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Musculoskeletal MRI

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https://www.readbyqxmd.com/read/28730928/feasibility-of-na-18-f-pet-ct-and-mri-for-noninvasive-in-vivo-quantification-of-knee-pathophysiological-bone-metabolism-in-a-canine-model-of-post-traumatic-osteoarthritis
#1
Maria I Menendez, Bianca Hettlich, Lai Wei, Michael V Knopp
PURPOSE: To assess and quantify by molecular imaging knee osseous metabolic changes serially in an in vivo canine model of posttraumatic osteoarthritis (PTOA) of the knee utilizing sodium fluoride (Na(18)F) positron emission tomography (PET)/computed tomography (CT) coregistered with magnetic resonance imaging (MRI). MATERIALS AND METHODS: Sodium fluoride PET imaging of 5 canines was performed prior to anterior cruciate ligament transection (ACLT) and 2 times post-ACLT (3 and 12 weeks)...
January 2017: Molecular Imaging
https://www.readbyqxmd.com/read/28729156/multivariate-pattern-analysis-utilizing-structural-or-functional-mri-in-individuals-with-musculoskeletal-pain-and-healthy-controls-a-systematic-review
#2
REVIEW
Ashley Smith, Marina López-Solà, Katie McMahon, Ashley Pedler, Michele Sterling
OBJECTIVE: The purpose of this systematic review is to systematically review the evidence relating to findings generated by multivariate pattern analysis (MVPA) following structural or functional magnetic resonance imaging (fMRI) to determine if this analysis is able to: a) Discriminate between individuals with musculoskeletal pain and healthy controls, b) Predict pain perception in healthy individuals stimulated with a noxious stimulus compared to those stimulated with a non-noxious stimulus...
June 15, 2017: Seminars in Arthritis and Rheumatism
https://www.readbyqxmd.com/read/28729007/the-feasibility-of-point-of-care-ankle-ultrasound-examination-in-patients-with-recurrent-ankle-sprain-and-chronic-ankle-instability-comparison-with-magnetic-resonance-imaging
#3
Sun Hwa Lee, Seong Jong Yun
OBJECTIVE: To evaluate the feasibility of point-of-care ankle ultrasound compared with magnetic resonance imaging (MRI) for diagnosing major ligaments and Achilles tendon injuries in patients with recurrent ankle sprain and chronic instability, and to evaluate inter-observer reliability between an emergency physician and a musculoskeletal radiology fellow. MATERIAL AND METHODS: A prospective cross-sectional study was conducted in an emergency department. Patients with recurrent ankle sprain and chronic instability were recruited...
July 13, 2017: Injury
https://www.readbyqxmd.com/read/28726508/optimizing-mri-logistics-prospective-analysis-of-performance-efficiency-and-patient-throughput
#4
Kevin Beker, Alejandro Garces-Descovich, Jason Mangosing, Ines Cabral-Goncalves, Donna Hallett, Koenraad J Mortele
OBJECTIVE: The objective of this study is to optimize MRI logistics through evaluation of MRI workflow and analysis of performance, efficiency, and patient throughput in a tertiary care academic center. SUBJECTS AND METHODS: For 2 weeks, workflow data from two outpatient MRI scanners were prospectively collected and stratified by value added to the process (i.e., value-added time, business value-added time, or non-value-added time). Two separate time cycles were measured: the actual MRI process cycle as well as the complete length of patient stay in the department...
July 20, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28716694/-isolated-long-thoracic-nerve-palsy-more-than-meets-the-eye
#5
Andrés A Maldonado, Scott L Zuckerman, B Matthew Howe, Michelle L Mauermann, Robert J Spinner
INTRODUCTION: Two main hypotheses have been proposed for the pathophysiology of long thoracic nerve (LTN) palsy: nerve compression and nerve inflammation. We hypothesized that critical reinterpretation of electrodiagnostic (EDX) studies and MRIs of patients with a diagnosis of non-traumatic isolated LTN palsy could provide insight into the pathophysiology and, potentially, the treatment. MATERIAL AND METHODS: A retrospective review was performed of all patients with a diagnosis of non-traumatic isolated LTN palsy and an EDX and brachial plexus or shoulder MRI studies performed at our institution...
