Figure 3
From: First noninvasive thermal ablation of a brain tumor with MR-guided focusedultrasound
Pre- (AA-AC) and post-interventional (AD-AF) MR findings. Axialdiffusion weighted single-shot echoplanar imaging (A, D)(TR = 4,900 ms; TE = 130 ms; flipangle = 90°; acquisitionmatrix = 192 × 192 pixels, sectionthickness = 5 mm; spacing between slices: 6.5 mm; diffusiongradient approximately 0 and 1,000 cm2/s), corresponding ADC map(B, E), and axial flow-compensated 3D gradient-echo image (C,F) (TR = 49 ms; TE = 40 ms; flipangle = 15°; acquisitionmatrix = 224 × 256 pixels, sectionthickness = 2.0 mm) illustrate a discrete intratumoral diffusionrestriction in contrast to the notable intratumoral susceptibility in thepost-interventional follow-up after 5 days.