Centerline analysis for the measurement of aortic diameter at proximal landing zone in type B aortic dissection:a preliminary study
10.3969/j.issn.1008-794X.2015.10.006
- VernacularTitle:中心线法测量B型主动脉夹层锚定区的初步研究
- Author:
Junyuan Lü
;
Lei WANG
;
Chunqing YANG
;
Lei WANG
;
Xuan LI
;
Hongming GAO
;
Shijie XIN
- Publication Type:Journal Article
- Keywords:
aortic dissection;
endovascular procedure;
proximal landing zone;
computer-assisted image analysis
- From:
Journal of Interventional Radiology
2015;(10):857-860
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the feasibility of centerline measurement method in estimating aortic diameter at the proximal landing zone in Stanford B type aortic dissection. Methods CT angiography materials of 30 patients with type B aortic dissection were randomly selected from the hospital database (24 males with a median age of 49.5 years), which were retrospectively analyzed with multiplanar reformation (MPR) and centerline technique by two experts in vascular radiology. Difference between two measurement techniques was analyzed by using mixed linear model, and the agreement of measurements between two readers as well as between two techniques were evaluated by Bland-Altman plots. Results The diameters measured with MPR method by two experts were (29.73±2.99) mm and (29.86±2.95) mm respectively, while the diameters measured with centerline measurement method by two experts were (29.66 ±2.81) mm and (29.71 ±2.91) mm respectively. No statistically significant differences in the diameter value existed between the two measurement methods, although the results determined by centerline measurement method were more stable. Conclusion In determining aortic diameter at the proximal landing zone in Stanford B type aortic dissection, the centerline analysis provides a checking method for MPR measurement.
