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1.
J Psychosom Res ; : 111461, 2023 Aug 18.
Artigo em Inglês | MEDLINE | ID: mdl-37633798

RESUMO

Several hundred participants from all over the world, 36 sessions and workshops, 10 experts in the field of psychosomatics, and Nobel Prize Winner, Olga Tokarczuk, made the 10th European Association of Psychosomatic Medicine scientific conference held in Wroclaw, Poland in June 2023, a huge success.

2.
Gen Hosp Psychiatry ; 66: 9-15, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32592995

RESUMO

OBJECTIVE: To describe a new service model for the psychiatric care of general hospital inpatients, called Proactive Integrated Consultation-Liaison Psychiatry ('Proactive Integrated Psychological Medicine' in the UK). METHOD: The new service model was developed especially for general hospital inpatient populations with multimorbidity, such as older medical inpatients. Its design was informed by the published literature and the clinical experience of C-L psychiatrists. It was operationalized by a process of iterative piloting. RESULTS: The rationale for the new model and the principles underpinning it are outlined. Details of how to implement it, including a service manual and associated workbook, are provided. The training of clinicians to deliver it is described. The effectiveness and cost-effectiveness of this new service model is being evaluated. Whilst we have found it feasible to deliver and well-accepted by ward teams, potential challenges to its wider implementation are discussed. CONCLUSION: Proactive Integrated Consultation-Liaison Psychiatry (PICLP) is a fusion of proactive consultation and integrated care, operationalized in a field-tested service manual. Initial experience indicates that it is feasible to deliver. Its effectiveness and cost effectiveness for older patients on acute medical wards is currently being evaluated in a large multicentre randomized controlled trial (The HOME Study).


Assuntos
Prestação Integrada de Cuidados de Saúde/organização & administração , Hospitais Gerais/organização & administração , Pacientes Internados , Transtornos Mentais , Modelos Organizacionais , Psiquiatria/organização & administração , Encaminhamento e Consulta/organização & administração , Adulto , Estudos de Viabilidade , Humanos , Transtornos Mentais/diagnóstico , Transtornos Mentais/terapia , Multimorbidade , Reino Unido
3.
Front Psychiatry ; 9: 151, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-29867596

RESUMO

Background: Somatic Symptom Disorders (SSD), Bodily Distress Disorders (BDD) and functional disorders (FD) are associated with high medical and societal costs and pose a substantial challenge to the population and health policy of Europe. To meet this challenge, a specific research agenda is needed as one of the cornerstones of sustainable mental health research and health policy for SSD, BDD, and FD in Europe. Aim: To identify the main challenges and research priorities concerning SSD, BDD, and FD from a European perspective. Methods: Delphi study conducted from July 2016 until October 2017 in 3 rounds with 3 workshop meetings and 3 online surveys, involving 75 experts and 21 European countries. EURONET-SOMA and the European Association of Psychosomatic Medicine (EAPM) hosted the meetings. Results: Eight research priorities were identified: (1) Assessment of diagnostic profiles relevant to course and treatment outcome. (2) Development and evaluation of new, effective interventions. (3) Validation studies on questionnaires or semi-structured interviews that assess chronic medical conditions in this context. (4) Research into patients preferences for diagnosis and treatment. (5) Development of new methodologic designs to identify and explore mediators and moderators of clinical course and treatment outcomes (6). Translational research exploring how psychological and somatic symptoms develop from somatic conditions and biological and behavioral pathogenic factors. (7) Development of new, effective interventions to personalize treatment. (8) Implementation studies of treatment interventions in different settings, such as primary care, occupational care, general hospital and specialty mental health settings. The general public and policymakers will benefit from the development of new, effective, personalized interventions for SSD, BDD, and FD, that will be enhanced by translational research, as well as from the outcomes of research into patient involvement, GP-patient communication, consultation-liaison models and implementation. Conclusion: Funding for this research agenda, targeting these challenges in coordinated research networks such as EURONET-SOMA and EAPM, and systematically allocating resources by policymakers to this critical area in mental and physical well-being is urgently needed to improve efficacy and impact for diagnosis and treatment of SSD, BDD, and FD across Europe.

