Accelerated Time-SLIP Cerebral MR Angiography by Use of Dual Inversion Pulse for Background Suppression

Yoshiyuki Ishimori¹, Masahiko Monma¹, Izumi Anno¹, Tomoko Miyata²

Time-Spatial Labeling Inversion Pulse (time-SLIP) techniques are utilized as a non-contrast MR angiography using arterial spin labeling (ASL). However, it takes double time for subtraction process between on/off of ASL to visualize cerebral angiograms because of high signal of cerebrospinal fluid (CSF). Single acquisition time-SLIP using dual inversion pulse was investigated in the phantom and volunteer study. As a result, both of CSF and brain parenchyma were suppressed enough with appropriate inversion times. Thus cerebral angiograms could be visualized sufficiently. Accelerated time-SLIP MRA will be useful in terms of imaging time and scan plane flexibility compared to time-of-flight MRA.