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1.
Artículo en Inglés | MEDLINE | ID: mdl-37995294

RESUMEN

OBJECTIVES: Digital annular pulleys (DAP) are important anatomical structures for finger function. The anatomy, histology, and imaging assessment of DAP, particularly at the level of their entheses is still not clearly defined. The advent of high-frequency ultrasound (US) transducers opened new perspectives in evaluating sub-millimeter scale structures, such as pulleys, paving the way for their global assessment. The study aimed at characterizing DAP from an anatomical, histological, and US perspective, focusing on the detection and complete description of pulley entheses. METHODS: US assessment and gross anatomy dissection were conducted on 20 cadaveric hands to study DAP thickness and structure including enthesis identification. The results of the US and anatomical measurements were correlated. DAP entheses identified by US were characterized via histological analysis. DAP in 20 healthy controls (HC) were detected and measured by US. The A1, A2, and A4 DAP entheses were assessed using a new dynamic maneuver to better evaluate those structures. RESULTS: 1200 DAP (400 cadaveric, 800 HC) were analyzed. The cadaveric study demonstrated strong correlation between anatomical and US measurement of DAP (r = 0.96). At histological level, DAP entheses at the volar plate, sesamoid bones, or phalangeal ridges contained fibrous and fibrocartilaginous tissue. The US assessment of A1, A2, and A4 DAP in HC allowed the identification of 718/720 (99.73%) entheses. CONCLUSION: US is an effective tool to detect and study DAP. DAP entheses reveal both fibrous and fibrocartilaginous characteristics. A newly described maneuver to optimize DAP enthesis visualization enhances their detection by US.

2.
Ultraschall Med ; 43(1): 34-57, 2022 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-34479372

RESUMEN

The first part of the guidelines and recommendations for musculoskeletal ultrasound, produced under the auspices of the European Federation of Societies for Ultrasound in Medicine and Biology (EFSUMB), provides information about the use of musculoskeletal ultrasound for assessing extraarticular structures (muscles, tendons, entheses, ligaments, bones, bursae, fasciae, nerves, skin, subcutaneous tissues, and nails) and their pathologies. Clinical applications, practical points, limitations, and artifacts are described and discussed for every structure. After an extensive literature review, the recommendations have been developed according to the Oxford Centre for Evidence-based Medicine and GRADE criteria and the consensus level was established through a Delphi process. The document is intended to guide clinical users in their daily practice.


Asunto(s)
Artefactos , Sociedades Médicas , Medicina Basada en la Evidencia , Humanos , Ultrasonografía
3.
Ultraschall Med ; 43(3): 252-273, 2022 06.
Artículo en Inglés | MEDLINE | ID: mdl-34734404

RESUMEN

The second part of the Guidelines and Recommendations for Musculoskeletal Ultrasound (MSUS), produced under the auspices of EFSUMB, following the same methodology as for Part 1, provides information and recommendations on the use of this imaging modality for joint pathology, pediatric applications, and musculoskeletal ultrasound-guided procedures. Clinical application, practical points, limitations, and artifacts are described and discussed for every joint or procedure. The document is intended to guide clinical users in their daily practice.


Asunto(s)
Artefactos , Niño , Humanos , Ultrasonografía
4.
Rheumatology (Oxford) ; 58(10): 1802-1811, 2019 10 01.
Artículo en Inglés | MEDLINE | ID: mdl-31034077

RESUMEN

OBJECTIVES: To develop and test the reliability of a new semiquantitative scoring system for the assessment of cartilage changes by ultrasound in a web-based exercise as well as a patient exercise of patients with RA. METHODS: A taskforce of the Outcome Measures in Rheumatology Ultrasound Working Group performed a systematic literature review on the US assessment of cartilage in RA, followed by a Delphi survey on cartilage changes and a new semiquantitative US scoring system, and finally a web-based exercise as well as a patient exercise. For the web-based exercise, taskforce members scored a dataset of anonymized static images of MCP joints in RA patients and healthy controls, which also contained duplicate images. Subsequently, 12 taskforce members used the same US to score cartilage in MCP and proximal interphalangeal joints of six patients with RA in in a patient reliability exercise. Percentage agreement and prevalence of lesions were calculated, as intrareader reliability was assessed by weighted kappa and interreader reliability by Light's kappa. RESULTS: The three-grade semiquantitative scoring system demonstrated excellent intrareader reliability (kappa: 0.87 and 0.83) in the web-based exercise and the patient exercise, respectively. Interreader reliability was good in the web-based exercise (kappa: 0.64) and moderate (kappa: 0.48) in the patient exercise. CONCLUSION: Our study demonstrates that ultrasound is a reliable tool for evaluating cartilage changes in the MCP joints of patients with RA and supports further development of a new reliable semiquantitative ultrasound scoring system for evaluating cartilage involvement in RA.