6.
Cochrane Database Syst Rev ; (7): CD007030, 2015 Jul 02.
Artigo em Inglês | MEDLINE | ID: mdl-26133313

RESUMO

BACKGROUND: Post-stroke fatigue (PSF) is a common and distressing problem after stroke. The best ways to prevent or treat PSF are uncertain. Several different interventions can be argued to have a rational basis. OBJECTIVES: To determine whether, among people with stroke, any intervention reduces the proportion of people with fatigue, fatigue severity, or both; and to determine the effect of intervention on health-related quality of life, disability, dependency and death, and whether such intervention is cost effective. SEARCH METHODS: We searched the Cochrane Stroke Group Trials Register (last searched May 2014), Cochrane Central Register of Controlled Trials (The Cochrane Library, 2014, Issue 4), MEDLINE (1950 to May 2014), EMBASE (1980 to May 2014), CINAHL (1982 to May 2014), AMED (1985 to May 2014), PsycINFO (1967 to May 2014), Digital Dissertations (1861 to May 2014), British Nursing Index (1985 to May 2014), PEDro (searched May 2014) and PsycBITE (searched May 2014). We also searched four ongoing trials registries, scanned reference lists, performed citation tracking of included trials and contacted experts. SELECTION CRITERIA: Two review authors independently scrutinised all titles and abstracts and excluded obviously irrelevant studies. We obtained the full texts for potentially relevant studies and three review authors independently applied the inclusion criteria. We included randomised controlled trials (RCTs) that compared an intervention with a control, or compared different interventions for PSF. DATA COLLECTION AND ANALYSIS: Two review authors independently extracted data and assessed risk of bias for each included trial. The primary outcomes were severity of fatigue, or proportion of people with fatigue after treatment. We performed separate analyses for trials investigating efficacy in treating PSF, trials investigating efficacy in preventing PSF and trials not primarily investigating efficacy in PSF but which reported fatigue as an outcome. We pooled results from trials that had a control arm. For trials that compared different potentially active interventions without a control arm, we performed analyses for individual trials without pooling.We calculated standardised mean difference (SMD) as the effect size for continuous outcomes and risk ratio (RR) for dichotomous outcomes. We pooled the results using a random-effects model and assessed heterogeneity using the I(2) statistic. We performed separate subgroup analyses for pharmacological and non-pharmacological interventions. We also performed sensitivity analyses to assess the influence of methodological quality. MAIN RESULTS: We retrieved 12,490 citations, obtained full texts for 58 studies and included 12 trials (three from the 2008 search and nine from the 2014 search) with 703 participants. Eight trials primarily investigated the efficacy in treating PSF, of which six trials with seven comparisons provided data suitable for meta-analysis (five pharmacological interventions: fluoxetine, enerion, (-)-OSU6162, citicoline and a combination of Chinese herbs; and two non-pharmacological interventions: a fatigue education programme and a mindfulness-based stress reduction programme). The fatigue severity was lower in the intervention groups than in the control groups (244 participants, pooled SMD -1.07, 95% confidence interval (CI) -1.93 to -0.21), with significant heterogeneity between trials (I(2) = 87%, degrees of freedom (df) = 6, P value < 0.00001). The beneficial effect was not seen in trials that had used adequate allocation concealment (two trials, 89 participants, SMD -0.38, 95% CI -0.80 to 0.04) or trials that had used adequate blinding of outcome assessors (four trials, 198 participants, SMD -1.10, 95% CI -2.31 to 0.11).No trial primarily investigated the efficacy in preventing PSF.Four trials (248 participants) did not primarily investigate the efficacy on fatigue but other symptoms after stroke. None of these interventions showed any benefit on reducing PSF, which included tirilazad mesylate, continuous positive airway pressure for sleep apnoea, antidepressants and a self management programme for recovery from chronic diseases. AUTHORS' CONCLUSIONS: There was insufficient evidence on the efficacy of any intervention to treat or prevent fatigue after stroke. Trials to date have been small and heterogeneous, and some have had a high risk of bias. Some of the interventions described were feasible in people with stroke, but their efficacy should be investigated in RCTs with a more robust study design and adequate sample sizes.


