Vessel-Selective 4D-MRA Using Superselective Pseudocontinuous Arterial Spin-Labeling with Keyhole and View-Sharing for Visualizing Intracranial Dural AVFs

• DOI: 10.3174/ajnr.a7426
• Publication Date: 2022-03-03T19:00:10Z
• Authors: O. Togao; M. Obara; K. Kikuchi; M. Helle; K. Arimura; A. Nishimura; T. Wada; H. Murazaki; M. Van Cauteren; A. Hiwatashi; K. Ishigami
• Keywords: Keyhole; Fast spin echo

<h3>BACKGROUND AND PURPOSE:</h3> An accurate assessment of the hemodynamics an intracranial dural AVF is necessary for treatment planning. We aimed to investigate utility 4D-MRA based on superselective pseudocontinuous arterial spin-labeling with CENTRA-keyhole and view-sharing (4D-S-PACK) vessel-selective visualization AVFs. <h3>MATERIALS METHODS:</h3> retrospectively analyzed images 21 patients (12 men 9 women; mean age, 62.2 [SD,19.2] years) AVFs, each whom was imaged DSA, 4D-S-PACK, nonselective combined (4D-PACK). The shunt location, venous drainage patterns, feeding artery identification, Borden classification were evaluated by 2 observers using both MRA methods separate occasions. Vessel selectivity 4D-S-PACK. <h3>RESULTS:</h3> Shunt locations correctly in all methods. With 1 detected 76 (80.0%, <i>P </i>&lt; .001) 73 (76.8%, arteries 95 identified DSA but only 39 (41.1%) 46 (48.4%) 4D-PACK, respectively. Both 10 11 cortical reflux confirmed 4D-S-PACK 4D-PACK (sensitivity = 90.9%, specificity 90.9% method), they made classifications 20 (95.2%) Of 84 vessel territories examined, graded 3 or 4 (91.2%) 66 (88.0%) 2, <h3>CONCLUSIONS:</h3> useful identification AVFs can be a noninvasive clinical tool.