BACKGROUND MRI changes due to status epilepticus (SE) often suggest a combination of cytotoxic and vasogenic edema, but it is unclear why only certain patients have MRI changes. OBJECTIVES To determine the frequency of MRI changes due to SE and the associated patient characteristics. METHODS We reviewed records for demographics, medical history, and MRI changes attributable to seizures of a...

The clinical diagnosis of transient ischemic attack (TIA) or minor stroke is highly subjective, especially if the brain imaging does not reveal any evidence of ischemic lesion. Herein, I report a case of small vessel TIA and another case of lacunar infarction in which the ischemic lesions were detected with the perfusion-weighted magnetic resonance imaging (MRI). A 76-year-old woman presented w...

Introduction: Visceral larva migrans (VLM) is an uncommon parasitic infection most commonly caused by Toxocara canis and Toxocara cati. Imaging features of hepatic VLM on contrast enhanced computed tomography (CECT) include presence of small, single or multiple (usually less than two cms in diameter) hypovascular eosinophilic abscesses seen enhancing only on portal venous phase (PVP) on triple ...

Anatomical MRI studies at 7T have demonstrated the ability to provide high-quality images of human tissue in vivo. However, diffusion-weighted imaging at 7T is limited by the increased level of artifact associated with standard, single-shot, echo-planar imaging, even when parallel imaging techniques such as generalized autocalibrating partially parallel acquisitions (GRAPPA) are used to reduce ...

We describe the computed tomographic (CT) and magnetic resonance imaging (MRI) features of a very rare renal neoplasm, a glomus tumor. Our patient was a 68-year-old woman with a history of high grade T1 stage bladder cancer, status post intravesical Bacillus Calmette-Guérin (BCG) therapy and left ureteral stent placement, who presented for routine follow-up imaging evaluation of the urothelial ...

BACKGROUND AND PURPOSE Diffusion-perfusion MRI in patients with anterior circulation occlusions has demonstrated salvage of threatened tissue after thrombolytic therapy. Similar studies have not been reported with posterior circulation occlusions. METHODS Patients with acute basilar artery occlusion treated with intra-arterial thrombolytics were studied with multimodal MRI before treatment, s...

BACKGROUND AND PURPOSE Intracerebral hemorrhage represents the most feared complication of treatment with intravenous tissue plasminogen activator. We studied whether perfusion-weighted imaging and diffusion-weighted imaging has the potential to identify patients at risk of severe intracerebral hemorrhage after treatment with intravenous tissue plasminogen activator. METHODS We analyzed data ...

OBJECTIVE MRI would be a valuable noninvasive diagnostic tool to study plaque-associated thrombi. We defined the imaging characteristics of these thrombi, composed primarily of platelets and fibrin, and distinguished them clearly from the vessel lumen and underlying atherosclerotic plaque in an animal model of plaque rupture. METHODS AND RESULTS After triggering plaque rupture in New Zealand ...

Methanol is a toxic substance with extremely devastating effects upon exposure. The case described suffered from such kind of poisoning. MRI brain demonstrated necrosis bilaterally in the Putamen areas which is a classic hallmark finding. Additional Diffusion weighted imaging showed abnormal signal bilaterally in the putamen areas along with Diffusion positive bilateral lesions (possibly infarc...