The Publication Database hosted by SPL
|
All Publications
Upload
Advanced Search
Gallery View
Download Statistics
Help
Import
Log in
Thermal Imaging with Ultrasound Reflex Transmission Methods
|
|
Institution: |
Department of Radiology, Brigham and Women’s Hospital, Harvard Medical School Boston, MA, USA |
Publisher: |
IEEE International Ultrasonics Symposium IUS 2008 |
Publication Date: |
Nov-2008 |
Pages: |
2088-2091 |
Citation: |
IEEE International Ultrasonics Symposium 2008;2088-2091. |
Keywords: |
Ultrasound, thermometry, reflex transmission imaging, phase contrast |
Appears in Collections: |
FUS, NCIGT |
Sponsors: |
NIH U41 RR019703 NIH R25 CA089017-06 |
Generated Citation: |
Farny C.H., Clement G.T. Thermal Imaging with Ultrasound Reflex Transmission Methods. IEEE International Ultrasonics Symposium 2008;2088-2091. |
| Downloaded: | 438 times. [view map] |
| Paper: | Download, View online |
| Export citation: |
Results were recently presented [1] demonstrating the feasibility of applying an ultrasound phase-contrast method for determining temperature change in water from a thermal plume in a through-transmission arrangement. Here we present results from reflex transmission measurements of steady-state heating from a HIFU transducer in a tissue phantom. A 1.68-MHz focused transducer interrogated the phantom and a near-acoustically transparent hydrophone was scanned throughout the sound field to obtain the reflection from the back surface of the phantom. The output from a 1.088-MHz HIFU transducer was interleaved with the diagnostic field to induce a steady-state temperature change in the phantom. Two hydrophone scans were performed to obtain the reflex transmission signal before and during heating. The sound fields were numerically back-projected to the region of heating, integrated along the propagation axis, and tomographically reconstructed to obtain the phase change, from which the sound speed and temperature change was determined.
Additional Material
1 File (117.207kB)
Farny-IUS2008-fig2.jpg (117.207kB)