40 Flow Effects: Fast and Slow Flow

Figure 40.1 presents images from two separate scans in the same patient, varying only in the number of slices acquired. In Fig. 40.1A, images were acquired on both sides of the slice illustrated, whereas in Fig. 40.1B, fewer slices were acquired. More specifically, the scan illustrated in Fig. 40.1B is that from the outermost slice. Thus despite identical scan technique in terms of T1-weighting, Fig. 40.1B illustrates inflow effects (flow-related enhancement) in the cortical veins (arrows) draining into the sagittal sinus, which are absent in Fig. 40.1A.

Related posts:

MR Safety: Static Magnetic Field Spin Echo Imaging Echo Planar Imaging Abdomen: Motion Correction Specific Absorption Rate (SAR) Cardiac Function

Stay updated, free articles. Join our Telegram channel

Join