fig 3.

Low-grade tumor: injected dose, 0.2 mmol/kg.

A, T2-weighted image (2300/85/1) in a 31-year-old man shows a mass in the right frontal cortex with an appearance not unlike that of a low-grade intraaxial brain tumor.

B, Contrast-enhanced T1-weighted image (530/20/1) shows a tumor without contrast enhancement (arrow).

C, rCBV map shows low values in the tumor (arrows), confirmed to be a WHO grade II glioma. The contrast effect and the image quality of the rCBV map were graded superior to that in figure 2.