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Musculoskeletal imaging

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https://www.readbyqxmd.com/read/28091699/musculoskeletal-mri-findings-of-juvenile-localized-scleroderma
#1
Eric P Eutsler, Daniel B Horton, Monica Epelman, Terri Finkel, Lauren W Averill
BACKGROUND: Juvenile localized scleroderma comprises a group of autoimmune conditions often characterized clinically by an area of skin hardening. In addition to superficial changes in the skin and subcutaneous tissues, juvenile localized scleroderma may involve the deep soft tissues, bones and joints, possibly resulting in functional impairment and pain in addition to cosmetic changes. OBJECTIVE: There is literature documenting the spectrum of findings for deep involvement of localized scleroderma (fascia, muscles, tendons, bones and joints) in adults, but there is limited literature for the condition in children...
January 14, 2017: Pediatric Radiology
https://www.readbyqxmd.com/read/28090451/potential-of-pet-mri-for-imaging-of-non-oncologic-musculoskeletal-disease
#2
REVIEW
Feliks Kogan, Audrey P Fan, Garry E Gold
Early detection of musculoskeletal disease leads to improved therapies and patient outcomes, and would benefit greatly from imaging at the cellular and molecular level. As it becomes clear that assessment of multiple tissues and functional processes are often necessary to study the complex pathogenesis of musculoskeletal disorders, the role of multi-modality molecular imaging becomes increasingly important. New positron emission tomography-magnetic resonance imaging (PET-MRI) systems offer to combine high-resolution MRI with simultaneous molecular information from PET to study the multifaceted processes involved in numerous musculoskeletal disorders...
December 2016: Quantitative Imaging in Medicine and Surgery
https://www.readbyqxmd.com/read/28090449/ultrashort-time-to-echo-magnetic-resonance-techniques-for-the-musculoskeletal-system
#3
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/28090448/quantitative-techniques-for-musculoskeletal-mri-at-7-tesla
#4
REVIEW
Neal K Bangerter, Meredith D Taylor, Grayson J Tarbox, Antony J Palmer, Daniel J Park
Whole-body 7 Tesla MRI scanners have been approved solely for research since they appeared on the market over 10 years ago, but may soon be approved for selected clinical neurological and musculoskeletal applications in both the EU and the United States. There has been considerable research work on musculoskeletal applications at 7 Tesla over the past decade, including techniques for ultra-high resolution morphological imaging, 3D T2 and T2* mapping, ultra-short TE applications, diffusion tensor imaging of cartilage, and several techniques for assessing proteoglycan content in cartilage...
December 2016: Quantitative Imaging in Medicine and Surgery
https://www.readbyqxmd.com/read/28090447/quantitative-sodium-magnetic-resonance-imaging-of-cartilage-muscle-and-tendon
#5
REVIEW
Neal K Bangerter, Grayson J Tarbox, Meredith D Taylor, Joshua D Kaggie
Sodium magnetic resonance imaging (MRI), or imaging of the 23Na nucleus, has been under exploration for several decades, and holds promise for potentially revealing additional biochemical information about the health of tissues that cannot currently be obtained from conventional hydrogen (or proton) MRI. This additional information could serve as an important complement to conventional MRI for many applications. However, despite these exciting possibilities, sodium MRI is not yet used routinely in clinical practice, and will likely remain strictly in the domain of exploratory research for the coming decade...
December 2016: Quantitative Imaging in Medicine and Surgery
https://www.readbyqxmd.com/read/28090440/quantitative-musculoskeletal-imaging-biomarkers
#6
Edwin H G Oei
No abstract text is available yet for this article.
December 2016: Quantitative Imaging in Medicine and Surgery
https://www.readbyqxmd.com/read/28087191/alterations-of-brain-activity-in-fibromyalgia-patients
#7
REVIEW
Passakorn Sawaddiruk, Sahattaya Paiboonworachat, Nipon Chattipakorn, Siriporn C Chattipakorn
Fibromyalgia is a chronic pain syndrome, characterized by widespread musculoskeletal pain with diffuse tenderness at multiple tender points. Despite intense investigations, the pathophysiology of fibromyalgia remains elusive. Evidence shows that it could be due to changes in either the peripheral or central nervous system (CNS). For the CNS changes, alterations in the high brain area of fibromyalgia patients have been investigated but the definite mechanisms are still unclear. Magnetic Resonance Imaging (MRI) and Functional Magnetic Resonance (fMRI) have been used to gather evidence regarding the changes of brain morphologies and activities in fibromyalgia patients...
January 10, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28077058/imaging-investigations-before-referral-to-a-sarcoma-center-delay-the-final-diagnosis-of-musculoskeletal-sarcoma
#8
Heidi Buvarp Dyrop, Peter Vedsted, Mathias Rædkjær, Akmal Safwat, Johnny Keller
Background and purpose - The use of point-of-care or local investigations before referral to specialist sarcoma centers as part of a fast-track diagnostic pathway varies, and may affect the time to diagnosis. We wanted to investigate differences in time intervals and proportion of malignancy in patients who were referred after initial diagnostic investigations were performed locally and in patients who were referred without these investigations. Patients and methods - We included 545 consecutive patients who were referred to Aarhus Sarcoma Center for suspected musculoskeletal sarcoma...
