Figure 7.
Comparison of abdominal VS-IR versus SS-IR MRA in a subject for protocol (ii). VS-IR MRA with a TI of 700 ms results in excellent artery visualization throughout the entire FOV (a), similar to the results shown in Fig. 6. SS-IR MRA with the same TI results in limited coverage of the abdominal aorta due to insufficient arterial inflow (b). SS-IR with an increased TI of 1200 ms increases the angiographic spatial coverage but only up to the beginning of the iliac arteries and at a cost of slightly increased background signal (c).