Nishimura D G, Macovski A, Pauly J M, Conolly S M
Magn Reson Med. 1987 Feb;4(2):193-202. doi: 10.1002/mrm.1910040214.
A modified inversion-recovery sequence is introduced which performs subtraction angiography by varying time-of-flight effects of blood flowing into an imaged slab. The selective 180 degrees excitation inverts different regions between measurements to isolate arterial and/or venous blood. On normal human subjects, high-resolution carotid artery angiograms have been obtained.
