Automated quantification of aortoaortic and aortoiliac angulation for computed tomographic angiography of abdominal aortic aneurysms before endovascular repair: preliminary study.

Published

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

  • 20932776

Electronic International Standard Serial Number (EISSN)

  • 1535-7732

International Standard Serial Number (ISSN)

  • 1051-0443

Digital Object Identifier (DOI)

  • 10.1016/j.jvir.2010.07.025

Language

  • eng