Objective of this study was to noninvasively extract quantitative estimates of heart tissue absorption before and after lesion formation. To extract tissue absorption, ultrasound temperature maps were reconstructed from single transmit focus (STF) images acquired with a 3.5MHz Dual-Mode Ultrasound Array (DMUA). Initial heating rate is estimated before and after therapeutic lesion formation through a delivery of a subtherapeutic intensity shot in ex vivo bovine heart tissue. Changes in heating rate are documented for a subset of five subtherapeutic shot intensities. Additionally, repeatability is demonstrated for before and after measurement of the initial heating rate. Careful gross examination of tissue was performed for every location where an absorption measurement was made.
|Original language||English (US)|
|Title of host publication||Proceedings from the 14th International Symposium on Therapeutic Ultrasound, ISTU 2014|
|Editors||J. Brian Fowlkes, Vasant A. Salgaonkar|
|Publisher||American Institute of Physics Inc.|
|State||Published - Mar 17 2017|
|Event||14th International Symposium on Therapeutic Ultrasound, ISTU 2014 - Las Vegas, United States|
Duration: Apr 2 2014 → Apr 5 2014
|Name||AIP Conference Proceedings|
|Other||14th International Symposium on Therapeutic Ultrasound, ISTU 2014|
|Period||4/2/14 → 4/5/14|
Bibliographical notePublisher Copyright:
© 2017 Author(s).