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Evaluation of MRI characterisation of histopathologically matched lymph nodes and other mesorectal nodal structures in rectal cancer.
Eur Radiol
January 2025
Department of Diagnostics and Intervention, Diagnostic Radiology, Umeå University, Umeå, Sweden.
Purpose: To evaluate current MRI-based criteria for malignancy in mesorectal nodal structures in rectal cancer.
Method: Mesorectal nodal structures identified on baseline MRI as lymph nodes were anatomically compared to their corresponding structures histopathologically, reported as lymph nodes, tumour deposits or extramural venous invasion. All anatomically matched nodal structures from patients with primary surgery and all malignant nodal structures from patients with neoadjuvant treatment were included.
Modeling of magnetic vestibular stimulation experienced during high-field clinical MRI.
Commun Med (Lond)
January 2025
Department of Otolaryngology-Head and Neck Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
Background: High-field magnetic resonance imaging (MRI) is a powerful diagnostic tool but can induce unintended physiological effects, such as nystagmus and dizziness, potentially compromising the comfort and safety of individuals undergoing imaging. These effects likely result from the Lorentz force, which arises from the interaction between the MRI's static magnetic field and electrical currents in the inner ear. Yet, the Lorentz force hypothesis fails to explain observed eye movement patterns in healthy adults fully.
View Article and Find Full Text PDFDiagnostic accuracy of 99Tc-HDP SPECT/CT and MRI for foot and ankle osteoarthritis (ProSPECT-trial): Study protocol.
Foot Ankle Surg
January 2025
Department of Orthopaedic Surgery, Martini Ziekenhuis, Groningen, the Netherlands.
Background: Accurate localisation of symptomatic osteoarthritic (OA) lesions in the midfoot, hindfoot and ankle remains challenging due to their complex anatomy. Conventional radiographs have limitations in complex areas or overlapping structures. SPECT/CT has shown promising results in detecting symptomatic OA lesions, yet its superiority over MRI, the current standard for soft tissue pathology, remains uncertain.
View Article and Find Full Text PDFMesenchymal chondrosarcoma of maxilla misdiagnosed as a benign fibrous lesion: A rare case report from Syria.
Int J Surg Case Rep
January 2025
Faculty of Medicine, University of Damascus, Damascus, Syrian Arab Republic.
Introduction: Mesenchymal chondrosarcoma (MC) is a high-grade variant of chondrosarcoma, essentially composed of poorly differentiated spindle cells interspersed with areas of cartilage or chondroid matrix. MC is extremely rare; it only accounts for 0.1 % of head and neck tumors and for only 1 % of all chondrosarcomas (CSs).
View Article and Find Full Text PDFUltrasound-guided minimally invasive thread release of carpal tunnel: a cadaveric study.
Radiol Med
January 2025
Neuromuscular Imaging Ordinationszentrum Döbling, Heiligenstädter Straße 46-48, 1190, Vienna, Austria.
Purpose: Thread release of the carpal tunnel is the most recent of several minimally invasive ultrasound-guided carpal tunnel release techniques. The purpose of this article is to provide a step-by-step guide for minimally invasive, ultrasound-guided thread release of the carpal tunnel focused on transecting the transverse carpal ligament with minimal damage to the palmar aponeurosis on anatomical specimens.
Methods: Fifteen ultrasound-guided carpal tunnel thread releases were performed on the wrists of soft-embalmed anatomical specimens, which were dissected immediately after the intervention.
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