Automated quantification of aortoaortic and aortoiliac angulation for computed tomographic angiography of abdominal aortic aneurysms before endovascular repair: preliminary study.
Journal Article (Journal Article)
The degree of angulation of abdominal aortic aneurysms (AAAs) has emerged as an important factor in assessing eligibility for endovascular aneurysm repair (EVAR). The authors developed an automatic algorithm that reduces variability of measurement of aortoiliac angulation. For highly structured manual methods, intraobserver variability was 8.2 degrees ± 5.0 (31% ± 20) and interobserver variability was 5.6 degrees ± 2.5 (20% ± 9.1) compared with 0.6 degrees ± 0.8 (2.2% ± 3.6) (intraobserver) and 0.4 degrees ± 0.4 (1.4% ± 1.9) (interobserver) for the automatic algorithm (P < .01). In phantoms, the automatically measured angles were equivalent to reference values (P < .05). This algorithm was also faster than manual methods and has the potential to enhance the clinical utility and reliability of computed tomographic angiography for preoperative assessment for EVAR.
Full Text
Duke Authors
Cited Authors
- Raman, B; Raman, R; Napel, S; Rubin, GD
Published Date
- November 2010
Published In
Volume / Issue
- 21 / 11
Start / End Page
- 1746 - 1750
PubMed ID
- 20932776
Pubmed Central ID
- PMC2966507
Electronic International Standard Serial Number (EISSN)
- 1535-7732
Digital Object Identifier (DOI)
- 10.1016/j.jvir.2010.07.025
Language
- eng
Conference Location
- United States