Assuntos
Fadiga/terapia , Acidente Vascular Cerebral/complicações , Antidepressivos/uso terapêutico , Medicamentos de Ervas Chinesas/uso terapêutico , Fadiga/etiologia , Feminino , Humanos , Masculino , Atenção Plena/métodos , Ensaios Clínicos Controlados Aleatórios como Assunto , Estresse Psicológico/prevenção & controle , Acidente Vascular Cerebral/psicologia
7.
Gen Hosp Psychiatry ; 37(6): 522-7, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-26190822

RESUMO

OBJECTIVE: Collaborative care is a systematic, team-based approach to the management of depression and other psychiatric disorders in medical settings. Collaborative care has been found to be effective and cost-effective, but there is little information to guide its implementation in clinical care. The objective of this article is to provide a practical guide to the implementation of collaborative care programs in real-world settings. METHODS: Based on our experience delivering collaborative care programs, we provide (a) specific, stepwise recommendations for the successful implementation of collaborative care in outpatient settings and (b) an examination of the additional benefits and challenges of collaborative care programs that begin during hospitalization. RESULTS: The implementation of collaborative care requires senior buy-in, an effective team, clear treatment components, engaged clinicians, procedures to ensure quality and adequate infrastructure. Beginning these programs with hospitalized patients may offer additional advantages but also requires additional flexibility to adapt to the inpatient setting. CONCLUSION: A systematic approach to the development and implementation of collaborative care programs may allow clinicians to effectively and efficiently treat psychiatric illness in medical populations in both inpatient and outpatient settings.


Assuntos
Comportamento Cooperativo , Instalações de Saúde , Transtornos Mentais/terapia , Desenvolvimento de Programas/métodos , Guias como Assunto , Humanos , Medicina Psicossomática
8.
Psychosomatics ; 56(5): 445-59, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-26032045

RESUMO

BACKGROUND: The amount of literature published annually related to psychosomatic medicine is vast; this poses a challenge for practitioners to keep up-to-date in all but a small area of expertise. OBJECTIVES: To introduce how a group process using volunteer experts can be harnessed to provide clinicians with a manageable selection of important publications in psychosomatic medicine, organized by specialty area, for 2014. METHODS: We used quarterly annotated abstracts selected by experts from the Academy of Psychosomatic Medicine and the European Association of Psychosomatic Medicine in 15 subspecialties to create a list of important articles. RESULTS: In 2014, subspecialty experts selected 88 articles of interest for practitioners of psychosomatic medicine. For this review, 14 articles were chosen. CONCLUSIONS: A group process can be used to whittle down the vast literature in psychosomatic medicine and compile a list of important articles for individual practitioners. Such an approach is consistent with the idea of physicians as lifelong learners and educators.


Assuntos
Bases de Dados Bibliográficas , Medicina Psicossomática/tendências , Publicações , Processos Grupais , Humanos
9.
Lancet Oncol ; 15(10): 1168-76, 2014 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-25175097

