fig 2.

Low-grade tumor: injected dose, 0.1 mmol/kg.

A, Proton density–weighted image (2300/20/1) in a 38-year-old woman with a homogeneous lesion in the left parietal cortex. The tumor (arrow) was proved histologically to be a grade II glioma according to WHO criteria.

B, Contrast-enhanced T1-weighted image (530/20/1) shows no apparent enhancement in the tumor (arrow).

C, rCBV map confirms a low-grade lesion by exhibiting values below that of normal gray matter (arrows). However, at this dose the contrast within the rCBV maps was rated as limited.