The recursive echo strain filter (RESF) model is presented as a new echo shift-based ultrasound temperature estimation model. The model is shown to have an infinite impulse response (IIR) filter realization of a differentitor-integrator operator. This model is then used for tracking sub-therapeutic temperature changes due to high intensity focused ultrasound (HIFU) shots in the hind limb of the Copenhagen rats in vivo. In addition to the reconstruction filter, a motion compensation method is presented which takes advantage of the deformation field outside the region of interest to correct the motion errors during temperature tracking. The combination of the RESF model and motion compensation algorithm is shown to greatly enhance the accuracy of the in vivo temperature estimation using ultrasound echo shifts.
|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 noteFunding Information:
This work supported in part by Grant NIBIB 009750 from the National Institutes of Health and in part by a Minnesota Futures grant from the office of vice president for research of University of Minnesota. The authors would like to thank Dr. Dalong Liu for his efforts in the development of the integrated imaging and therapy system, Dr. Jeungh-wan Choi and Prof. John Bischof for helping with the animal study and Dr. Andrew J. Casper and Alyona Haritonova for help during the experiment and discussions.
© 2017 Author(s).
- Ultrasound thermography
- adaptive motion compensation
- speckle tracking