کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1760668 | 1019620 | 2014 | 15 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Ultrasound Thermal Mapping Based on a Hybrid Method Combining Physical and Statistical Models
ترجمه فارسی عنوان
نقشه برداری حرارتی سونوگرافی بر اساس یک روش ترکیبی از مدل های فیزیکی و آماری
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کلمات کلیدی
درجه حرارت، تصویربرداری التراسونیک، مدل فیزیکی، مدل آماری،
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
آکوستیک و فرا صوت
چکیده انگلیسی
Non-invasive temperature measurement of tissues deep inside the body has great potential for clinical applications, such as temperature monitoring during thermal therapy and early diagnosis of diseases. We developed a novel method for both temperature estimation and thermal mapping that uses ultrasound B-mode radiofrequency data. The proposed method is a hybrid that combines elements of physical and statistical models to achieve higher precision and resolution of temperature variations and distribution. We propose a dimensionless combined index (CI) that combines the echo shift differential and signal intensity difference with a weighting factor relative to the distance from the heat source. In vitro experiments verified that the combined index has a strong linear relationship with temperature variation and can be used to effectively estimate temperature with an average relative error <5%. This algorithm provides an alternative for imaging guidance-based techniques during thermal therapy and could easily be integrated into existing ultrasound systems.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ultrasound in Medicine & Biology - Volume 40, Issue 1, January 2014, Pages 115-129
Journal: Ultrasound in Medicine & Biology - Volume 40, Issue 1, January 2014, Pages 115-129
نویسندگان
Ben-Ting Chen, Jay Shieh, Chang-Wei Huang, Wen-Shiang Chen, Shing-Ru Chen, Chuin-Shan Chen,