Asunto(s)
Artritis Reumatoide/diagnóstico por imagen , Cartílago/diagnóstico por imagen , Reumatología/métodos , Índice de Severidad de la Enfermedad , Ultrasonografía/estadística & datos numéricos , Adulto , Comités Consultivos , Técnica Delphi , Femenino , Humanos , Masculino , Articulación Metacarpofalángica/diagnóstico por imagen , Persona de Mediana Edad , Variaciones Dependientes del Observador , Reproducibilidad de los Resultados , Ultrasonografía/métodos
5.
BMC Musculoskelet Disord ; 20(1): 634, 2019 Dec 29.
Artículo en Inglés | MEDLINE | ID: mdl-31884951

RESUMEN

BACKGROUND: Carpal tunnel syndrome (CTS) is the commonest entrapment neuropathy. The aim of this study was to assess the accuracy and validity of high resolution musculoskeletal ultrasound (US) in the diagnosis of CTS in the Saudi population. METHODS: Sixty patients were diagnosed clinically to have CTS involving 89 wrists that were confirmed by neurophysiologic studies. Each affected wrist was characterized as idiopathic or associated with either diabetes mellitus or hypothyroidism and were assigned a severity grade based on results of neurophysiologic studies. Seventy-six healthy wrists from fifty age, sex and BMI matched healthy subjects were included in the control group. High resolution ultrasound (US) was performed to assess median nerve cross sectional area distal (CSAd) at the entry to the carpal tunnel and proximally (CSAp) at the level of pronator quadratus muscle with a further calculation of their difference (ΔCSA) and their mean average or CSAd+CSAp/2 (CSApd). RESULTS: There was a significant difference between both groups regarding mean ± SD of CSAd, CSAp, ∆CSA, and CSApd (p = 0.0001). A positive significant correlation was also found between the CSAd, ∆ CSA and the CSApd measurements with neurophysiologic severity grade of CTS (P = 0.001). A ∆CSA threshold of 2.5 mm2 showed the highest sensitivity and specificity to diagnose CTS in Saudis. CONCLUSION: High resolution ultrasound is a valid and accurate diagnostic modality in carpal tunnel syndrome and correlated to CTS severity. A ∆CSA greater than 2.5 mm2 is considered a valid diagnostic value for CTS in our Saudi population. CTS in our patients with diabetes tend to have greater median nerve US measurement values.


Asunto(s)
Síndrome del Túnel Carpiano/diagnóstico , Nervio Mediano/diagnóstico por imagen , Adulto , Síndrome del Túnel Carpiano/fisiopatología , Estudios de Casos y Controles , Electrodiagnóstico , Femenino , Humanos , Masculino , Nervio Mediano/fisiopatología , Persona de Mediana Edad , Conducción Nerviosa/fisiología , Sensibilidad y Especificidad , Índice de Severidad de la Enfermedad , Ultrasonografía
6.
Clin Exp Rheumatol ; 36 Suppl 114(5): 145-158, 2018.
Artículo en Inglés | MEDLINE | ID: mdl-30296978

RESUMEN

The motor and sensory branches of the somatic peripheral nervous system (PNS) can be visualised by different imaging systems. This article focuses on imaging of peripheral nerves by magnetic resonance imaging (MRI) and high-resolution ultrasound (US). The anatomic basis of the peripheral nerve image, common pathologies and clinical value of US and MRI imaging of peripheral nerves are reviewed.