RESUMO

BACKGROUND: The management of depression in patients with poor prognosis cancers, such as lung cancer, creates specific challenges. We aimed to assess the efficacy of an integrated treatment programme for major depression in patients with lung cancer compared with usual care. METHODS: Symptom Management Research Trials (SMaRT) Oncology-3 is a parallel-group, multicentre, randomised controlled trial. We enrolled patients with lung cancer and major depression from three cancer centres and their associated clinics in Scotland, UK. Participants were randomly assigned in a 1:1 ratio to the depression care for people with lung cancer treatment programme or usual care by a database software algorithm that used stratification (by trial centre) and minimisation (by age, sex, and cancer type) with allocation concealment. Depression care for people with lung cancer is a manualised, multicomponent collaborative care treatment that is systematically delivered by a team of cancer nurses and psychiatrists in collaboration with primary care physicians. Usual care is provided by primary care physicians. The primary outcome was depression severity (on the Symptom Checklist Depression Scale [SCL-20], range 0-4) averaged over the patient's time in the trial (up to a maximum of 32 weeks). Trial statisticians and data collection staff were masked to treatment allocation, but patients and clinicians could not be masked to the allocations. Analyses were by intention to treat. This trial is registered with Current Controlled Trials, number ISRCTN75905964. FINDINGS: 142 participants were recruited between Jan 5, 2009, and Sept 9, 2011; 68 were randomly allocated to depression care for people with lung cancer and 74 to usual care. 43 (30%) of 142 patients had died by 32 weeks, all of which were cancer-related deaths. No intervention-related serious adverse events occurred. 131 (92%) of 142 patients provided outcome data (59 in the depression care for people with lung cancer group and 72 in the usual care group) and were included in the intention-to-treat primary analysis. Average depression severity was significantly lower in patients allocated to depression care for people with lung cancer (mean score on the SCL-20 1·24 [SD 0·64]) than in those allocated to usual care (mean score 1·61 [SD 0·58]); difference -0·38 (95% CI -0·58 to -0·18); standardised mean difference -0·62 (95% CI -0·94 to -0·29). Self-rated depression improvement, anxiety, quality of life, role functioning, perceived quality of care, and proportion of patients achieving a 12-week treatment response were also significantly better in the depression care for people with lung cancer group than in the usual care group. INTERPRETATION: Our findings suggest that major depression can be treated effectively in patients with a poor prognosis cancer; integrated depression care for people with lung cancer was substantially more efficacious than was usual care. Larger trials are now needed to estimate the effectiveness and cost-effectiveness of this care programme in this patient population, and further adaptation of the treatment will be necessary to address the unmet needs of patients with major depression and even shorter life expectancy. FUNDING: Cancer Research UK and Chief Scientist Office of the Scottish Government.


Assuntos
Prestação Integrada de Cuidados de Saúde , Transtorno Depressivo Maior/epidemiologia , Transtorno Depressivo Maior/terapia , Neoplasias Pulmonares/epidemiologia , Neoplasias Pulmonares/psicologia , Equipe de Assistência ao Paciente/organização & administração , Fatores Etários , Idoso , Idoso de 80 Anos ou mais , Antidepressivos/uso terapêutico , Comorbidade , Transtorno Depressivo Maior/diagnóstico , Feminino , Humanos , Neoplasias Pulmonares/patologia , Neoplasias Pulmonares/terapia , Masculino , Pessoa de Meia-Idade , Satisfação do Paciente/estatística & dados numéricos , Prognóstico , Psicoterapia/métodos , Medição de Risco , Fatores Sexuais , Análise de Sobrevida , Taxa de Sobrevida , Fatores de Tempo , Resultado do Tratamento , Reino Unido
10.
Lancet ; 384(9948): 1099-108, 2014 Sep 20.
Artigo em Inglês | MEDLINE | ID: mdl-25175478

