July 2014

Introduction

Diffusion Imaging to Characterize Tumor Cellularity

Asim Choudhri

Asim Choudhri

Diffusion-weighted imaging rose to prominence due to its ability to rapidly detect early signs of cellular metabolic shutdown (cytotoxic edema), and it quickly became the gold standard for the detection of acute cerebral infarction. While DWI is typically evaluated in a qualitative manner, quantified calibrated information can … more »

Head & Neck

Apparent Diffusion Coefficient Mapping of Salivary Gland Tumors: Prediction of the Benignancy and Malignancy

Sato Eida

Sato Eida

Preoperative prediction of tumor malignancy is clinically very important, because this information strongly influences the surgical plan. Diffusion-weighted imaging is very sensitive to biophysical abnormalities associated with pathologic changes; in this regard, apparent diffusion coefficient measurement has been used to diagnose benign and malignant salivary gland tumors. … more »

Brain

Distinguishing between Germinomas and Pineal Cell Tumors on MR Imaging

Netsiri Dumrongpisutikul

Netsiri Dumrongpisutikul

Pineal region tumors constitute 1% of all intracranial tumors.1 Among the various histologic types of pineal tumors, the germ cell tumors are more frequent than the pineal cell origin tumors.2 Our research aimed to differentiate between germinomas and pineal cell tumors based on ADC values and … more »