Asunto(s)
Imagen por Resonancia Magnética/métodos , Nervios Periféricos/diagnóstico por imagen , Enfermedades del Sistema Nervioso Periférico/diagnóstico por imagen , Ultrasonografía/métodos , Humanos , Nervios Periféricos/fisiopatología , Enfermedades del Sistema Nervioso Periférico/fisiopatología , Enfermedades del Sistema Nervioso Periférico/terapia , Valor Predictivo de las Pruebas , Pronóstico , Reproducibilidad de los Resultados , Índice de Severidad de la Enfermedad
7.
Ann Rheum Dis ; 76(12): 1974-1979, 2017 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-28814430

RESUMEN

BACKGROUND: In 2001, the European League Against Rheumatism developed and disseminated the first guidelines for musculoskeletal (MS) ultrasound (US) in rheumatology. Fifteen years later, the dramatic expansion of new data on MSUS in the literature coupled with technological developments in US imaging has necessitated an update of these guidelines. OBJECTIVES: To update the existing MSUS guidelines in rheumatology as well as to extend their scope to other anatomic structures relevant for rheumatology. METHODS: The project consisted of the following steps: (1) a systematic literature review of MSUS evaluable structures; (2) a Delphi survey among rheumatologist and radiologist experts in MSUS to select MS and non-MS anatomic structures evaluable by US that are relevant to rheumatology, to select abnormalities evaluable by US and to prioritise these pathologies for rheumatology and (3) a nominal group technique to achieve consensus on the US scanning procedures and to produce an electronic illustrated manual (ie, App of these procedures). RESULTS: Structures from nine MS and non-MS areas (ie, shoulder, elbow, wrist and hand, hip, knee, ankle and foot, peripheral nerves, salivary glands and vessels) were selected for MSUS in rheumatic and musculoskeletal diseases (RMD) and their detailed scanning procedures (ie, patient position, probe placement, scanning method and bony/other landmarks) were used to produce the App. In addition, US evaluable abnormalities present in RMD for each anatomic structure and their relevance for rheumatology were agreed on by the MSUS experts. CONCLUSIONS: This task force has produced a consensus-based comprehensive and practical framework on standardised procedures for MSUS imaging in rheumatology.


Asunto(s)
Enfermedades Musculoesqueléticas/diagnóstico por imagen , Enfermedades Reumáticas/diagnóstico por imagen , Reumatología/normas , Ultrasonografía/métodos , Ultrasonografía/normas , Consenso , Técnica Delphi , Europa (Continente) , Humanos
8.
Rheumatol Int ; 36(6): 863-9, 2016 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-26995000

RESUMEN

To establish whether a cadaver model can serve as an effective surrogate for the detection of tendon damage characteristic of rheumatoid arthritis (RA). In addition, we evaluated intraobserver and interobserver agreement in the grading of RA-like tendon tears shown by US, as well as the concordance between the US findings and the surgically induced lesions in the cadaver model. RA-like tendon damage was surgically induced in the tibialis anterior tendon (TAT) and tibialis posterior tendon (TPT) of ten ankle/foot fresh-frozen cadaveric specimens. Of the 20 tendons examined, six were randomly assigned a surgically induced partial tear; six a complete tear; and eight left undamaged. Three rheumatologists, experts in musculoskeletal US, assessed from 1 to 5 the quality of US imaging of the cadaveric models on a Likert scale. Tendons were then categorized as having either no damage, (0); partial tear, (1); or complete tear (2). All 20 tendons were blindly and independently evaluated twice, over two rounds, by each of the three observers. Overall, technical performance was satisfactory for all items in the two rounds (all values over 2.9 in a Likert scale 1-5). Intraobserver and interobserver agreement for US grading of tendon damage was good (mean κ values 0.62 and 0.71, respectively), with greater reliability found in the TAT than the TPT. Concordance between US findings and experimental tendon lesions was acceptable (70-100 %), again greater for the TAT than for the TPT. A cadaver model with surgically created tendon damage can be useful in evaluating US metric properties of RA tendon lesions.


Asunto(s)
Traumatismos del Tobillo/diagnóstico por imagen , Articulación del Tobillo/diagnóstico por imagen , Artritis Reumatoide/diagnóstico por imagen , Traumatismos de los Tendones/diagnóstico por imagen , Tendones/diagnóstico por imagen , Ultrasonografía , Anciano , Anciano de 80 o más Años , Cadáver , Femenino , Humanos , Masculino , Variaciones Dependientes del Observador , Valor Predictivo de las Pruebas , Distribución Aleatoria , Reproducibilidad de los Resultados , Índice de Severidad de la Enfermedad
9.
J Ultrasound Med ; 35(4): 823-9, 2016 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-26960800