RESUMO

BACKGROUND: Medical conditions are often complicated by major depression, with consequent additional impairment of quality of life. We aimed to compare the effectiveness of an integrated treatment programme for major depression in patients with cancer (depression care for people with cancer) with usual care. METHODS: SMaRT Oncology-2 is a parallel-group, multicentre, randomised controlled effectiveness trial. We enrolled outpatients with major depression from three cancer centres and their associated clinics in Scotland, UK. Participants were randomly assigned in a 1:1 ratio to the depression care for people with cancer intervention or usual care, with stratification (by trial centre) and minimisation (by age, primary cancer, and sex) with allocation concealment. Depression care for people with cancer is a manualised, multicomponent collaborative care treatment that is delivered systematically by a team of cancer nurses and psychiatrists in collaboration with primary care physicians. Usual care is provided by primary care physicians. Outcome data were collected up until 48 weeks. The primary outcome was treatment response (≥50% reduction in Symptom Checklist Depression Scale [SCL-20] score, range 0-4) at 24 weeks. Trial statisticians and data collection staff were masked to treatment allocation, but participants could not be masked to the allocations. Analyses were by intention to treat. This trial is registered with Current Controlled Trials, number ISRCTN40568538. FINDINGS: 500 participants were enrolled between May 12, 2008, and May 13, 2011; 253 were randomly allocated to depression care for people with cancer and 247 to usual care. 143 (62%) of 231 participants in the depression care for people with cancer group and 40 (17%) of 231 in the usual care group responded to treatment: absolute difference 45% (95% CI 37-53), adjusted odds ratio 8·5 (95% CI 5·5-13·4), p<0·0001. Compared with patients in the usual care group, participants allocated to the depression care for people with cancer programme also had less depression, anxiety, pain, and fatigue; and better functioning, health, quality of life, and perceived quality of depression care at all timepoints (all p<0·05). During the study, 34 cancer-related deaths occurred (19 in the depression care for people with cancer group, 15 in the usual care group), one patient in the depression care for people with cancer group was admitted to a psychiatric ward, and one patient in this group attempted suicide. None of these events were judged to be related to the trial treatments or procedures. INTERPRETATION: Our findings suggest that depression care for people with cancer is an effective treatment for major depression in patients with cancer. It offers a model for the treatment of depression comorbid with other medical conditions. FUNDING: Cancer Research UK and Chief Scientist Office of the Scottish Government.


Assuntos
Transtorno Depressivo Maior/psicologia , Transtorno Depressivo Maior/terapia , Neoplasias/psicologia , Adulto , Idoso , Idoso de 80 Anos ou mais , Análise de Variância , Antidepressivos/uso terapêutico , Prestação Integrada de Cuidados de Saúde , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Terapia Neoadjuvante , Neoplasias/terapia , Aceitação pelo Paciente de Cuidados de Saúde/estatística & dados numéricos , Equipe de Assistência ao Paciente , Psicoterapia/estatística & dados numéricos , Resultado do Tratamento , Adulto Jovem
11.
Psychosomatics ; 55(2): 109-22, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-24370112

RESUMO

BACKGROUND: Collaborative care interventions for psychiatric disorders combine several components integrated into the medical setting: (1) systematic psychiatric assessment, (2) use of a nonphysician care manager to perform longitudinal symptom monitoring, treatment interventions, and care coordination, and (3) specialist-provided stepped-care recommendations. Collaborative care interventions have now been evaluated in a wide spectrum of care settings and offer great promise as a way of increasing quality of patient care, improving health of populations, and reducing health care costs. METHODS: A systematic search of PubMed/MEDLINE databases was performed for publications between January 1970 and May 2013 to identify articles describing collaborative care and related interventions. Identified articles were then evaluated independently by multiple reviewers for quality and importance; additional articles were identified by searching reference lists and through recommendations of senior content-matter experts. The articles considered to be both of high quality and most important were then placed into categories and annotated reviews performed. RESULTS: Over 600 articles were identified of which 67 were selected for annotated review. The results reported in these articles indicate that collaborative care interventions for psychiatric disorders have been consistently successful in improving key outcomes in both research and clinical intervention studies; cost analyses also suggest that this model is cost effective. CONCLUSIONS: Collaborative care models for psychiatric disorders are likely to serve an increasingly large role in health care given their effect on patient and population outcomes and their focus on integration of care.


Assuntos
Comportamento Cooperativo , Transtornos Mentais/terapia , Equipe de Assistência ao Paciente , Medicina Psicossomática/métodos , Academias e Institutos , Humanos
12.
Int Rev Psychiatry ; 26(6): 657-68, 2014 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-25553783

RESUMO

Major depression is an important complication of cancer. However, it is frequently inadequately treated. There are challenges both in identifying which cancer patients are depressed, and in ensuring that these patients receive effective treatment for their depression. Integration of depression management into cancer care has been advocated as a way to address these challenges. Such integrated approaches must include both the systematic identification of cases and the delivery of treatment. We describe here a system of depression care that includes both a screening programme to identify patients with depression and a linked treatment programme, based on the collaborative care model, called 'Depression Care for People with Cancer' (DCPC). The system of care was designed to be fully integrated with specialist cancer services and has been robustly evaluated in randomized trials. We describe how the system operates and explain why it is designed as it is. We also summarize the evidence for its effectiveness and cost-effectiveness and discuss its implementation in routine clinical practice.


