 2022 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-33619231

RESUMO

About 5% of the UK population are military veterans and have specific medical needs sometimes different from the general population. Veterans may be reluctant to seek help or talk about their problems, which means they do not always access care, support and treatments that are available. Others may face difficulty getting the right help. Veterans may think 'civilians' do not understand military culture or know about options for help and services that are available. Experience has shown that general practitioners (GPs) would like more help and support when looking after veterans. The Royal College of General Practitioners has developed the 'Veteran Friendly GP Practice Accreditation Programme', which involves a simple online process of accreditation where practices are required to meet the specified criteria and provide evidence that they are supportive of veterans' healthcare. The aim is to improve healthcare provided to veterans and their families by GPs working in primary healthcare.


Assuntos
Clínicos Gerais , Militares , Veteranos , Humanos , Atenção Primária à Saúde , Reino Unido
13.
BJGP Open ; 6(3)2022 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-35387764

RESUMO

BACKGROUND: The Royal College of General Practitioners (RCGP) Veteran Friendly Practice Accreditation Programme launched in 2019, aiming to allow practices to better identify, treat, and refer veterans, where appropriate, to dedicated NHS services. AIM: To evaluate the effectiveness of the accreditation programme, focusing on benefits for the veteran, the practice, and the delivery of the programme itself. DESIGN & SETTING: The study evaluated the views of veteran-friendly accredited GP practices across England. METHOD: A mixed-methods study was undertaken, which collected data via an online survey from 232 accredited primary healthcare (PHC) staff and 15 semi-structured interviews with PHC veteran leads. Interviews were analysed using modified grounded theory. RESULTS: The study found 99% (n = 228) of responders would recommend the programme, 78% (n = 180) reported improved awareness, and 84% (n = 193) a better understanding of veterans' needs. Seventy-two per cent (n = 166) identified benefits for veterans who were engaging more with PHC but participants felt more time was needed, largely owing to the COVID-19 pandemic, to fully assess the impact of the programme on help-seeking behaviour. Challenges included identifying veterans already registered, promoting the accreditation process, and ensuring all PHC staff were kept up to date with veteran issues. CONCLUSION: The programme has increased signposting to veteran-specific services and resulted in greater understanding of the NHS priority referral criteria for veterans. Recording of veteran status has improved and there was evidence of a better medical record coding system in PHC practices. These findings add to the limited empirical evidence exploring veteran engagement in PHC, and demonstrate how accreditation results in better treatment and identification of veterans.

14.
NMR Biomed ; 24(10): 1277-85, 2011 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-21387450

RESUMO

One of the most commonly used methods for in vivo MRS detection of γ-aminobutyric acid (GABA) is the MEGA-point-resolved spectroscopy (MEGA-PRESS) technique. However, accurate quantification of GABA using MEGA-PRESS is complicated by spectral co-editing of macromolecular resonances. In this article, a new pulse sequence is presented which enables GABA editing at 3T with the removal of macromolecule contamination. This sequence combines the conventional MEGA editing scheme with the SPECIAL localisation technique, and is therefore named MEGA-SPECIAL. Simulations and phantom experiments indicate that this new approach provides improved GABA editing efficiency relative to MEGA-PRESS, and in vivo results demonstrate effective removal of macromolecule contamination. In a study of the occipital lobe of five healthy volunteers, the macromolecule-corrected GABA/creatine ratio was found to be 0.093 ± 0.007 (mean ± standard deviation), whereas prior to macromolecule correction, the ratio was found to be 0.173 ± 0.013.


Assuntos
Substâncias Macromoleculares/metabolismo , Ácido gama-Aminobutírico/metabolismo , Simulação por Computador , Creatina/metabolismo , Humanos , Espectroscopia de Ressonância Magnética/métodos , Imagens de Fantasmas
15.
Br J Nurs ; 20(19): 1256-61, 2011.
Artigo em Inglês | MEDLINE | ID: mdl-22067839

RESUMO

The mental health (MH) of soldiers remains extremely newsworthy and is regularly featured in high profile media forums that focus on post-traumatic stress disorder. However, the authors feel that there are distinct benefits to serving within the Army, and that it provides effective occupational medical, MH and welfare support. This research study explores potential benefits and stressors of being in the Army and provides an overview of Army mental health services (AMHS) through the perspectives of AMHS personnel, 84% of which were nurses. The study indicated that the Army can provide a protective community, sharing a bond based on common values and experiences. The Army can provide soldiers with career opportunities that are not available in civilian life, and there are opportunities to develop an employment profile, enhanced by internal and external educational training, and encapsulated within a progressive career pathway. The Army can also be seen to offer an escape route, preventing soldiers entering a life of crime, and supplying the stable family these soldiers had never experienced. The provision of leadership, within an environment where soldiers are valued and stigma is not tolerated can potentially shield against MH problems.