RESUMEN

Chronic exertional compartment syndrome is characterized by exertional pain and elevated intracompartmental pressures affecting the leg in physically active young people. In patients who have failed conservative measures, fasciotomy is the treatment of choice. This study presents a new method for performing fasciotomy using high-resolution ultrasound (US) guidance and reports on the clinical outcomes in a group of these patients. Over a 3-year period, 7 consecutive patients with a total of 9 involved legs presented clinically with anterior compartment chronic exertional compartment syndrome, which was confirmed by intracompartmental pressure measurements before and after exercise. After a US examination, fasciotomy under US guidance was performed. Preoperative and postoperative pain and activity levels were assessed as well as number of days needed to "return to play." All patients had a decrease in pain, and all except 1 returned to presymptomatic exercise levels with a median return to play of 35 days.


Asunto(s)
Síndromes Compartimentales/diagnóstico por imagen , Síndromes Compartimentales/cirugía , Fascia/diagnóstico por imagen , Fasciotomía/métodos , Cirugía Asistida por Computador/métodos , Ultrasonografía/métodos , Adolescente , Adulto , Descompresión Quirúrgica/métodos , Humanos , Pierna/diagnóstico por imagen , Pierna/cirugía , Esfuerzo Físico , Resultado del Tratamiento , Adulto Joven
10.
J Ultrasound Med ; 35(4): 823-829, 2016 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-28027611

RESUMEN

Chronic exertional compartment syndrome is characterized by exertional pain and elevated intracompartmental pressures affecting the leg in physically active young people. In patients who have failed conservative measures, fasciotomy is the treatment of choice. This study presents a new method for performing fasciotomy using high-resolution ultrasound (US) guidance and reports on the clinical outcomes in a group of these patients. Over a 3-year period, 7 consecutive patients with a total of 9 involved legs presented clinically with anterior compartment chronic exertional compartment syndrome, which was confirmed by intracompartmental pressure measurements before and after exercise. After a US examination, fasciotomy under US guidance was performed. Preoperative and postoperative pain and activity levels were assessed as well as number of days needed to "return to play." All patients had a decrease in pain, and all except 1 returned to presymptomatic exercise levels with a median return to play of 35 days.


Asunto(s)
Síndrome del Compartimento Anterior/diagnóstico por imagen , Síndrome del Compartimento Anterior/cirugía , Traumatismos en Atletas/diagnóstico por imagen , Traumatismos en Atletas/cirugía , Fasciotomía/métodos , Ultrasonografía Intervencional/métodos , Adolescente , Adulto , Enfermedad Crónica , Estudios de Seguimiento , Humanos , Pierna/diagnóstico por imagen , Pierna/cirugía , Resultado del Tratamiento , Adulto Joven
11.
J Ultrasound Med ; 33(11): 2021-30, 2014 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-25336491

RESUMEN

Sonography of the iliopsoas tendon plays an important role in the diagnosis and preoperative and postoperative management for the increasing number of patients under consideration for arthroscopically guided hip interventions such as iliopsoas tenotomy in a variety of conditions, including arthropathy, periarticular calcifications, and cam-type deformities of the femoral head. The ability to visualize the iliopsoas tendon pre-operatively can be helpful diagnostically in patients presenting with hip pain and can aid in planning surgery, while evaluating the tendon postoperatively is important in the assessment of causes of postoperative pain and other potential complications. We present a novel technique for visualizing the distal iliopsoas tendon complex in the longitudinal axis at its insertion on the lesser trochanter on sonography.


Asunto(s)
Puntos Anatómicos de Referencia/diagnóstico por imagen , Articulación de la Cadera/diagnóstico por imagen , Aumento de la Imagen/métodos , Posicionamiento del Paciente/métodos , Tendinopatía/diagnóstico por imagen , Tendones/diagnóstico por imagen , Ultrasonografía/métodos , Adulto , Anciano , Anciano de 80 o más Años , Cadáver , Femenino , Humanos , Masculino , Persona de Mediana Edad , Músculos Psoas/diagnóstico por imagen , Reproducibilidad de los Resultados , Sensibilidad y Especificidad , Adulto Joven
12.
Skeletal Radiol ; 43(6): 805-12, 2014 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-24627005