January 12, 2017: Acta Orthopaedica
https://www.readbyqxmd.com/read/28076290/tailored-interactive-sequences-for-continuous-mr-image-guided-freehand-biopsies-of-different-organs-in-an-open-system-at-1-0-tesla-t-initial-experience
#9
Florian Streitparth, Christian Althoff, Martin Jonczyk, Felix Guettler, Martin Maurer, Hendrik Rathke, Keno Moritz Sponheuer, Bernd Hamm, Ulf K Teichgräber, Maximilian de Bucourt
OBJECTIVES: To assess the feasibility, image quality, and accuracy of freehand biopsies of liver, bone, muscle, vertebral disc, soft tissue, and other lesions using balanced steady-state free precession (SSFP, balanced fast field echo: bFFE), spoiled and nonspoiled gradient echo (FFE), and turbo spin echo (TSE) sequences for interactive continuous navigation in an open magnetic resonance imaging (MRI) system at 1.0 tesla (T). METHODS: Twenty-six MR-guided biopsies (five liver, five bone, four muscle, four vertebral disc, one lung, one kidney, one suprarenal gland, and five soft or other tissue) were performed in 23 patients in a 1...
January 11, 2017: Biomedizinische Technik. Biomedical Engineering
https://www.readbyqxmd.com/read/28075606/potential-application-of-dual-energy-ct-in-gynecologic-cancer-initial-experience
#10
Ana Paula Benveniste, Silvana de Castro Faria, Gregory Broering, Dhakshina Moorthy Ganeshan, Eric P Tamm, Revathy B Iyer, Priya Bhosale
OBJECTIVE: The purpose of this article is to review the use of dual-energy CT (DECT) in the assessment of gynecologic cancer. CONCLUSION: DECT has the potential to improve diagnostic performance, may improve the ability to differentiate between simple cystic lesions and primary ovarian cancer, and may also improve the detection of musculoskeletal and liver metastases. Additional studies will be needed to determine the direction of future developments and the degree to which DECT will affect the imaging and management of gynecologic cancer...
January 11, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28070842/diagnostic-imaging-and-spending-review-extreme-problems-call-for-extreme-measures
#11
Anna Micaela Ciarrapico, Rossana Ugenti, Lidia Di Minco, Elisabetta Santori, Simone Altobelli, Irene Coco, Silvia D'Onofrio, Giovanni Simonetti
The number of diagnostic imaging tests has increased dramatically over the past decade and about 5 billion diagnostic examinations are performed worldwide each year. According to Health Ministry, Italy, is in second place for the number of CT and MR tests per thousand inhabitants in 2014 with a score of 83.3 (only Germany has a higher score, 95.2) that is a long way off from the European average of 46.5. It has also the highest ratio of magnetic resonances per person with 24,6 machines per million inhabitants, followed only by Greece and Finland...
January 9, 2017: La Radiologia Medica
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
#12
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/28068825/microdose-acquisition-in-adolescent-leg-length-discrepancy-using-a-low-dose-biplane-imaging-system
#13
Janni Jensen, Bo R Mussmann, John Hjarbæk, Zaid Al-Aubaidi, Niels W Pedersen, Oke Gerke, Trine Torfing
Background Children with leg length discrepancy often undergo repeat imaging. Therefore, every effort to reduce radiation dose is important. Using low dose preview images and noise reduction software rather than diagnostic images for length measurements might contribute to reducing dose. Purpose To compare leg length measurements performed on diagnostic images and low dose preview images both acquired using a low-dose bi-planar imaging system. Material and Methods Preview and diagnostic images from 22 patients were retrospectively collected (14 girls, 8 boys; mean age, 12...
January 1, 2017: Acta Radiologica
https://www.readbyqxmd.com/read/28061547/comparison-of-magnetic-resonance-imaging-and-stress-radiographs-in-the-evaluation-of-chronic-lateral-ankle-instability
#14
Scott Jolman, Justin Robbins, Laura Lewis, Melissa Wilkes, Paul Ryan
BACKGROUND: In patients who develop chronic ankle instability, clinicians often obtain magnetic resonance imaging (MRI) as part of the evaluation prior to operative referral. The purpose of this study was to analyze the diagnostic efficacy of MRI in the diagnosis of chronic lateral ankle instability. Our hypothesis was that magnetic resonance imaging would not be a specific diagnostic tool in the evaluation of chronic lateral ankle instability. MATERIALS AND METHODS: A retrospective chart review of 187 consecutive patients (190 ankles) was performed...
