Diffusion-weighted MRI (DWI) by means of apparent diffusion coefficient (ADC) calculation can be used for in vivo quantification of the combined effects of capillary perfusion and diffusion. With the advent of echoplanar imaging (EPI), DWI of the abdomen has become possible with fast imaging times minimizing the effect of gross physiologic motion from respiration and cardiac movement. Several s...

Epidermoid cyst is a rare benign tumor, which accounts for 1-2% of all testicular tumors (1). It can be cured by organ preserving surgery. We experienced a case of pathologically confirmed testicular epidermoid cyst, which showed typical onion ring appearance on ultrasonography (US) and high signal intensity with internal alternating low signal intensity patterns on T2-weighted magnetic resonan...

AIM To elucidate the clinical, magnetic resonance imaging (MRI), pathological features of these lesions and asses the incremental value of diffusion-weighted imaging (DWI) in diagnosing them. METHODS Fifteen consecutive patients (11 females and 4 males; mean age 40.93 years; age range 13-63 years) with cavernous sinus hemangiomas (CSH) who underwent examination between November 2008 and May 2...

A 67-year-old man with a history of prostatic hypertrophy developed behavioral anomalies and a fever. At admission, diffusion-weighted brain magnetic resonance imaging (MRI) indicated a high-intensity signal lesion on both sides of the cerebral hemisphere. Immediately after hospitalization, he developed paralysis of the left side of the body. Diffusion-weighted MRI indicated hemorrhagic changes...

The use of second-order tensors for the modeling of data from Diffusion Weighted Magnetic Resonance Imaging (DW-MRI) is limited by their inability to represent more than one dominant direction in cases of crossing fiber bundles or partial voluming. Higher-order tensors have been used in High Angular Resolution Diffusion Imaging (HARDI) to overcome these problems, but their larger number of para...