Validation of DynaCT in the Morphological Assessment of Abdominal Aortic Aneurysm for Endovascular Repair

Purpose: To evaluate the feasibility of intraoperative 3-dimensional rotational angiography (DynaCT) as a single tool to assess suitability for endovascular aneurysm repair (EVAR) and for sizing the stent-graft. Methods: Twenty elective patients undergoing EVAR were prospectively recruited. All had...

Full description

Saved in:
Bibliographic Details
Published in:Journal of endovascular therapy 2010-04, Vol.17 (2), p.183-189
Main Authors: Nordon, Ian M., Hinchliffe, Robert J., Malkawi, Amir H., Taylor, Jeremy, Holt, Peter J., Morgan, Robert, Loftus, Ian M., Thompson, Matt M.
Format: Article
Language:English
Subjects:
Aged
Aged, 80 and over
Aneurysms
Angioplasty
Aortic Aneurysm, Abdominal - diagnostic imaging
Aortic Aneurysm, Abdominal - therapy
Aortography - methods
Blood Vessel Prosthesis Implantation
Cohort Studies
Feasibility Studies
Female
Humans
Imaging, Three-Dimensional
Male
Medical imaging
Medical treatment
Monitoring, Intraoperative
Observer Variation
Predictive Value of Tests
Reproducibility of Results
Tomography, X-Ray Computed
Veins & arteries
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Purpose: To evaluate the feasibility of intraoperative 3-dimensional rotational angiography (DynaCT) as a single tool to assess suitability for endovascular aneurysm repair (EVAR) and for sizing the stent-graft. Methods: Twenty elective patients undergoing EVAR were prospectively recruited. All had preoperative multidetector computed tomography (CT) scans and intraoperative (pre-stent deployment) DynaCT scans. Images were read independently by 4 experienced endovascular practitioners. A total of 17 morphological variables, including aneurysm neck diameter and length, were measured from the CT and DynaCT images and compared. Bland-Altman plots examined intraclass correlation of continuous outcomes; kappa correlation coefficient assessed agreement of ordinal results. Results: The mean DynaCT radiation dose was 3751±835 μGym 2 . The mean difference between DynaCT and multidetector CT in aneurysm neck diameter measurement was − 1.5 mm (95% CI −4.9 to 1.9). Differences in left and right common iliac artery diameters were −1.9 mm (95% CI −6.3 to 2.4) and −2.1 mm (95% CI −6.9 to 2.7), respectively. For presence of neck thrombus, the group kappa statistic was 0.51 (p
ISSN:1526-6028
1545-1550
DOI:10.1583/09-2955.1