January 1, 2017: Foot & Ankle International
https://www.readbyqxmd.com/read/28060270/building-finite-element-models-to-investigate-zebrafish-jaw-biomechanics
#15
Lucy H Brunt, Karen A Roddy, Emily J Rayfield, Chrissy L Hammond
Skeletal morphogenesis occurs through tightly regulated cell behaviors during development; many cell types alter their behavior in response to mechanical strain. Skeletal joints are subjected to dynamic mechanical loading. Finite element analysis (FEA) is a computational method, frequently used in engineering that can predict how a material or structure will respond to mechanical input. By dividing a whole system (in this case the zebrafish jaw skeleton) into a mesh of smaller 'finite elements', FEA can be used to calculate the mechanical response of the structure to external loads...
December 3, 2016: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28060123/whole-body-mri-virtual-autopsy-using-diffusion-weighted-imaging-with-background-suppression-dwibs-at-3-t-in-a-child-succumbing-to-chordoma
#16
Savvas Andronikou, Marnie L Kemp, Michelle Meiring
BACKGROUND: We report the use of diffusion-weighted imaging with background suppression (DWIBS) in pediatric virtual magnetic resonance imaging (MRI) autopsy of a child who succumbed to chordoma. CASE DESCRIPTION: A 10-year-old girl who succumbed to relapse of a chordoma underwent whole-body virtual MRI autopsy 12 hours postmortem with short Tau inversion recovery (STIR) and DWIBS on 3 T, which demonstrated the primary mass, local and cardiac invasion, and metastatic disease to the thorax, abdomen, head/neck, and musculoskeletal system...
January 5, 2017: Journal of Pediatric Hematology/oncology
https://www.readbyqxmd.com/read/28050816/-knuckle-cracking-can-blinded-observers-detect-changes-with-physical-examination-and-sonography
#17
Robert D Boutin, Anuj P Netto, David Nakamura, Cyrus Bateni, Robert M Szabo, Michael Cronan, Brent Foster, William R Barfield, J Anthony Seibert, Abhijit J Chaudhari
BACKGROUND: Voluntary knuckle cracking is a common habit, with a reported prevalence of 25% to 45%. Habitual knuckle cracking also is a frequent source of questions for physicians, and the largest study to date reported an association with functional hand impairments. QUESTIONS/PURPOSES: (1) When compared with subjects who are not habitual knuckle crackers, do habitual knuckle crackers have greater QuickDASH scores, swelling, weakness, joint laxity, or ROM? (2) In subjects who crack their knuckles, does cracking immediately increase ROM? (3) What are the characteristic sonographic findings in joints that crack? METHODS: A prospective, institutional review board-approved study was performed on 400 metacarpophalangeal joints (MPJs) in 40 asymptomatic adult subjects...
January 3, 2017: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/28050574/a-validation-study-of-a-novel-3-dimensional-mri-modeling-technique-to-identify-the-anatomic-insertions-of-the-anterior-cruciate-ligament
#18
Catherine Hui, Yeli Pi, Vimarsha Swami, Myles Mabee, Jacob L Jaremko
BACKGROUND: Anatomic single bundle anterior cruciate ligament (ACL) reconstruction is the current gold standard in ACL reconstructive surgery. However, placement of femoral and tibial tunnels at the anatomic center of the ACL insertion sites can be difficult intraoperatively. We developed a "virtual arthroscopy" program that allows users to identify ACL insertions on preoperative knee magnetic resonance images (MRIs) and generates a 3-dimensional (3D) bone model that matches the arthroscopic view to help guide intraoperative tunnel placement...
December 2016: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28046867/su-f-p-06-moving-from-computed-radiography-to-digital-radiography-a-collaborative-approach-to-improve-image-quality
#19
D Sandoval, D Valenti, T Bateman, V Norris, G Mlady, R Selwyn
PURPOSE: To bring together radiologists, technologists, and physicists to utilize post-processing techniques in digital radiography (DR) in order to optimize image acquisition and improve image quality. METHODS: Sub-optimal images acquired on a new General Electric (GE) DR system were flagged for follow-up by radiologists and reviewed by technologists and medical physicists. Various exam types from adult musculoskeletal (n=35), adult chest (n=4), and pediatric (n=7) were chosen for review...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28031726/complex-regional-pain-syndrome-medical-and-legal-ramifications-of-clinical-variability-and-experience-and-perspective-of-a-practicing-clinician
#20
R P Lazaro
OBJECTIVE: The aim of this study was to demonstrate the ramifications of clinical variability of complex regional pain syndrome (CRPS) and how they can affect the various aspects of this condition, favorably or unfavorably, for both patients and participating medical and legal professionals. METHODS: Twelve patients diagnosed with CRPS at different times in the past 25 years were followed up, and their signs and symptoms were reviewed for variability. None had preexisting or ongoing medical disorders and prior injury to the peripheral nerves or musculoskeletal tissues...
2017: Journal of Pain Research
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