June 27, 2017: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/28707535/anatomical-and-mr-correlative-study-of-the-proximal-sciatic-nerve-vasculature
#6
Neal Larkman, Guillaume Lefebvre, Thibault Jacques, Anne Cotten, Xavier Demondion, Anne Cotten
AIMS: The aim of our study is to demonstrate that increased T2 signal on MRI could be due to intraneural vessels in asymptomatic individuals, and may therefore be a normal finding. METHODS: An initial anatomic cadaveric study was undertaken to gain a better understanding of the vascular supply of the proximal sciatic nerve. Secondly, a retrospective study of MR imaging of patients without sciatic symptoms was performed to assess the prevalence of intraneural vessels, defined as hyperintensity on at least 3 consecutive slices on both T2 and Gadolinium enhanced T1 weighted imaging, visible on routine MSK pelvic imaging...
July 14, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/28706091/predict-cp-study-protocol-of-implementation-of-comprehensive-surveillance-to-predict-outcomes-for-school-aged-children-with-cerebral-palsy
#7
Roslyn N Boyd, Peter Sw Davies, Jenny Ziviani, Stewart Trost, Lee Barber, Robert Ware, Stephen Rose, Koa Whittingham, Leanne Sakzewski, Kristie Bell, Christopher Carty, Steven Obst, Katherine Benfer, Sarah Reedman, Priya Edwards, Megan Kentish, Lisa Copeland, Kelly Weir, Camilla Davenport, Denise Brooks, Alan Coulthard, Rebecca Pelekanos, Andrea Guzzetta, Simona Fiori, Meredith Wynter, Christine Finn, Andrea Burgess, Kym Morris, John Walsh, Owen Lloyd, Jennifer A Whitty, Paul A Scuffham
OBJECTIVES: Cerebral palsy (CP) remains the world's most common childhood physical disability with total annual costs of care and lost well-being of $A3.87b. The PREDICT-CP (NHMRC 1077257 Partnership Project: Comprehensive surveillance to PREDICT outcomes for school age children with CP) study will investigate the influence of brain structure, body composition, dietary intake, oropharyngeal function, habitual physical activity, musculoskeletal development (hip status, bone health) and muscle performance on motor attainment, cognition, executive function, communication, participation, quality of life and related health resource use costs...
July 12, 2017: BMJ Open
https://www.readbyqxmd.com/read/28681563/osteitis-condensans-ilii-may-demonstrate-bone-marrow-edema-on-sacroiliac-joint-magnetic-resonance-imaging
#8
Ling Ma, Zhenhua Gao, Yi Zhong, Quanfei Meng
AIM: To reveal whether bone marrow edema (BME) may appear with osteitis condensans ilii (OCI) on sacroiliac joint (SIJ) magnetic resonance imaging (MRI) and to evaluate the characteristics of BME demonstrated with OCI. METHOD: Altogether 27 symptomatic female OCI patients with both complete clinical records and SIJ-MRI examination data were enrolled for retrospective analysis. SIJ-MRI exams were retrospectively analyzed by two musculoskeletal radiologists. Patients were separated into BME group and non-BME group according to whether there was BME of SIJ demonstrated as high signal intensity on MR short tau inversion recovery sequences beneath the SIJ articular surface...
July 5, 2017: International Journal of Rheumatic Diseases
https://www.readbyqxmd.com/read/28664487/comparative-us-mri-evaluation-of-the-insall-salvati-index
#9
Francesco Giovagnorio, Matteo Olive, Alice Casinelli, Elena Maggini, Cristina Presicci, Celijeta Tominaj, Paolo Ricci
PURPOSE: To investigate whether the universally accepted range of normal patellar height ratio derived from MRI for the Insall-Salvati (IS) method could be similarly applied to ultrasound (US). MATERIALS AND METHODS: This study included 52 patients (age range 11-75 years) who underwent a bi-modality (US and MRI) examination, with a total of 60 knees evaluated. IS index (ratio of the patella tendon length to length of the patella) was acquired with both methods...
June 29, 2017: La Radiologia Medica
https://www.readbyqxmd.com/read/28661935/musculoskeletal-manifestations-of-systemic-lupus-erythmatosus
#10
Khaled Mahmoud, Ahmed Zayat, Edward M Vital
PURPOSE OF REVIEW: Imaging studies suggest potential changes to the classification and assessment of inflammatory musculoskeletal lupus. This is important because of the burden of disease but the potential for new targeted therapies. RECENT FINDINGS: Using our current classification and treatment, musculoskeletal symptoms continue to impact significantly on quality of life and work disability. Ultrasound and MRI studies suggested that new approaches to the diagnosis, classification, and evaluation of these symptoms are needed...