Assuntos
Prestação Integrada de Cuidados de Saúde/métodos , Transtorno Depressivo Maior/terapia , Gerenciamento Clínico , Neoplasias/psicologia , Comorbidade , Transtorno Depressivo Maior/epidemiologia , Humanos , Neoplasias/epidemiologia
13.
J Psychosom Res ; 75(3): 223-8, 2013 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-23972410

RESUMO

This paper describes the rationale for the new diagnosis of somatic symptom disorder (SSD) within DSM5. SSD represents a consolidation of a number of previously listed diagnoses. It deemphasizes the centrality of medically unexplained symptoms and defines the disorder on the basis of persistent somatic symptoms associated with disproportionate thoughts, feelings, and behaviors related to these symptoms. Data are presented concerning reliability, validity, and prevalence of SSD, as well as tasks for future research, education, and clinical practice.


Assuntos
Transtornos Somatoformes/diagnóstico , Manual Diagnóstico e Estatístico de Transtornos Mentais , Humanos , Reprodutibilidade dos Testes , Transtornos Somatoformes/classificação
14.
J Clin Oncol ; 30(11): 1178-86, 2012 Apr 10.
Artigo em Inglês | MEDLINE | ID: mdl-22412139

RESUMO

Despite substantial evidence that patients with cancer commonly have significant psychosocial problems, for which we have evidence-based treatments, many patients still do not receive adequate psychosocial care. This means that we risk prolonging life without adequately addressing the quality of that life. There are many challenges to improving the current situation, the major one of which is organizational. Many cancer centers lack a system of psychosocial care that is integrated with the cancer care of the patient. Psychosocial care encompasses a range of problems (emotional, social, palliative, and logistical). The integration must occur with the cancer care of the patient at all stages (from screening to palliative care) and across all clinical sites of care (inpatient and outpatient cancer services as well as primary care). In this article, we consider the challenges we face if we are to provide such integrated psychosocial services. We focus on the collaborative care service model. This model comprises systematic identification of need, integrated delivery of care by care managers, appropriate specialist supervision, and the stepping of care based on systematic measurement of outcomes. Several trials of this approach to the management of depression in patients with cancer have found it to be both feasible to deliver and effective. It provides a model for services to meet other psychosocial needs. We conclude by proposing the key components of an integrated psychosocial service that could be implemented now and by considering what we need to do next if we are to succeed in providing better and more comprehensive care to our patients.


Assuntos
Prestação Integrada de Cuidados de Saúde , Neoplasias/psicologia , Neoplasias/terapia , Comportamento Cooperativo , Transtorno Depressivo/diagnóstico , Transtorno Depressivo/terapia , Humanos , Avaliação das Necessidades
15.
Med Phys ; 36(11): 5261-91, 2009 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-19994536

RESUMO

The concept of in-air output ratio (Sc) was introduced to characterize how the incident photon fluence per monitor unit (or unit time for a Co-60 unit) varies with collimator settings. However, there has been much confusion regarding the measurement technique to be used that has prevented the accurate and consistent determination of Sc. The main thrust of the report is to devise a theoretical and measurement formalism that ensures interinstitutional consistency of Sc. The in-air output ratio, Sc, is defined as the ratio of primary collision water kerma in free-space, Kp, per monitor unit between an arbitrary collimator setting and the reference collimator setting at the same location. Miniphantoms with sufficient lateral and longitudinal thicknesses to eliminate electron contamination and maintain transient electron equilibrium are recommended for the measurement of Sc. The authors present a correction formalism to extrapolate the correct Sc from the measured values using high-Z miniphantom. Miniphantoms made of high-Z material are used to measure Sc for small fields (e.g., IMRT or stereotactic radiosurgery). This report presents a review of the components of Sc, including headscatter, source-obscuring, and monitor-backscattering effects. A review of calculation methods (Monte Carlo and empirical) used to calculate Sc for arbitrary shaped fields is presented. The authors discussed the use of Sc in photon dose calculation algorithms, in particular, monitor unit calculation. Finally, a summary of Sc data (from RPC and other institutions) is included for QA purposes.


