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https://www.readbyqxmd.com/read/28906125/imaging-of-rare-appendicular-non-acral-soft-tissue-chondromas-in-adults-with-histopathologic-correlation
#1
Mohamed Ragab Nouh, Hanan Abd El-Aziz Amr, Rola H Ali
Background Soft-tissue chondroma (STC) is a rare benign soft tissue tumor that arises primarily in acral extra-skeletal locations. Occasionally, STCs may arise in more proximal non-acral locations, accompanied by non-classic features that label them as indeterminate lesions and pose diagnostic challenge for both radiologists and pathologists alike. Purpose To explicate the potential of diagnostic imaging in the identification and characterization of appendicular non-acral STCs with emphasis on their morphologic magnetic resonance imaging (MRI) enhancement...
January 1, 2017: Acta Radiologica
https://www.readbyqxmd.com/read/28823067/combined-classical-spindle-cell-pleomorphic-lipoma-spectrum-imaging-and-clinical-data
#2
Yara Younan, Anthony Martinez, Nickolas Reimer, Mark Edgar, Felix Gonzalez, Monica Umpierrez, Ty Subhawong, Adam D Singer
OBJECTIVES: Compile the largest study to date on the imaging and clinical features of the classic spindle cell/pleomorphic lipoma spectrum and suggest this diagnosis be included in the differential for benign and malignant macroscopic fat-containing soft tissue masses regardless of the mass location or patient demographics. MATERIALS AND METHODS: An institutional search was performed to identify all available classic-type spindle cell/pleomorphic lipomas with available demographic and imaging data...
August 19, 2017: Skeletal Radiology
https://www.readbyqxmd.com/read/28750903/computing-eye-gaze-metrics-for-the-automatic-assessment-of-radiographer-performance-during-x-ray-image-interpretation
#3
Laura McLaughlin, Raymond Bond, Ciara Hughes, Jonathan McConnell, Sonyia McFadden
AIM: To investigate image interpretation performance by diagnostic radiography students, diagnostic radiographers and reporting radiographers by computing eye gaze metrics using eye tracking technology. METHODS: Three groups of participants were studied during their interpretation of 8 digital radiographic images including the axial and appendicular skeleton, and chest (prevalence of normal images was 12.5%). A total of 464 image interpretations were collected. Participants consisted of 21 radiography students, 19 qualified radiographers and 18 qualified reporting radiographers who were further qualified to report on the musculoskeletal (MSK) system...
September 2017: International Journal of Medical Informatics
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
#4
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/28707535/anatomical-and-mr-correlative-study-of-the-proximal-sciatic-nerve-vasculature
#5
Neal Larkman, Guillaume Lefebvre, Thibault Jacques, Xavier Demondion, Hervé Cotten, Anne Cotten
OBJECTIVE: 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 three consecutive slices on both T2 and gadolinium enhanced T1 weighted imaging, visible on routine MSK pelvic imaging...
August 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/28623421/comparison-of-dual-energy-ct-ultrasound-and-surface-measurement-for-assessing-tophus-dissolution-during-rapid-urate-debulking
#6
Dodji V Modjinou, Svetlana Krasnokutsky, Soterios Gyftopoulos, Virginia C Pike, Elaine Karis, Robert T Keenan, Kristen Lee, Daria B Crittenden, Jonathan Samuels, Michael H Pillinger
Tophaceous gout is painful and impairs quality of life. The optimal modality for assessing tophus resolution in response to urate-lowering treatment remains poorly defined. Using pegloticase as a model system for resolving tophi, we compared multiple imaging and physical diagnostic strategies for assessing tophus resolution. A 32-year-old subject with chronic refractory tophaceous gout was enrolled and received 6 months of pegloticase treatment. Measurements of tophi using vernier calipers (monthly), photographs and musculoskeletal ultrasound (MSK-US; every 3 months), and dual-energy CT (DECT) were compared...
