Abstract
Purpose: To evaluate the usefulness of the “Motion Correction” function of the dual volume-3D-volume-rendering technique (DV-3D-VRT) in follow-up digital subtraction angiography (DSA) of intracranial coiled aneurysms. Materials and Methods: This study used data collected from consecutive, follow-up DSAs after the coiling of 64 intracranial aneurysms in 59 patients. We performed subtracted 3D-rotational angiographies (3D-RAs) on all DSAs and obtained DV-3D-VRT images. We then assessed recurrence using DV-3D-VRT images with and without the motion correction functions (MC(+) vs. MC(-)) and observed which method showed better agreement with the reference assessment (using a combination of 2D DSA and TOF MRA images). Results: The recurrence of MC(-) DV-3D-VRT images showed 51.6% (33/64) agreement with the reference assessment, whereas the MC(+) DV-3D-VRT images showed 78.1% (50/64) (P = 0.035, McNemar test). Conclusion: Motion correction is a useful complementary imaging technique in evaluating aneurysm recurrence after endovascular embolization. MC(+) DV-3D-VRT image showed higher inter-observer agreement than MC(-) DV-3D-VRT.
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1 Department of Neurology, Ulsan University Hospital, University of Ulsan College of Medicine, 877 Bangeojin Sunhwando-ro, Dong-gu, Ulsan
2 Department of Radiology, Ulsan University Hospital, University of Ulsan College of Medicine, 877 Bangeojin Sunhwando-ro, Dong-gu, Ulsan
3 Department of Neurosurgery, Ulsan University Hospital, University of Ulsan College of Medicine, 877 Bangeojin Sunhwando-ro, Dong-gu, Ulsan