RESUMEN

OBJECTIVE: To assess the sensitivity of ultrasound in detecting soleus muscle lesions diagnosed on magnetic resonance imaging (MRI) and to characterize their location, ultrasound pattern, and evolution. MATERIALS AND METHODS: Ultrasound and MRI studies were performed between May 2009 and February 2013 on all patients who presented to the Medical Services Clinic of the Catalan Sport Council with the initial onset of sharp pain in the calf compatible with injury of the soleus muscle. An inter-observer ultrasound reliability study was also performed. RESULTS: A total of 55 cases of soleus injury were studied prospectively (22 with right leg involvement, 33 left) by ultrasound and MRI, which was utilized as the "gold standard." In MRI studies, 24 cases (43.7%) had myofascial injuries that were localized in the posterior aponeurosis (PMF) in 15 cases (27.3%) and in the anterior aponeurosis (AMF) in 9 (16.4%). Thirty-one cases (56.3%) were musculotendinous injuries, with 9 cases (16.4%) in the medial aponeurosis (MMT), 11 cases (20%) in the lateral aponeurosis (LMT), and 11 cases (20%) in the central tendon (CMT). In comparison to MRI, ultrasound was able to detect injury to the soleus in 27.2% of cases. No injuries were detected by ultrasound alone. Posterior myofascial injuries were more likely to be detected by ultrasound than anterior myofascial injuries or all types of musculotendinous injuries. Ultrasound patterns for each type of injury were described. CONCLUSION: Ultrasound is not a sensitive technique for detecting and assessing soleus traumatic tears compared with MRI, although the sensitivity is enhanced by a thorough anatomically based ultrasound examination. Timing of the ultrasound examination may be of importance. Each type of soleus injury appears to have a characteristic ultrasound pattern based on a defect of connective expansions, the existence of small myofascial filiform collections, and the rarefaction of the fibrillar area.


Asunto(s)
Traumatismos en Atletas/diagnóstico por imagen , Traumatismos de la Pierna/diagnóstico por imagen , Traumatismo Múltiple/diagnóstico por imagen , Músculo Esquelético/diagnóstico por imagen , Músculo Esquelético/lesiones , Traumatismos de los Tejidos Blandos/diagnóstico por imagen , Traumatismos de los Tendones/diagnóstico por imagen , Adulto , Femenino , Humanos , Traumatismos de la Pierna/patología , Masculino , Traumatismo Múltiple/patología , Traumatismos de los Tejidos Blandos/patología , Traumatismos de los Tendones/patología , Ultrasonografía/métodos
13.
Ultrasound J ; 16(1): 30, 2024 May 31.
Artículo en Inglés | MEDLINE | ID: mdl-38819664

RESUMEN

BACKGROUND: Point-of-care musculoskeletal (MSK) ultrasound (US) courses are typically held in-person. The COVID-19 pandemic guidelines forced courses to switch to online delivery. To determine this impact, we conducted an observational cohort study, comparing homework completion and image quality between an Online and a historical In-person cohort. METHODS: The In-person (n = 27) and Online (n = 24) cohorts attended two learning sessions spaced six months apart. The course content was the same, while the process of delivery differed. As homework, participants submitted US images biweekly for up to five months after each session. Expert faculty provided written feedback to all participants, and two independent reviewers rated the image quality for a subset of participants in each group who had completed at least 70% of their homework (In-person, n = 9; Online, n = 9). Participants self-reported their satisfaction through post-course evaluation. RESULTS: 63% of In-Person and 71% of Online cohort participants submitted their homework images. We observed no differences in the mean amount of homework images submitted for In-person (M = 37.3%, SD = 42.6%) and Online cohorts (M = 48.1%, SD = 38.8%; p > 0.05, Mann-Whitney U Test). At course end, the cohorts did not differ in overall image quality (p > 0.05, Wilcoxon Signed-rank Test). All participants reported high levels of satisfaction. CONCLUSIONS: A convenience sample of participants attending a basic MSK US course in-person and online did not differ statistically in homework completion, quality of submitted US images, or course satisfaction. We add to literature suggesting online learning remains a viable option post-pandemic.