June 16, 2017: Clinical Rheumatology
https://www.readbyqxmd.com/read/28343621/fixed-flexion-knee-radiography-using-a-new-positioning-device-produced-highly-repeatable-measurements-of-joint-space-width-elsa-brasil-musculoskeletal-study-elsa-brasil-msk
#7
Rosa Weiss Telles, Luciana Costa-Silva, Luciana A C Machado, Rodrigo Citton Padilha Dos Reis, Sandhi Maria Barreto
OBJECTIVE: To describe the performance of a non-fluoroscopic fixed-flexion PA radiographic protocol with a new positioning device, developed for the assessment of knee osteoarthritis (OA) in Brazilian Longitudinal Study of Adult Health Musculoskeletal Study (ELSA-Brasil MSK). MATERIAL AND METHODS: A test-retest design including 19 adults (38 knee images) was conducted. Feasibility of the radiographic protocol was assessed by image quality parameters and presence of radioanatomic alignment according to intermargin distance (IMD) values...
March 2017: Revista Brasileira de Reumatologia
https://www.readbyqxmd.com/read/28331952/diagnostic-strategies-for-posttraumatic-osteomyelitis-a-survey-amongst-dutch-medical-specialists-demonstrates-the-need-for-a-consensus-protocol
#8
G A M Govaert, A W J M Glaudemans, J J W Ploegmakers, A R Viddeleer, K W Wendt, I H F Reininga
INTRODUCTION: Posttraumatic osteomyelitis (PTO) is a feared complication after surgical fracture care. Late diagnosis can result in interrupted and prolonged rehabilitation programmes, inability to work, medical dependency, unnecessary hospital admissions, and high medical and non-medical costs. Primary aim of this study was to assess preferred diagnostic imaging strategies for diagnosing PTO amongst orthopaedic and trauma surgeons, radiologists, and nuclear medicine physicians. Secondary aims were to determine the preferred serum inflammatory marker for diagnosing PTO and the existence of a local hospital protocol to diagnose and manage PTO...
March 22, 2017: European Journal of Trauma and Emergency Surgery: Official Publication of the European Trauma Society
https://www.readbyqxmd.com/read/28253529/comparative-effectiveness-research-in-musculoskeletal-imaging
#9
REVIEW
Shadpour Demehri, Michael P Recht, Christoph I Lee
The primary goal of comparative effectiveness research (CER) is to define the optimal choice among alternative diagnostic and interventional strategies for a given clinical scenario among major stakeholders in the health care system. In an era where health care decision makers are demanding greater evidence of improved patient outcomes from the use of medical technologies, musculoskeletal (MSK) imagers must be more engaged in generating quality CER. We provide an overview of CER and its expanding role in U...
February 2017: Seminars in Musculoskeletal Radiology
https://www.readbyqxmd.com/read/28228698/current-and-prospective-use-of-musculoskeletal-diagnostic-ultrasound-imaging-at-chiropractic-teaching-institutions-a-worldwide-survey-of-diagnostic-imaging-staff
#10
Rogan E A Henderson, Bruce F Walker, Kenneth J Young
OBJECTIVE: The purpose of this study was to survey the use of musculoskeletal diagnostic ultrasound imaging (MSK-DUSI) at chiropractic educational programs worldwide and to elicit opinions of academic diagnostic imaging staff of its prospective use at their teaching institutions. METHODS: An electronic questionnaire was delivered in 2014 using SurveyMonkey and notifications were disseminated by e-mail to 127 diagnostic imaging staff at chiropractic programs worldwide...
March 2017: Journal of Chiropractic Medicine
https://www.readbyqxmd.com/read/28187999/intraobserver-and-interobserver-variability-of-the-bone-marrow-burden-bmb-score-for-the-assessment-of-disease-severity-in-gaucher-disease-possible-impact-of-reporting-experience
#11
Jeffrey K C Lai, Patricia L Robertson, Christine Goh, Jeff Szer
AIM: To evaluate the intraobserver and interobserver agreement for bone marrow burden (BMB) scores for individual examinations and for the change in BMB score over time in the same patient. METHODS: A total of 119 sets of MR images of the lumbar spine and femora from 60 patients with Gaucher disease were included. Each set of MR images was scored using the BMB score independently by two experienced MSK radiologists. One radiologist performed a second read four weeks later...
