Evaluating the diagnostic ability of treatment response assessment maps (TRAMs)/contrast clearance analysis (CCA) in predicting the presence of active brain tumors.

Introduction: Brain tumors pose significant diagnostic and therapeutic challenges due to their diverse treatment responses and complex imaging characteristics. Traditional MRI techniques often struggle to differentiate between tumor recurrence and post-treatment changes such as pseudoprogression and necrosis, highlighting the need for more accurate diagnostic tools.

Material And Methods: This retrospective study conducted at a single tertiary care center and evaluated the diagnostic efficacy of Treatment Response Assessment Maps (TRAMs), also known as Contrast Clearance Analysis (CCA), in distinguishing between tumor recurrence and post-treatment changes in patients who underwent initial treatment for brain tumors.

Imaging characteristics associated with clinical outcomes in posterior reversible encephalopathy syndrome.

Purpose: Posterior reversible encephalopathy syndrome (PRES) is a disorder of cerebrovascular autoregulation that can result in brain edema, hemorrhage, and infarction. We sought to investigate whether certain imaging characteristics in PRES are associated with clinically significant patient outcomes.

Methods: We retrospectively reviewed all cases of PRES occurring between 2008 and 2014 at two major academic medical centers.

West Nile Virus Central Nervous System Infection in Patients Treated With Rituximab: Implications for Diagnosis and Prognosis, With a Review of Literature.

The spectrum of West Nile virus (WNV) infection continues to be elucidated. Many cases of WNV are asymptomatic; however, in immunocompromised patients, symptoms are more likely to be severe. We describe fatal WNV central nervous system disease in lymphoma patients who received rituximab, blunting the inflammatory response and complicating diagnosis.

Variations in atherosclerosis and remodeling patterns in aorta and carotids.

Background: Atherosclerosis is a progressive disease that causes vascular remodeling that can be positive or negative. The evolution of arterial wall thickening and changes in lumen size under current "standard of care" in different arterial beds is unclear. The purpose of this study was to examine arterial remodeling and progression/regression of atherosclerosis in aorta and carotid arteries of individuals at risk for atherosclerosis normalized over a 1-year period.

Comparison of 3D-diffusion-prepared segmented steady-state free precession and 2D fast spin echo imaging of femoral artery atherosclerosis.

Magnetic resonance (MR) imaging is a promising modality for the in vivo detection and characterization of atherosclerotic lesions in peripheral arteries. 2D imaging techniques for evaluation of peripheral artery disease (PAD) suffer from poor spatial coverage and have long scan times. The purpose of this study was to compare a diffusion prepared dark blood 3D steady state free precession (3D-DP-SSFP) sequence for evaluating atherosclerotic plaque burden in inguinal and thigh segments of the femoral artery and comparing the results obtained with 2D turbo spin echo (2D-TSE) techniques.

Scapho-capitate Syndrome Variant: 180-Degree Rotation of the Proximal Capitate Fragment Without Identifiable Scaphoid Fracture.

Scapho-capitate fractures, also known as Fenton's Syndrome, occur very rarely. We report a case of a variant capitate fracture with a 180 degree rotation of the proximal fragment and no identifiable scaphoid fracture. Prompt identification of this fracture is necessary to minimize complications such as avascular necrosis.