Assuntos
Transtornos Mentais , Serviços de Saúde Mental/organização & administração , Enfermagem Militar/organização & administração , Militares/psicologia , Estresse Psicológico , Acessibilidade aos Serviços de Saúde/organização & administração , Humanos , Transtornos Mentais/enfermagem , Transtornos Mentais/psicologia , Transtornos Mentais/terapia , Estresse Psicológico/enfermagem , Estresse Psicológico/psicologia , Estresse Psicológico/terapia , Reino Unido
16.
Br J Nurs ; 19(21): 1355-62, 2010.
Artigo em Inglês | MEDLINE | ID: mdl-21355361

RESUMO

Few studies have explored the predisposing factors leading to depression within the British Army, and this qualitative investigation provides a novel approach to advance knowledge in this poorly researched area. Information was provided by army mental health (MH) clinicians, with results aligned to theoretical groupings under the headings of: occupational stressors; macho culture, stigma and bullying; unhappy young soldier; relationships and gender. These issues were influenced by peacetime and operational settings; the support offered by the Army Medical Services and unit command. The results indicate that Army personnel are exposed to multi-factorial stressors that are incremental/accumulative in nature. Soldiers can cope with extreme pressures, often in hostile environments, but often cannot cope with a failing relationship. Officers were worried about the occupational implications of reporting ill, and the negative impact on their career, and might seek support from private civilian agencies, which have potentially dangerous ramifications as they may still deploy. GPs refer female soldiers more frequently for a mental health assessment because women express their emotions more openly then men. Young disillusioned soldiers who want to leave the Army form the main group of personnel accessing mental health support, although often they are not clinically depressed.


Assuntos
Adaptação Psicológica , Transtorno Depressivo/enfermagem , Transtorno Depressivo/psicologia , Enfermagem Militar , Militares/psicologia , Adulto , Feminino , Identidade de Gênero , Humanos , Masculino , Pessoa de Meia-Idade , Pesquisa Metodológica em Enfermagem , Reino Unido
17.
J Forensic Sci ; 65(5): 1730-1735, 2020 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-32569433

RESUMO

X-ray photoelectron spectroscopy (XPS) is a widely used technique to characterize the surface chemistry of materials. It plays a crucial role in accessing qualitative and quantitative information and in detecting the presence of chemical functional groups on the surface of any material. The forensic methods available to detect and identify elements and organic/inorganic compounds are often destructive, so evidence cannot be re-analyzed. However, XPS allows rapid analysis of samples without damaging them. Recently, an increasing number of forensic researchers have begun to study certain chemical information on fingermarks. In this study, the authors aimed to present the applicability and power of XPS imaging in fingermark analysis which can also provide specific information about the fingermark chemical composition. Herein, monochromated X-ray (Al Kα) spot size was fixed at 50 µm. XPS mapping resulted in the acquisition of spectra at each pixel, in an array of 41 × 30 pixels with a step size of 50 µm. Then, a simple discussion has been made about how the scanned surface spectrum and basic snapshot spectra are used to identify different components at a fingertip of a scanned surface area (~3 mm2 ). Hence, a fingermark pattern contaminated with caffeine, TiO2 , and Pb/PbO deposited on the silicon wafer can be chemically mapped and visualized by XPS using principal component analysis (PCA). Thus, the present study showed the possible applicability of XPS for the identification of illicit drugs of abuse, gunshot residue, and skin care products on latent fingermark by mimicking a crime scene evidence.

18.
Nurse Educ Pract ; 42: 102654, 2020 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-31733526

RESUMO

The aim of the project was to help prepare the future nursing workforce to provide optimum care for the Armed Forces Community. Structured evidenced-based educational sessions were designed and then delivered at two Universities in England. This educational model included a flipped approach, didactic classroom teaching, blended learning, and information technology. Educational sessions were provided to 468 first year Bachelor of Nursing undergraduate students in 2017 and 2018. A mixed methods evaluation included a quasi-experiential design with pre and post-test data followed by research interviews conducted by student nurses and analysed using a modified Grounded Theory. Post session evaluation demonstrated a significant improvement in students' knowledge. 93% agreed that the training was useful, 95% felt that nurses should be aware of the healthcare needs of the Armed Forces Community, and 89% indicated that the subject matter should be included in the undergraduate curriculum. A qualitative theoretical model was built from four major clusters: the military community; student's identity, clinical engagement, and future practice. These educational sessions are being introduced into a growing number of United Kingdom Universities to create future nursing leaders with a better insight into the large and diverse Armed Forces Community.


