Table 2.

Normalized Cerebral Blood Volume (nCBV) and Apparent Diffusion Coefficient (ADC) Histogram Parameters in True Progression Group and Pseudoprogression Group

Note.- Values are expressed as mean ± standard deviation. C95, C90 and C70 refer to 95th, 90th and 70th percentile points of cumulative nCBV histogram, respectively. ROI volumes are expressed as cubic centimeters (cm³). ADC (b = 1000 sec/mm₂) measurements are expressed as × 10^-6 square millimeters per second. C5 refers to 5th percentile point of cumulative ADC histogram (Xth percentile point is point at which X% of voxel values that form histogram are found to left in histogram). ^*Significant difference between two groups (p < 0.05), ^†Difference between two groups was evaluated using unpaired Student's t test. ROI = region of interest