Assuntos
Ar , Fótons/uso terapêutico , Radioterapia/métodos , Absorção , Algoritmos , Modelos Teóricos , Método de Monte Carlo , Imagens de Fantasmas , Controle de Qualidade , Radioterapia/instrumentação , Radioterapia/normas , Planejamento da Radioterapia Assistida por Computador/métodos , Radioterapia de Intensidade Modulada/instrumentação , Radioterapia de Intensidade Modulada/métodos , Radioterapia de Intensidade Modulada/normas , Padrões de Referência , Espalhamento de Radiação , Água
16.
Int J Radiat Oncol Biol Phys ; 67(4): 1229-37, 2007 Mar 15.
Artigo em Inglês | MEDLINE | ID: mdl-17336223

RESUMO

PURPOSE: To assess the feasibility of an online strategy for palliative radiotherapy (RT) of spinal bone metastasis, which integrates imaging, planning, and treatment delivery in a single step at the treatment unit. The technical challenges of this approach include cone-beam CT (CBCT) image quality for target definition, online planning, and efficient process integration. METHODS AND MATERIALS: An integrated imaging, planning, and delivery system was constructed and tested with phantoms. The magnitude of CBCT image artifacts following the use of an antiscatter grid and a nonlinear scatter correction was quantified using phantom data and images of patients receiving conventional palliative RT of the spine. The efficacy of online planning was then assessed using corrected CBCT images. Testing of the complete process was performed on phantoms with assessment of timing and dosimetric accuracy. RESULTS: The use of image corrections reduced the cupping artifact from 30% to 4.5% on CBCT images of a body phantom and improved the accuracy of CBCT numbers (water: +/- 20 Hounsfield unit [HU], and lung and bone: to within +/- 130 HU). Bony anatomy was clearly visible and was deemed sufficient for target definition. The mean total time (n = 5) for application of the online approach was 23.1 min. Image-guided dose placement was assessed using radiochromic film measurements with good agreement (within 5% of dose difference and 2 mm of distance to agreement). CONCLUSIONS: The technical feasibility of CBCT-guided online planning and delivery for palliative single treatment has been demonstrated. The process was performed in one session equivalent to an initial treatment slot (<30 min) with dosimetric accuracy satisfying accepted RT standards.


Assuntos
Planejamento da Radioterapia Assistida por Computador/métodos , Radioterapia Assistida por Computador/métodos , Neoplasias da Coluna Vertebral/radioterapia , Artefatos , Calibragem , Desenho de Equipamento , Estudos de Viabilidade , Humanos , Imagens de Fantasmas , Dosagem Radioterapêutica , Radioterapia Assistida por Computador/instrumentação , Neoplasias da Coluna Vertebral/secundário , Tecnologia Radiológica/instrumentação
18.
Psychosomatics ; 45(4): 287-90, 2004.
Artigo em Inglês | MEDLINE | ID: mdl-15232041

RESUMO

In this study, the authors describe the meaning of the word "psychosomatic" in U.S. and U.K. newspaper articles using a systematic text word search and a consensus rating of the contextual meaning of all articles published in 14 U.S. and U.K. newspapers between 1996 and 2002. The survey was limited to broadsheet newspapers. "Psychosomatic" had a pejorative meaning, such as "imaginary" or "made up," in 74 of 215 (34%) of the articles in which the meaning could be judged. Most commonly, "psychosomatic" was used to describe a problem that was psychological or in which the mind affects the body (56%) rather than as a reciprocal interaction (5%). "Psychosomatic medicine" is the new name for the seventh subspecialty of psychiatry. More needs to be done to educate the media about its actual meaning to make it attractive to patients.


Assuntos
Associação , Jornais como Assunto , Transtornos Psicofisiológicos , Humanos , Transtornos Psicofisiológicos/psicologia , Medicina Psicossomática , Terminologia como Assunto , Reino Unido , Estados Unidos
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