Figure 2.
HRBV images from a subset of the multi-echo sequence are shown to demonstrate the signal cancellation for three different TEs (17.5, 28.7, and 39.9 msec for images from left to right in each row) pre-contrast (row a) and three time points post-contrast (rows b–d). Images in row b were collected immediately after the injection of contrast agent, row c 10 minutes later, and row d 20minutes later. There is little change in venous vessel visualization during the first 30 minutes after the injection of contrast agent.