Abstract #1080

Vessel-selective 4D-MRA Using Superselective pCASL Combined with CENTRA-Keyhole (4D-S-PACK) for Intracranial Dural Arteriovenous Fistulas

Osamu Togao¹, Akio Hiwatashi², Makoto Obara³, Michael Helle⁴, Kazufumi Kikuchi¹, Daichi Momosaka¹, Yoshitomo Kikuchi¹, Tatsuhiro Wada⁵, Hiroo Murazaki⁵, and Marc Van Cauteren³

¹Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan, ²Department of Molecular Imaging & Diagnosis, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan, ³Philips Japan, Tokyo, Japan, ⁴Philips Research, Hamburg, Germany, ⁵Division of Radiology, Department of Medical Technology, Kyushu University Hospital, Fukuoka, Japan

In this study, we demonstrated the ability of 4D-S-PACK (4D-MRA based on superselective pCASL with CENTRA-keyhole and view-sharing) to visualize intracranial DAVFs. 4D-S-PACK enables a time-resolved and vessel-selective angiography within 5 minutes without a use of contrast agents. It was shown that good vessel selectivity for the internal and external carotid arteries was achieved with 4D-S-PACK. 4D-S-PACK enabled accurate identification of feeding arteries. Although the superselective labelling in 4D-S-PACK caused a slight reduction in CNR, compared to full labelling in 4D-PACK, this was acceptable since visualization was well preserved. 4D-PACK can be a non-invasive clinical tool for assessing intracranial DAVFs.

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