November 14, 2016: Blood Cells, Molecules & Diseases
https://www.readbyqxmd.com/read/28096168/sk-channel-enhancers-attenuate-ca2-dependent-arrhythmia-in-hypertrophic-hearts-by-regulating-mito-ros-dependent-oxidation-and-activity-of-ryr
#12
Tae Yun Kim, Radmila Terentyeva, Karim H F Roder, Weiyan Li, Man Liu, Ian Greener, Shanna Hamilton, Iuliia Polina, Kevin R Murphy, Richard T Clements, Samuel C Dudley, Gideon Koren, Bum-Rak Choi, Dmitry Terentyev
Aims: Plasmamembrane small conductance Ca2+-activated K+ (SK) channels were implicated in ventricular arrhythmias in infarcted and failing hearts. Recently, SK channels were detected in the inner mitochondria membrane (IMM) (mSK), and their activation protected from acute ischaemia-reperfusion injury by reducing intracellular levels of reactive oxygen species (ROS). We hypothesized that mSK play an important role in regulating mitochondrial function in chronic cardiac diseases. We investigated the role of mSK channels in Ca2+-dependent ventricular arrhythmia using rat model of cardiac hypertrophy induced by banding of the ascending aorta thoracic aortic banding (TAB)...
March 1, 2017: Cardiovascular Research
https://www.readbyqxmd.com/read/28090449/ultrashort-time-to-echo-magnetic-resonance-techniques-for-the-musculoskeletal-system
#13
REVIEW
Palanan Siriwanarangsun, Sheronda Statum, Reni Biswas, Won C Bae, Christine B Chung
Magnetic resonance (MR) imaging has been widely implemented as a non-invasive modality to investigate musculoskeletal (MSK) tissue disease, injury, and pathology. Advancements in MR sequences provide not only enhanced morphologic contrast for soft tissues, but also quantitative biochemical evaluation. Ultrashort time to echo (UTE) sequence, in particular, enables novel morphologic and quantitative evaluation of previously unseen MSK tissues. By using short minimum echo times (TE) below 1 msec, the UTE sequence can unveil short T2 properties of tissues including the deepest layers of the articular cartilage, cartilaginous endplate at the discovertebral junction, the meniscus, and the cortical bone...
December 2016: Quantitative Imaging in Medicine and Surgery
https://www.readbyqxmd.com/read/28070269/musculoskeletal-diagnostic-ultrasound-imaging-for-thickness-measurement-of-four-principal-muscles-of-the-cervical-spine-a-reliability-and-agreement-study
#14
Cecilie Krage Øverås, Birgitte Lawaetz Myhrvold, Gro Røsok, Eli Magnesen
BACKGROUND: The reliability of musculoskeletal diagnostic ultrasound imaging (MSK-DUSI) for the evaluation of neck musculature has been sparsely documented in the research literature. Until now, research has featured a limited number of subjects and only few studies have tested for both inter- and intra-reliability using appropriate methodology. METHODS: Four examiners conducted an inter- and intra-rater reliability and agreement study. Fifty females with and without neck pain (NP) between the ages of 20-70 were recruited from October 2014 to April 2015...