June 28, 2017: Current Opinion in Rheumatology
https://www.readbyqxmd.com/read/28658034/do-occupational-risks-for-low-back-pain-differ-from-risks-for-specific-lumbar-disc-diseases-results-of-the-german-lumbar-spine-study-epilift
#11
Annekatrin Bergmann, Ulrich Bolm-Audorff, Dirk Ditchen, Rolf Ellegast, Joachim Grifka, Johannes Haerting, Friedrich Hofmann, Matthias Jäger, Oliver Linhardt, Alwin Luttmann, Hans Jörg Meisel, Martina Michaelis, Gabriela Petereit-Haack, Barbara Schumann, Andreas Seidler
STUDY DESIGN: A multicentre population based case-control study. OBJECTIVE: The aim of the present analysis is to clarify potential differences in the "occupational risk profiles" of structural lumbar disc diseases on the one hand, and low back pain (LBP) on the other hand. SUMMARY OF BACKGROUND DATA: Physical workplace factors seem to play an important aetiological role. METHODS: We recruited 901 patients with structural lumbar disc diseases (disc herniation or severe disc space narrowing) and 233 control subjects with "low-back-pain"...
June 27, 2017: Spine
https://www.readbyqxmd.com/read/28655628/tunnel-positioning-assessment-after-anterior-cruciate-ligament-reconstruction-at-12-months-comparison-between-3d-ct-and-3d-mri-a-pilot-study
#12
Emmanuel Ducouret, Philippe Loriaut, Patrick Boyer, Anne Perozziello, Lionel Pesquer, Charbel Mounayer, Benjamin Dallaudiere
BACKGROUND: Tunnel positioning assessment is a major issue after anterior cruciate ligament (ACL) reconstruction surgery. Historically, it used plain X-ray and, more recently, CT with 3D reconstruction. MRI is a reliable method of assessing ACL graft integrity and postoperative complications. To our knowledge, there have been no studies of efficacy in tunnel positioning assessment. The aim of this study was to assess the efficacy of 3D MRI in assessing femoral and tibial tunnel positioning after ACL reconstruction...
June 24, 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/28653078/mri-characteristics-of-torn-and-untorn-post-operative-menisci
#13
Richard Kijowski, Humberto Rosas, Adam Williams, Fang Liu
OBJECTIVE: To compare magnetic resonance imaging (MRI) characteristics of torn and untorn post-operative menisci. METHODS: The study group consisted of 140 patients with 148 partially resected menisci who were evaluated with a repeat knee MRI examination and subsequent repeat arthroscopic knee surgery. Two musculoskeletal radiologists retrospectively assessed the following MRI characteristics of the post-operative meniscus: contour (smooth or irregular), T2 line through the meniscus (no line, intermediate signal line, intermediate-to-high signal line, and high fluid-like signal line), displaced meniscus fragment, and change in signal pattern through the meniscus compared with baseline MRI...
June 26, 2017: Skeletal Radiology
https://www.readbyqxmd.com/read/28647842/excellent-healing-rates-and-patient-satisfaction-after-arthroscopic-repair-of-medium-to-large-rotator-cuff-tears-with-a-single-row-technique-augmented-with-bone-marrow-vents
#14
Brian D Dierckman, Jake J Ni, Ronald P Karzel, Mark H Getelman
PURPOSE: This study evaluated the repair integrity and patient clinical outcomes following arthroscopic rotator cuff repair of medium to large rotator cuff tears using a single-row technique consisting of medially based, triple-loaded anchors augmented with bone marrow vents in the rotator cuff footprint lateral to the repair. METHODS: This is a retrospective study of 52 patients (53 shoulders) comprising 36 males and 16 females with a median age of 62 (range 44-82) with more than 24-month follow-up, tears between 2 and 4 cm in the anterior-posterior dimension and utilizing triple-loaded anchors...
June 24, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28628751/comparison-between-line-and-surface-mesh-models-to-represent-the-rotator-cuff-muscle-geometry-in-musculoskeletal-models
#15
Marion Hoffmann, Diane Haering, Mickaël Begon
Accurate muscle geometry (muscle length and moment arm) is required to estimate muscle function when using musculoskeletal modelling. In shoulder, muscles are often modelled as a collection of independent line segments, leading to non-physiological muscles trajectory, especially for the rotator cuff muscles. To prevent this, a surface mesh model was developed and validated against 7 MRI positions in one participant. Mean moment arm errors was 11.4% for the line vs. 8.8% for the mesh model. While the model with independent lines led to some non-physiological trajectories, the mesh model gave lower misestimations of muscle lengths and moment arms...
