1. Three- and Two-Dimensional Ultrasound is as Accurate as Computed Tomography in Aortic Sac Assessment after Endovascular Aortic Repair
- Author
-
Qasam M. Ghulam, Mikkel Taudorf, Kim K. Bredahl, Laurence Rouet, Henrik Sillesen, and Jonas Eiberg
- Subjects
Male ,Time Factors ,Aortography ,Computed Tomography Angiography ,medicine.medical_treatment ,Partial volume ,030204 cardiovascular system & hematology ,Endovascular aneurysm repair ,030218 nuclear medicine & medical imaging ,Blood Vessel Prosthesis Implantation ,03 medical and health sciences ,Imaging, Three-Dimensional ,0302 clinical medicine ,Predictive Value of Tests ,Image Interpretation, Computer-Assisted ,medicine ,Humans ,Aortic sac ,Aged ,Ultrasonography ,Computed tomography angiography ,Aged, 80 and over ,medicine.diagnostic_test ,business.industry ,Endovascular Procedures ,Ultrasound ,General Medicine ,Gold standard (test) ,Aortic Aneurysm ,Treatment Outcome ,Predictive value of tests ,Female ,Surgery ,sense organs ,Cardiology and Cardiovascular Medicine ,Nuclear medicine ,business - Abstract
To compare aortic sac changes after endovascular aneurysm repair (EVAR) assessed by three-dimensional ultrasound (3D-US), two-dimensional ultrasound (2D-US), and traditional computed tomographic angiography (CTA).Using volume assessment with three-dimensional CTA (3D-CTA-volume) as the gold standard, this study investigated aortic sac changes at three and 12 months after EVAR with three different ultrasound methods (2D-US anterior-posterior (AP) diameter, 3D-US AP centerline diameter, and 3D-US partial volume), and traditional CT multiplanar outer-to-outer diameter (CT-MPR OTO diameter). From august 1st, 2011 to January 2014, consecutive EVAR patients (n = 113) were available for analysis in two time intervals; 1) between preoperative and three-month follow-up and 2) between three and 12 month follow-up.The risk of missing true aortic sac growth (false negative finding) at three-month postoperative visit using 3D-US partial volume, 3D-US AP centerline diameter, 2D-US AP diameter, and CT-MPR OTO diameter was 19%, 21%, 22%, and 18%, respectively. Corresponding low sensitivities (0% to 21%) and kappa-values (0.50) in detecting aortic sac changes were found. The risk of missing true growth between three and 12 months were lower (6%, 5%, 6%, and 6%, respectively), and matching sensitivities 33%, 33%, 17%, and 17%, respectively.All tested methods for aortic sac changes were as good as traditional CT-MPR OTO diameter and corresponded poorly with 3D-CTA-volume at three months postoperative visit but substantially better after 12 months where the residual sac change was more profound.
- Published
- 2021