• Oded Goren, George Bourdages, Clemens M Schirmer, Gregory Weiner, Shamsher S Dalal, and Christoph J Griessenauer.
• Department of Neurosurgery, Geisinger, Danville, Pennsylvania, USA. Electronic address: ogoren@geisinger.edu.
• World Neurosurg. 2020 Sep 1; 141: e736-e742.

ObjectiveIntraoperative imaging is critical in cerebrovascular surgery to assess the technical success of the operation. This case series aimed to evaluate the safety and efficacy of 3-dimensional rotational angiogram (3D-RA) in addition to 2-dimensional intraoperative angiography (2D-IOA) during cerebrovascular surgery in the hybrid operating room.MethodsAll consecutive patients who underwent open cerebrovascular surgery and intraoperative 2D-IOA with 3D-RA in a hybrid operating room at 2 academic centers between August 2018 and December 2019 were identified from a prospectively maintained institutional database. Medical charts and operative videos including intraoperative angiography were reviewed, and clinical and angiographic outcomes assessed.ResultsA total of 40 cerebrovascular surgeries in 39 patients (mean age, 53 ± 13 years; 51% female) were carried out with the addition of 3D-RA to 2D-IOA in the hybrid operating room. After 3D-RA in addition to 2D-IOA, 1 (2.5%) surgical alteration occurred in an aneurysm clipping. Other procedures were not altered with the addition of 3D-RA to 2D-IOA. There were no complications from the addition of 3D-RA to 2D-IOA.ConclusionsUsing a combination of 3D-RA and 2D-IOA in the hybrid operating room may enhance the likelihood of achieving an optimal result when employing microsurgical cerebrovascular surgery and avoid unanticipated incomplete outcomes, complications, and returns to the operating room. Whereas the addition of 3D-RA elucidated residual aneurysm not otherwise visualized on the 2D-IOA, in other cerebrovascular procedures studied, there was no additional value of the 3D-RA over the 2D-IOA.Copyright © 2020 Elsevier Inc. All rights reserved.

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