June 19, 2017: Computer Methods in Biomechanics and Biomedical Engineering
https://www.readbyqxmd.com/read/28616021/mri-analysis-and-clinical-significance-of-lower-extremity-muscle-cross-sectional-area-after-spinal-cord-injury
#16
REVIEW
Robert M Lester, Kori Johnson, Refka E Khalil, Rehan Khan, Ashraf S Gorgey
Shortly after spinal cord injury (SCI), the musculoskeletal system undergoes detrimental changes in size and composition, predominantly below the level of injury. The loss of muscle size and strength, along with increased immobility, predisposes persons with SCI to rapid and severe loss in bone mineral density and other health related consequences. Previous studies have highlighted the significance of measuring thigh muscle cross-sectional area, however, measuring the size and composition of muscles of the lower leg may provide insights on how to decrease the risk of various comorbidities...
May 2017: Neural Regeneration Research
https://www.readbyqxmd.com/read/28608002/value-of-ultrasonographic-evaluation-for-soft-tissue-lesions-focus-on-incidentally-detected-lesions-on-ct-mri
#17
REVIEW
Sung Bin Park, Byeong Seong Kang
Soft-tissue lesions of the musculoskeletal system are commonly encountered in clinical practice and often manifest as palpable lesions. Moreover, the increasing use of cross-sectional imaging such as CT or MRI has resulted in the incidental detection of many soft-tissue lesions. Ultrasonography remains the primary imaging investigation for soft-tissue lesions. It has been shown to be helpful in depicting processes involving the soft-tissue lesions on cross-sectional imaging. This article describes the ultrasonographic findings of the most frequently incidentally detected benign and malignant soft-tissue lesions on cross-sectional imaging and suggests the characteristics of such diseases, focusing on the ultrasonographic features that allow accurate diagnosis...
June 12, 2017: Japanese Journal of Radiology
https://www.readbyqxmd.com/read/28607814/chiari-i-malformation-and-syringomyelia-in-mucopolysaccharidosis-type-i-hurler-syndrome-treated-with-posterior-fossa-decompression-case-report-and-review-of-the-literature
#18
Vyacheslav Makler, Christina L Goldstein, Daniel Hoernschemeyer, Tomoko Tanaka
BACKGROUND: Hurler Syndrome is the most severe phenotype of mucopolysaccharidosis type I. With bone marrow transplant and enzyme replacement therapy, the life expectancy of a child with Hurler syndrome has been extended, predisposing them to multiple musculoskeletal issues most commonly involving the spine. CASE DESCRIPTION: This is the case report of a 6-year-old male with Hurler syndrome who was diagnosed with Chiari I malformation and cervicothoracic syringomyelia on a preoperative magnetic resonance imaging (MRI) for his thoracolumbar kyphosis...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/28594530/key-concepts-of-musculoskeletal-infection
#19
Scott B Rosenfeld, Lawson A Copley, Megan Mignemi, Thomas An, Michael Benvenuti, Jonathan Schoenecker
Over the past few decades, musculoskeletal infections have increased in both incidence and severity. The clinical manifestations of musculoskeletal infections range from isolated osteomyelitis to multisite infections with systemic complications. Although this increased incidence of musculoskeletal infections correlates with the increased incidence of methicillin-resistant Staphylococcus aureus infections, other nonresistant infectious organisms have been associated with severe musculoskeletal infections; this finding supports the likelihood that an antibiotic resistance profile is not a major factor in bacterial virulence...
February 15, 2017: Instructional Course Lectures
https://www.readbyqxmd.com/read/28590821/t2-mapping-of-the-sacroiliac-joints-with-3-t-mri-a-preliminary-study
#20
Guillaume Lefebvre, Antonin Bergère, Mazen El Rafei, Alain Duhamel, Pedro Teixeira, Anne Cotten
OBJECTIVE: The objective of this study was to assess the feasibility of T2 relaxation time measurements of the sacroiliac joints. SUBJECTS AND METHODS: The sacroiliac joints of 40 patients were imaged by 3-T MRI using an oblique axial multislice multiecho spin-echo T2-weighted sequence. Manual plotting and automatic subdivision of ROIs allowed us to obtain T2 values for up to 48 different areas per patient (posterior and anterior parts, sacral, intermediate, and iliac parts)...
August 2017: AJR. American Journal of Roentgenology
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