Two-dimensional Versus Three-dimensional Registration for Image Fusion Technology

Image fusion technology allows for reduced operative time and radiation exposure during complex endovascular aortic operations. There are two approaches to register the preoperative computed tomography (CT) scan patient; either using x-ray images (2D) or a cone beam CT (three-dimensional [3D]). The goal of this study was compare accuracy initial mask alignment as well duration creation 2D versus 3D registration. We performed retrospective analysis patients who underwent aneurysm repair at our institution. Offline, we used VesselNavigator (Philips Healthcare, Best, Netherlands) re-register patient's stored from procedure. an anterior-posterior image lateral approach then aortogram measure distance both chose inferior angle between bilateral renal arteries aorta fiducial markers. Furthermore measured registration processes. Wilcoxon matched-pairs signed-rank test populations. A total 27 were evaluated, 12 repair, 9 fenestrated 6 had physician-modified endograft; 7 prior repair. median (Q1, Q3) difference virtual 8 (4, 11) 14 (9, 23) (P < .001). Twenty-two more accurate with fusion. on average faster by 88 seconds .001) where 107 193 yields higher, unadjusted over registration, in mean distances frequency. This superior accuracy, is expense marginally longer time. Despite added effort, believe be preferred approach.Fig 2View Large Figure ViewerDownload Hi-res Download (PPT)