Methodological considerations in region of interest definitions for paraspinal muscles in axial MRIs of the lumbar spine

Magnetic Resonance Imaging (MRI) is commonly used to assess the health of the lumbar spine and supporting structures. Studies have suggested that fatty infiltration of the posterior lumbar muscles is important...
Source: BMC Musculoskeletal Disorders - Category: Orthopaedics Authors: Tags: Research article Source Type: research

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Publication date: Available online 27 January 2020Source: Best Practice &Research Clinical RheumatologyAuthor(s): Lykke Midtbøll Ørnbjerg, Mikkel ØstergaardAbstractStructural damage progression in patients with established rheumatoid arthritis (RA) has traditionally been assessed by conventional radiography (CR), which has proven its value in clinical practice and clinical trials over the past decades. The most prominent abnormalities visualized by CR in RA patients are erosions as a consequence of bone destruction and joint space narrowing (JSN) as a consequence of cartilage damage. Several valida...
Source: Best Practice and Research Clinical Rheumatology - Category: Rheumatology Source Type: research
Publication date: Available online 27 January 2020Source: Diagnostic and Interventional ImagingAuthor(s): A. Hamard, R. Burns, A. Miquel, J.M. Sverzut, V. Chicheportiche, M. Wybier, V. BoussonAbstractDactylitis refers to a global swelling of a finger or a toe giving it a clinical sausage-shape presentation. It is an extremely suggestive symptom as it guides the rheumatologist towards a shortlist of diagnoses. However, radiologists are less familiar with dactylitis. The aim of this review is to detail and illustrate the main causes of dactylitis using standard X-ray imaging, ultrasound, computed tomography and magnetic reso...
Source: Diagnostic and Interventional Imaging - Category: Radiology Source Type: research
Conclusion: This study confirm that EMA are common in all MS phenotypes, even at the earliest stages. VOG can be useful to detect demyelinating process at preclinical stage by highlighting subclinical EMA even in absence of characteristic lesions visible on MRI.
Source: Multiple Sclerosis and Related Disorders - Category: Neurology Source Type: research
CONCLUSION: LncRNA GAC AT3 is associated with poor prognosis of breast cancer, preoperative MRI perfusion-related diffusion (D) reduction, and elevated perfusion fraction (f). After targeting CIR-497, LncRNA GACAT3 promotes the progression of breast cancer by down- regulating Caspase 9 and up-regulating Bcl-2. PMID: 31983109 [PubMed - in process]
Source: Journal of B.U.ON. - Category: Cancer & Oncology Tags: J BUON Source Type: research
Conclusion: The diagnosis of CMTX1 should be considered, even in female patients, when the disease presents with recurrent stroke-like symptoms and abnormal white matter signals on MRI. The puerperium after delivery may be one of the precipitating factors.
Source: Frontiers in Neurology - Category: Neurology Source Type: research
Abstract Cardiovascular magnetic resonance imaging (CMR) is a comprehensive and versatile diagnostic and prognostic imaging modality that plays an increasingly important role in management of patients with cardiovascular disease. In this review, we discuss CMR applications in nonischemic cardiomyopathy, ischemic heart disease, arrhythmias, right ventricular diseases, and valvular heart disease. We emphasize the quantitative nature of CMR in current practice, from volumes, function, myocardial strain analysis, and late gadolinium enhancement to parametric mapping, including T1, T2, and T2* relaxation times and extr...
Source: Annual Review of Medicine - Category: General Medicine Authors: Tags: Annu Rev Med Source Type: research
We present an isolated large (yet radiographically subtle) arcuate sign with associated findings more readily demonstrated upon subsequent magnetic resonance imaging.
Source: The Journal of Emergency Medicine - Category: Emergency Medicine Authors: Tags: Visual Diagnosis in Emergency Medicine Source Type: research
We present the case of an 8-month-old boy with the repeated recurrence of vesicles from the time of birth and who subsequently manifested psychomotor developmental delay. We retrospectively diagnosed the patient with congenital herpes simplex virus (HSV) infection. Computed tomography showed multiple calcifications in the periventricular white matter and thalami. The bilateral deep white matter showed an abnormally high signal intensity on T2-weighted magnetic resonance imaging. The patient required consecutive, suppressive therapy with valacyclovir to prevent the repeated recurrence of vesicles.
Source: Brain and Development - Category: Neurology Authors: Tags: Case Report Source Type: research
ConclusionCA of drug ‐refractory VT in CS is effective, often requiring the epicardial approach. Incomplete success and recurrence of VT were higher in the inflammatory phase of the disease.
Source: Journal of Cardiovascular Electrophysiology - Category: Cardiology Authors: Tags: ORIGINAL ARTICLE Source Type: research
AbstractBackgroundThe purpose of this study is to investigate the performance of dual-layer detector spectral CT for iron deposition compared to magnetic resonance imaging (MRI) T2* imaging.MethodsThirty-one patients with a clinical history of myelodysplastic syndromes and aplastic anemia underwent liver and cardiac T2*-weighted unenhanced MRI on a three-tesla MRI scanner, and underwent unenhanced CT scan laterally on a 128-row spectral detector CT. R2* values of the liver, septal muscle, and paraspinal muscle were calculated. Attenuation differences ( ΔH) in the liver and myocardium were calculated between the lower...
Source: Japanese Journal of Radiology - Category: Radiology Source Type: research
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