14.
Vaccines (Basel) ; 12(6)2024 Jun 18.
Artículo en Inglés | MEDLINE | ID: mdl-38932401

RESUMEN

Novel mechanisms of COVID-19 vaccines raised concern about their potential immunogenicity in patients with rheumatoid arthritis (RA) undergoing immunomodulatory treatments. We designed a retrospective single-center study to investigate their effectiveness and safety in this population, analyzing data from the first vaccination program (December 2020-October 2021). Inclusion criteria were availability of post-vaccination serology and a minimum subsequent follow-up of 6 months. Binding antibody units (BAU/mL) ≥ 7.1 defined an adequate serological response. Post-vaccine COVID-19 incidence and its timing since vaccination, adverse events (AEs), and RA flares were recorded. Adjusted logistic and linear multivariate regression analyses were carried out to identify factors associated with vaccine response. We included 118 patients (87.2% women, age 65.4 ± 11.6 years, evolution 12.0 ± 9.6 years), of whom 95.8% had a complete vaccination schedule. Adequate humoral immunogenicity was achieved in 88.1% of patients and was associated with previous COVID-19 and mRNA vaccines, whereas smoking, aCCP, age, and DMARDs exerted a negative impact. Post-vaccine COVID-19 occurred in 18.6% of patients, a median of 6.5 months after vaccination. Vaccine AE (19.5%) and RA flares (1.7%) were mostly mild and inversely associated with age. Our results suggest that COVID-19 vaccines induce adequate humoral immunogenicity, with an acceptable safety profile in RA patients.

15.
Ann Rheum Dis ; 72(8): 1328-34, 2013 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-22984169

RESUMEN

OBJECTIVE: To produce consensus-based scoring systems for ultrasound (US) tenosynovitis and to assess the intraobserver and interobserver reliability of these scoring systems in rheumatoid arthritis (RA). METHODS: We undertook a Delphi process on US-defined tenosynovitis and US scoring system of tenosynovitis in RA among 35 rheumatologists, experts in musculoskeletal US (MSUS), from 16 countries. Then, we assessed the intraobserver and interobserver reliability of US in scoring tenosynovitis on B-mode and with a power Doppler (PD) technique. Ten patients with RA with symptoms in the hands or feet were recruited. Ten rheumatologists expert in MSUS blindly, independently and consecutively scored for tenosynovitis in B-mode and PD mode three wrist extensor compartments, two finger flexor tendons and two ankle tendons of each patient in two rounds in a blinded fashion. Intraobserver reliability was assessed by Cohen's κ. Interobserver reliability was assessed by Light's κ. Weighted κ coefficients with absolute weighting were computed for B-mode and PD signal. RESULTS: Four-grade semiquantitative scoring systems were agreed upon for scoring tenosynovitis in B-mode and for scoring pathological peritendinous Doppler signal within the synovial sheath. The intraobserver reliability for tenosynovitis scoring on B-mode and PD mode was good (κ value 0.72 for B-mode; κ value 0.78 for PD mode). Interobserver reliability assessment showed good κ values for PD tenosynovitis scoring (first round, 0.64; second round, 0.65) and moderate κ values for B-mode tenosynovitis scoring (first round, 0.47; second round, 0.45). CONCLUSIONS: US appears to be a reproducible tool for evaluating and monitoring tenosynovitis in RA.


Asunto(s)
Artritis Reumatoide/diagnóstico por imagen , Tenosinovitis/diagnóstico por imagen , Ultrasonografía , Adulto , Anciano , Artritis Reumatoide/complicaciones , Artritis Reumatoide/patología , Técnica Delphi , Femenino , Humanos , Cooperación Internacional , Articulaciones/diagnóstico por imagen , Articulaciones/patología , Masculino , Persona de Mediana Edad , Variaciones Dependientes del Observador , Reproducibilidad de los Resultados , Encuestas y Cuestionarios , Tenosinovitis/etiología , Tenosinovitis/patología
16.
Rheumatology (Oxford) ; 52(2): 376-81, 2013 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-23065319

RESUMEN

OBJECTIVE: To compare the carotid intima-media thickness (IMT) assessed with automated radiofrequency-based US in RA patients treated with synthetic vs synthetic and biologic DMARDs and controls. METHODS: Ninety-four RA patients and 94 sex- and age-matched controls were prospectively recruited at seven centres. Cardiovascular (CV) risk factors and co-morbidities, RA characteristics and therapy were recorded. Common carotid artery (CCA)-IMT was assessed in RA patients and controls with automated radiofrequency-based US by the same investigator at each centre. RESULTS: Forty-five (47.9%) RA patients had been treated with synthetic DMARDs and 49 (52.1%) with synthetic and biologic DMARDs. There were no significant differences between the RA patients and controls in demographics, CV co-morbidities and CV disease. There were significantly more smokers among RA patients treated with synthetic and biologic DMARDs (P = 0.036). Disease duration and duration of CS and synthetic DMARD therapy was significantly longer in RA patients treated with synthetic and biologic DMARDs (P < 0.0005). The mean CCA-IMT was significantly greater in RA patients treated only with synthetic DMARDs than in controls [591.4 (98.6) vs 562.1 (85.8); P = 0.035] and in RA patients treated with synthetic and biologic DMARDs [591.4 (98.6) vs 558.8 (95.3); P = 0.040). There was no significant difference between the mean CCA-IMT in RA patients treated with synthetic and biologic DMARDs and controls (P = 0.997). CONCLUSION: Our results suggest that radiofrequency-based measurement of CCA-IMT can discriminate between RA patients treated with synthetic DMARDs vs RA patients treated with synthetic and biologic DMARDs.


