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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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