RT Journal Article SR Electronic T1 Surgical or Endovascular Treatment of MCA Aneurysms: An Agreement Study JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP 1437 OP 1444 DO 10.3174/ajnr.A7648 VO 43 IS 10 A1 W. Boisseau A1 T.E. Darsaut A1 R. Fahed A1 J.M. Findlay A1 R. Bourcier A1 G. Charbonnier A1 S. Smajda A1 J. Ognard A1 D. Roy A1 F. Gariel A1 A.P. Carlson A1 E. Shotar A1 G. Ciccio A1 G. Marnat A1 P.B. Sporns A1 T. Gaberel A1 V. Jecko A1 A. Weill A1 A. Biondi A1 G. Boulouis A1 A.L. Bras A1 S. Aldea A1 T. Passeri A1 S. Boissonneau A1 N. Bougaci A1 J.C. Gentric A1 J.D.B. Diestro A1 A.T. Omar A1 H.M. Al-Jehani A1 G. El Hage A1 D. Volders A1 Z. Kaderali A1 I. Tsogkas A1 E. Magro A1 Q. Holay A1 J. Zehr A1 D. Iancu A1 J. Raymond YR 2022 UL http://www.ajnr.org/content/43/10/1437.abstract AB BACKGROUND AND PURPOSE: MCA aneurysms are still commonly clipped surgically despite the recent development of a number of endovascular tools and techniques. We measured clinical uncertainty by studying the reliability of decisions made for patients with middle cerebral artery (MCA) aneurysms.MATERIALS AND METHODS: A portfolio of 60 MCA aneurysms was presented to surgical and endovascular specialists who were asked whether they considered surgery or endovascular treatment to be an option, whether they would consider recruitment of the patient in a randomized trial, and whether they would provide their final management recommendation. Agreement was studied using κ statistics. Intrarater reliability was assessed with the same, permuted portfolio of cases of MCA aneurysm sent to the same specialists 1 month later.RESULTS: Surgical management was the preferred option for neurosurgeons (n = 844/1320; [64%] responses/22 raters), while endovascular treatment was more commonly chosen by interventional neuroradiologists (1149/1500 [76.6%] responses/25 raters). Interrater agreement was only “slight” for all cases and all judges (κ = 0.094; 95% CI, 0.068–0.130). Agreement was no better within specialties or with more experience. On delayed requestioning, 11 of 35 raters (31%) disagreed with themselves on at least 20% of cases. Surgical management and endovascular treatment were always judged to be a treatment option, for all patients. Trial participation was offered to patients 65% of the time.CONCLUSIONS: Individual clinicians did not agree regarding the best management of patients with MCA aneurysms. A randomized trial comparing endovascular with surgical management of patients with MCA aneurysms is in order.ISFDintrasaccular flow disruptorsRCTrandomized controlled trial