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Semiautomatic, Quantitative Measurement of Aortic Valve Area Using CTA: Validation and Comparison with Transthoracic Echocardiography
Joint Authors
Oudkerk, Matthijs
Tuncay, V.
Prakken, N.
Budde, R. P. J.
Leiner, T.
Van Ooijen, Peter M.
Source
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-06-29
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
Objective.
The aim of this work was to develop a fast and robust (semi)automatic segmentation technique of the aortic valve area (AVA) MDCT datasets.
Methods.
The algorithm starts with detection and cropping of Sinus of Valsalva on MPR image.
The cropped image is then binarized and seed points are manually selected to create an initial contour.
The contour moves automatically towards the edge of aortic AVA to obtain a segmentation of the AVA.
AVA was segmented semiautomatically and manually by two observers in multiphase cardiac CT scans of 25 patients.
Validation of the algorithm was obtained by comparing to Transthoracic Echocardiography (TTE).
Intra- and interobserver variability were calculated by relative differences.
Differences between TTE and MDCT manual and semiautomatic measurements were assessed by Bland-Altman analysis.
Time required for manual and semiautomatic segmentations was recorded.
Results.
Mean differences from TTE were −0.19 (95% CI: −0.74 to 0.34) cm2 for manual and −0.10 (95% CI: −0.45 to 0.25) cm2 for semiautomatic measurements.
Intra- and interobserver variability were 8.4 ± 7.1% and 27.6 ± 16.0% for manual, and 5.8 ± 4.5% and 16.8 ± 12.7% for semiautomatic measurements, respectively.
Conclusion.
Newly developed semiautomatic segmentation provides an accurate, more reproducible, and faster AVA segmentation result.
American Psychological Association (APA)
Tuncay, V.& Prakken, N.& Van Ooijen, Peter M.& Budde, R. P. J.& Leiner, T.& Oudkerk, Matthijs. 2015. Semiautomatic, Quantitative Measurement of Aortic Valve Area Using CTA: Validation and Comparison with Transthoracic Echocardiography. BioMed Research International،Vol. 2015, no. 2015, pp.1-9.
https://search.emarefa.net/detail/BIM-1056276
Modern Language Association (MLA)
Tuncay, V.…[et al.]. Semiautomatic, Quantitative Measurement of Aortic Valve Area Using CTA: Validation and Comparison with Transthoracic Echocardiography. BioMed Research International No. 2015 (2015), pp.1-9.
https://search.emarefa.net/detail/BIM-1056276
American Medical Association (AMA)
Tuncay, V.& Prakken, N.& Van Ooijen, Peter M.& Budde, R. P. J.& Leiner, T.& Oudkerk, Matthijs. Semiautomatic, Quantitative Measurement of Aortic Valve Area Using CTA: Validation and Comparison with Transthoracic Echocardiography. BioMed Research International. 2015. Vol. 2015, no. 2015, pp.1-9.
https://search.emarefa.net/detail/BIM-1056276
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1056276