Asunto(s)
Antirreumáticos/uso terapéutico , Artritis Reumatoide/diagnóstico por imagen , Productos Biológicos/uso terapéutico , Arteria Carótida Común/diagnóstico por imagen , Grosor Intima-Media Carotídeo , Adulto , Artritis Reumatoide/tratamiento farmacológico , Estudios de Casos y Controles , Estudios Transversales , Quimioterapia Combinada , Femenino , Humanos , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Túnica Íntima/diagnóstico por imagen , Ultrasonografía/métodos
17.
J Ultrasound Med ; 32(10): 1735-43, 2013 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-24065254

RESUMEN

OBJECTIVES: The purpose of this study was to establish standards for musculoskeletal ultrasound competency through knowledge and skills testing using criterion-referenced methods. METHODS: Two groups of rheumatology fellows trained in musculoskeletal ultrasound through a standardized curriculum, which required submission of ultrasound studies for review over 8 months. Both groups then completed written and practical examinations in musculoskeletal ultrasound. Instructors, advanced users, and intermediate users of musculoskeletal ultrasound served as comparison groups. A passing score (competency) was established for the written examination by the Angoff procedure and for the practical examination by the borderline method. RESULTS: Thirty-eight fellows (19 in each group) took the final examination. Five fellows failed the written examination, and 1 failed the practical examination, whereas none of the advanced users failed. Written examination scores did not differ between the two fellow groups (74% versus 70%; P > .05), were reliable, and were able to discriminate between the intermediate and advanced groups. Practical and written examination results correlated in both groups (first group, r = 0.70; P = .0008; second group, r = 0.59; P = .009). CONCLUSIONS: Criterion-referenced methods were used for the first time to determine fellow musculoskeletal ultrasound competency. The examination used to determine competency was reproducible, was reliable, and could differentiate musculoskeletal ultrasound users with different levels of experience. Most rheumatology fellows completing our program passed the written and practical examinations, suggesting achievement of basic musculoskeletal ultrasound competency.


Asunto(s)
Evaluación Educacional/normas , Guías como Asunto , Internado y Residencia/normas , Sistema Musculoesquelético/diagnóstico por imagen , Radiología/normas , Reumatología/educación , Ultrasonografía/normas , Adulto , Curriculum/normas , Curriculum/estadística & datos numéricos , Evaluación Educacional/estadística & datos numéricos , Femenino , Conocimientos, Actitudes y Práctica en Salud , Humanos , Internado y Residencia/estadística & datos numéricos , Masculino , Competencia Profesional/normas , Competencia Profesional/estadística & datos numéricos , Radiología/estadística & datos numéricos , Reumatología/estadística & datos numéricos , Ultrasonografía/estadística & datos numéricos , Estados Unidos , Adulto Joven
18.
J Clin Ultrasound ; 41(2): 101-7, 2013 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-22965620

RESUMEN

BACKGROUND: Carpal tunnel syndrome is a common condition frequently requiring surgical intervention. We describe a new minimally invasive surgical technique for carpal tunnel release utilizing ultrasound (US) visualization. METHODS: The technique was performed on 20 fresh frozen cadaver specimens. A surgical metallic probe with a "U"-shaped trough and upward curved distal tip was precisely positioned in the carpal tunnel with US guidance followed by division of the flexor retinaculum (FR) with a "V"-shaped scalpel. RESULTS: Complete division of the FR was confirmed by US. Dissection performed on the specimens confirmed complete release of FR and absence of neurovascular injury. The distance from the division of the FR to these structures, the "safety margins," was measured. CONCLUSIONS: This new technique for carpal tunnel release appears to combine the safety and efficacy of open carpal tunnel surgery with the advantages of the minimally invasive techniques.


