Abstract #4611

Effects of vascular territories on the efficiency of DANTE preparation pulse for ASL

Shota Ishida¹, Hirohiko Kimura², Naoyuki Takei³, Yasuhiro Fujiwara⁴, Tsuyoshi Matsuda⁵, and Nobuyuki Kosaka²

¹Department of Radiological Technology, Faculty of medical sciences, Kyoto College of Medical Science, Nantan, Japan, ²Department of Radiology, Faculty of Medical Sciences, University of Fukui, Eiheiji, Japan, ³GE Healthcare, Tokyo, Japan, ⁴Department of Medical Image Sciences, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan, ⁵Division of Ultra-high Field MRI, Institute for Biomedical Science, Iwate Medical University, Shiwa-gun, Japan

Synopsis

This study aimed to assess whether the efficiency of DANTE, a vascular suppression in ASL, is affected by vascular territories. CBF, transit times (TT), and their rates of change were determined in nine vascular territories from the proximal to distal regions. Although CBF reduction rates were not different among the territories, TT extension rates were lower in the distal region than in other regions. No correlation was observed between TT extension and CBF reduction rates. DANTE efficiency is not affected by transit time or vascular territories. Homogenous vascular suppression effects could be obtained by DANTE-ASL.

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