کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8130865 | 1523230 | 2018 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Adaptive Color Gain for Vena Contracta Quantification in Valvular Regurgitation
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
آکوستیک و فرا صوت
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چکیده انگلیسی
Severe valvular regurgitation can lead to pulmonary hypertension, atrial fibrillation and heart failure. Vena contracta width is used to estimate the severity of the regurgitation. Parameters affecting visualization of color Doppler have a significant impact on the measurement. We propose a data-driven method for automated adjustment of color gain based on the peak power of the color Doppler signal in the vicinity of the vena contracta. A linear regression model trained on the peak power was used to predict the orifice diameter. According to our study, the color gain should be set to about 6âdB above where color Doppler data completely disappears from the image. Based on our method, orifices with reference diameters of 4, 6.5 and 8.5âmm were estimated with relative diameter errors within 18%, 12% and 14%, respectively.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ultrasound in Medicine & Biology - Volume 44, Issue 8, August 2018, Pages 1770-1777
Journal: Ultrasound in Medicine & Biology - Volume 44, Issue 8, August 2018, Pages 1770-1777
نویسندگان
Pawel Kozlowski, Alfonso Rodriguez-Molares, Thor Andreas Tangen, Kjell Kristoffersen, Hans Torp, Olivier Gerard, Eigil Samset,