Asunto(s)
Síndrome del Túnel Carpiano/diagnóstico por imagen , Síndrome del Túnel Carpiano/cirugía , Procedimientos Quirúrgicos Mínimamente Invasivos/métodos , Monitoreo Intraoperatorio/métodos , Cadáver , Femenino , Humanos , Masculino , Reproducibilidad de los Resultados , Ultrasonografía
19.
Rheumatology (Oxford) ; 51(9): 1655-61, 2012 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-22627728

RESUMEN

OBJECTIVE: To assess the intra- and interobserver reliability of musculoskeletal ultrasonography (US) in detecting inflammatory and destructive tendon abnormalities in patients with RA using two different scanning methods. METHODS: Thirteen observers examined nine patients with RA and one healthy individual in two rounds independently and blindly of each other. Each round consisted of two consecutive examinations, an anatomy-based examination and a free examination according to personal preferences. The following tendons were evaluated: wrist extensor compartments 2, 4 and 6, finger flexor tendons 3 and 4 at MCP level, tibialis posterior tendon and both peronei tendons. Overall, positive and negative agreements and κ-values for greyscale (GS) tenosynovitis, peritendinous power Doppler (PPD) signal, intratendinous power Doppler (IPD) signal and GS tendon damage were calculated. RESULTS: Intraobserver κ-value ranges were 0.53-0.55 (P < 0.0005) for GS tenosynovitis, 0.61-0.64 (P < 0.0005) for PPD signal, 0.65-0.66 (P < 0.0005) for IPD signal and 0.44-0.53 (P < 0.0005) for GS tendon damage. For interobserver reliability, substantial overall agreement ranged from 80 to 89% for GS tenosynovitis, 97 to 100% for PPD signal, 97 to 100% for IPD signal and 97 to 100% for GS tendon damage. Results were independent of scanning technique. CONCLUSION: Intraobserver reliability for tenosynovitis and tendon damage varied from moderate for GS to good for PD. Overall interobserver reliability for tenosynovitis and tendon damage was excellent both for GS and PD. This qualitative scoring system may serve as the first step to a semi-quantitative score for tendon pathology.


Asunto(s)
Artritis Reumatoide/diagnóstico , Traumatismos de los Tendones/diagnóstico , Tendones/patología , Tenosinovitis/diagnóstico , Ultrasonografía/métodos , Adulto , Antirreumáticos/uso terapéutico , Artritis Reumatoide/complicaciones , Artritis Reumatoide/fisiopatología , Femenino , Humanos , Masculino , Persona de Mediana Edad , Variaciones Dependientes del Observador , Selección de Paciente , Reproducibilidad de los Resultados , Rotura , Traumatismos de los Tendones/complicaciones , Traumatismos de los Tendones/fisiopatología , Tendones/diagnóstico por imagen , Tenosinovitis/complicaciones , Tenosinovitis/fisiopatología
20.
J Digit Imaging ; 25(3): 437-44, 2012 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-21901535

RESUMEN

Diabetic retinopathy has become an increasingly important cause of blindness. Nevertheless, vision loss can be prevented from early detection of diabetic retinopathy and monitor with regular examination. Common automatic detection of retinal abnormalities is for microaneurysms, hemorrhages, hard exudates, and cotton wool spot. However, there is a worse case of retinal abnormality, but not much research was done to detect it. It is neovascularization where new blood vessels grow due to extensive lack of oxygen in the retinal capillaries. This paper shows that various combination of techniques such as image normalization, compactness classifier, morphology-based operator, Gaussian filtering, and thresholding techniques were used in developing of neovascularization detection. A function matrix box was added in order to classify the neovascularization from natural blood vessel. A region-based neovascularization classification was attempted as a diagnostic accuracy. The developed method was tested on images from different database sources with varying quality and image resolution. It shows that specificity and sensitivity results were 89.4% and 63.9%, respectively. The proposed approach yield encouraging results for future development.


Asunto(s)
Algoritmos , Retinopatía Diabética/patología , Interpretación de Imagen Asistida por Computador/métodos , Neovascularización Patológica/diagnóstico , Humanos , Reconocimiento de Normas Patrones Automatizadas , Curva ROC , Sensibilidad y Especificidad
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