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Semiautomatic, Quantitative Measurement of Aortic Valve Area Using CTA: Validation and Comparison with Transthoracic Echocardiography
المؤلفون المشاركون
Oudkerk, Matthijs
Tuncay, V.
Prakken, N.
Budde, R. P. J.
Leiner, T.
Van Ooijen, Peter M.
المصدر
العدد
المجلد 2015، العدد 2015 (31 ديسمبر/كانون الأول 2015)، ص ص. 1-9، 9ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2015-06-29
دولة النشر
مصر
عدد الصفحات
9
التخصصات الرئيسية
الملخص 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.
نمط استشهاد جمعية علماء النفس الأمريكية (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
نمط استشهاد الجمعية الأمريكية للغات الحديثة (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
نمط استشهاد الجمعية الطبية الأمريكية (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
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1056276
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
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