2017: Chiropractic & Manual Therapies
https://www.readbyqxmd.com/read/28047711/su-f-r-06-traumatic-brachial-plexus-injury-imaging-developing-a-coherent-clinical-protocol-from-literature-review-through-practice
#15
D Wu, E France, J Lambert, J Hinkle
PURPOSE: Medical Physics teams can now play a critical role to help plan and provide studied approaches for traumatic brachial plexus MR imaging (tbpMRI). This is especially important for coordination with uncommon applications, since it is challenging to select the right modality, parameters, and train technologists on the essential components. For this work, we started with a review of the medical literature, performed crossover/volunteer studies to bring tbpMRI to practice with greater image QC and protocol management...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046320/we-fg-206-06-dual-input-tracer-kinetic-modeling-and-its-analog-implementation-for-dynamic-contrast-enhanced-dce-mri-of-malignant-mesothelioma-mpm
#16
S Lee, A Rimner, S Hayes, M Hunt, J Deasy, M Zauderer, V Rusch, N Tyagi
PURPOSE: To use dual-input tracer kinetic modeling of the lung for mapping spatial heterogeneity of various kinetic parameters in malignant MPM METHODS: Six MPM patients received DCE-MRI as part of their radiation therapy simulation scan. 5 patients had the epitheloid subtype of MPM, while one was biphasic. A 3D fast-field echo sequence with TR/TE/Flip angle of 3.62ms/1.69ms/15° was used for DCE-MRI acquisition. The scan was collected for 5 minutes with a temporal resolution of 5ߝ9 seconds depending on the spatial extent of the tumor...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/27999984/is-there-an-added-value-of-t1-weighted-contrast-enhanced-fat-suppressed-spin-echo-mr-sequences-compared-to-stir-sequences-in-mri-of-the-foot-and-ankle
#17
Veronika Zubler, Marco Zanetti, Tobias J Dietrich, Norman Espinosa, Christian W Pfirrmann, Nadja Mamisch-Saupe
OBJECTIVES: To prospectively compare T1-weighted fat-suppressed spin-echo magnetic resonance (MR) sequences after gadolinium application (T1wGdFS) to STIR sequences in patients with acute and chronic foot pain. METHODS: In 51 patients referred for MRI of the foot and ankle, additional transverse and sagittal T1wGdFS sequences were obtained. Two sets of MR images (standard protocol with STIR or T1wGdFS) were analysed. Diagnosis, diagnostic confidence, and localization of the abnormality were noted...
December 20, 2016: European Radiology
https://www.readbyqxmd.com/read/27986513/fixed-flexion-knee-radiography-using-a-new-positioning-device-produced-highly-repeatable-measurements-of-joint-space-width-elsa-brasil-musculoskeletal-study-elsa-brasil-msk
#18
Rosa Weiss Telles, Luciana Costa-Silva, Luciana A C Machado, Rodrigo Citton Padilha Dos Reis, Sandhi Maria Barreto
OBJECTIVE: To describe the performance of a non-fluoroscopic fixed-flexion PA radiographic protocol with a new positioning device, developed for the assessment of knee osteoarthritis (OA) in ELSA-Brasil MSK. MATERIAL AND METHODS: A test-retest design including 19 adults (38 knee images) was conducted. Feasibility of the radiographic protocol was assessed by image quality parameters and presence of radioanatomic alignment according to intermargin distance (IMD) values...
November 26, 2016: Revista Brasileira de Reumatologia
https://www.readbyqxmd.com/read/27870683/increasing-role-of-image-guided-ablation-in-the-treatment-of-musculoskeletal-tumors
#19
REVIEW
Anil Nicholas Kurup, Matthew R Callstrom
In the last decade, percutaneous treatment of musculoskeletal (MSK) tumors has become more established in routine clinical care while also undergoing a number of advancements. Ablative techniques to palliate painful skeletal metastases have gained wide acceptance, while goals for ablation have evolved to include local control of oligometastases and desmoid tumors. Bone consolidation or augmentation is now frequently used in conjunction with or instead of ablation of skeletal tumors to stabilize pathologic fractures or prevent further morbidity that could result from fractures caused by tumor progression...
November 2016: Cancer Journal
https://www.readbyqxmd.com/read/27742026/imaging-of-musculoskeletal-infection
#20
REVIEW
Kevin R Math, Jennifer L Berkowitz, Stephen A Paget, Yoshimi Endo
Diagnostic imaging plays a crucial role in confirming the diagnosis of musculoskeletal (MSK) infection and determining the severity and extent of disease. The clinical diagnosis may be challenging due to the nonspecific presentation of pain and swelling. There are certain features that are pathognomonic for infection. Pre-existing conditions an make diagnosing infection difficult. Prior surgery can create artifacts on advanced imaging modalities such as computed tomography and MRI, obscuring the tissues immediately around the hardware...
November 2016: Rheumatic Diseases Clinics of North America
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