The feasibility of using thermal strain imaging to regulate energy delivery during intracardiac radio-frequency ablation
IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control(2011)
摘要
A method is introduced to monitor cardiac ablative therapy by examining slope changes in the thermal strain curve caused by speed of sound variations with temperature. The sound speed of water-bearing tissue such as cardiac muscle increases with temperature. However, at temperatures above about 50°C, there is no further increase in the sound speed and the temperature coefficient may become slightl...
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关键词
Strain,Temperature measurement,Heating,Temperature sensors,Catheters,Ultrasonic imaging,Arrays
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