کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5497118 | 1530938 | 2016 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Improvements in Low-cost Ultrasonic Measurements of Blood Flow in “by-passes” Using Narrow & Broad Band Transit-time Procedures
ترجمه فارسی عنوان
بهبودی در اندازه گیری های سونوگرافی کم هزینه جریان خون در گذرگاه؟ با استفاده از روش های زمان حمل و نقل باریک و گسترده
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کلمات کلیدی
اندازه گیری های اولتراسونیک، جریان خون، میان بر، زمان انتقال، جریان سنج
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک و نجوم (عمومی)
چکیده انگلیسی
The cardio-pathology by ischemia is an important cause of death, but the re-vascularization of coronary arteries (by-pass operation) is an useful solution to reduce associated morbidity improving quality of life in patients. During these surgeries, the flow in coronary vessels must be measured, using non-invasive ultrasonic methods, known as transit time flow measurements (TTFM), which are the most accurate option nowadays. TTFM is a common intra-operative tool, in conjunction with classic Doppler velocimetry, to check the quality of these surgery processes for implanting grafts in parallel with the coronary arteries. This work shows important improvements achieved in flow-metering, obtained in our research laboratories (CSIC, ICIMAF, COPPE) and tested under real surgical conditions in Cardiocentro-HHA, for both narrowband NB and broadband BB regimes, by applying results of a CYTED multinational project (Ultrasonic & computational systems for cardiovascular diagnostics). mathematical models and phantoms were created to evaluate accurately flow measurements, in laboratory conditions, before our new electronic designs and low-cost implementations, improving previous ttfm systems, which include analogic detection, acquisition & post-processing, and a portable PC. Both regimes (NB and BB), with complementary performances for different conditions, were considered. Finally, specific software was developed to offer facilities to surgeons in their interventions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physics Procedia - Volume 87, 2016, Pages 42-47
Journal: Physics Procedia - Volume 87, 2016, Pages 42-47
نویسندگان
A. Ramos, H. Calas, L. Diez, E. Moreno, J. ProhÃas, A. Villar, E. Carrillo, A. Jiménez, W.C.A. Pereira, M.A. Von Krüger,