Assuntos
Bacharelado em Enfermagem/normas , Medicina Militar/educação , Cuidados de Enfermagem/normas , Estudantes de Enfermagem/psicologia , Adulto , Currículo , Bacharelado em Enfermagem/métodos , Bacharelado em Enfermagem/estatística & dados numéricos , Inglaterra , Feminino , Teoria Fundamentada , Humanos , Masculino , Pessoa de Meia-Idade , Família Militar/psicologia , Família Militar/estatística & dados numéricos , Medicina Militar/métodos , Cuidados de Enfermagem/métodos , Cuidados de Enfermagem/psicologia , Pesquisa Qualitativa , Estudantes de Enfermagem/estatística & dados numéricos , Veteranos/psicologia , Veteranos/estatística & dados numéricos
19.
Occup Med (Lond) ; 59(8): 528-38, 2009 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-19933500

RESUMO

BACKGROUND: The Armed Forces operate in a particularly arduous physical and psychological environment. The occupational health (OH) of all personnel is of paramount importance to sustain the service's fighting ability. AIMS: Firstly, to bring readers up to date with the current organization and delivery of OH to uniformed personnel in the Armed Forces. Secondly, to review the research that has led to an improvement in OH services and the ways in which the Armed Forces are responding to the various challenges. METHODS: A description of the type and delivery of OH to the Armed Forces is followed by a review of the relevant contemporaneous literature from both open publications and research dissertations. RESULTS: Although there are some similarities with civilian OH, the principal requirement to prepare and sustain service personnel for operations on land, sea and air adds considerable complexity to the task. Research undertaken by Armed Forces OH professionals has added to the evidence base and enabled attrition in all aspects of the Armed Forces to be reduced. CONCLUSIONS: To meet the challenges of the 21st century, Armed Forces OH practitioners must continue to provide the best evidence-based advice to enhance force preparation and sustainment. All consultations in the Armed Forces involve an OH consideration from the simplest consultations through to the input from specialist OH practitioners. While the assessment of fitness to work in home bases and on deployed operations remains the primary output of OH, the provision of support to command policy, procurement and research are also key to the ability to operate worldwide.


Assuntos
Militares , Saúde Ocupacional , Medicina do Trabalho/organização & administração , Medicina Aeroespacial/organização & administração , Prestação Integrada de Cuidados de Saúde/organização & administração , Humanos , Doenças Profissionais/reabilitação , Medicina do Trabalho/educação , Reino Unido
20.
Mil Med ; 183(11-12): e509-e517, 2018 11 01.
Artigo em Inglês | MEDLINE | ID: mdl-29746695

RESUMO

Introduction: In the UK, primary healthcare practices choose from a series of Read codes to detail certain characteristics onto a patient's medical documentation. One of these codes is for military veterans indicating a history relating to military service. However, veterans are poor at seeking help, with research indicating that this code is only applied in 7.9% of cases. Clinical staff have a clear role in motivating veterans to declare their ex-Forces status or register with a primary healthcare center. The aim of this study was to motivate veterans to notify primary healthcare staff of their armed forces status or register with a general practitioner, and to improve primary healthcare staff's understanding of veterans' health and social care issues. Materials and Methods: Data were provided by four primary healthcare centers' containing 40,470 patients in Lancashire, England during 2017. Pre- and post-patient medical record Read Code searches were conducted either side of a 6-wk intervention period centered on an advertising campaign. The data identified those veterans with the military specific Read code attached to their medical record and their age, gender, marital status and mental health disorders. Further information was gathered from interviews with eight members of staff, some of whom had completed an e-learning veteran healthcare academic module. The study was approved by the University of Chester's Research Ethics Committee. Results: The pre-intervention search indicated that 8.7% (N = 180) of veterans were registered and had the correct military specific code applied to their medical record. Post-intervention, this figure increased by nearly 200% to N = 537. Mental health disorders were present in 28% (N = 152) of cases, including 15% (N = 78) with depression. Interviews revealed the primary healthcare staff's interpretation of the factors that motivated patients to declare their ex-Forces status and the key areas for development. Conclusion: The primary healthcare staff took ownership and responsibility for this initiative. They were creative in introducing new ways of engaging with the local armed forces community. Many veterans' and staff were unaware of veterans' entitlement to priority medical services, or the wider provisions available to them. It is probable that veterans declaring their military status within primary healthcare, or registering with a general practitioner for the first time is likely to increase. Another review will be undertaken after 12 mo, which will provide a better indication of success. There remains however an ongoing need to reach out to those veterans who never access a primary healthcare practice. This paper adds to the limited international empirical evidence undertaken to explore help-seeking behavior in an armed forces community. The positive outcomes of increased awareness and staff commitment provide a template for improvement across the UK, and will potentially stimulate similar initiatives with international colleagues.


Assuntos
Comportamento de Busca de Ajuda , Seleção de Pacientes , Atenção Primária à Saúde/métodos , Veteranos/psicologia , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Motivação , Atenção Primária à Saúde/estatística & dados numéricos , Reino Unido , Veteranos/estatística & dados numéricos
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA