The Publication Database hosted by SPL
|
All Publications
Upload
Advanced Search
Gallery View
Download Statistics
Help
Import
Log in
A Computer-Controlled Ultrasound Pulser-Receiver System for Transkull Fluid Detection using a Shear Wave Transmission Technique
|
|
Institution: |
Department of Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA. sct@bwh.harvard.edu |
Publisher: |
IEEE Trans Ultrason Ferroelectr Freq Control |
Publication Date: |
Sep-2007 |
Volume Number: |
54 |
Issue Number: |
9 |
Pages: |
1772-1783 |
Citation: |
IEEE Trans Ultrason Ferroelectr Freq Control. 2007 Sep;54(9):1772-83. |
PubMed ID: |
17941383 |
PMCID: |
PMC2186207 |
Appears in Collections: |
FUS, NCIGT |
Sponsors: |
R21 EB004353 (EB) funded by United States NIBIB U41 RR019703 (RR) funded by United States NCRR |
Generated Citation: |
Tang S.C., Clement G.T., Hynynen K. A Computer-Controlled Ultrasound Pulser-Receiver System for Transkull Fluid Detection using a Shear Wave Transmission Technique. IEEE Trans Ultrason Ferroelectr Freq Control. 2007 Sep;54(9):1772-83. PMID: 17941383. PMCID: PMC2186207. |
| Downloaded: | 909 times. [view map] |
| Paper: | Download, View online |
| Export citation: |
The purpose of this study was to evaluate the performance of a computer-controlled ultrasound pulser-receiver system incorporating a shear mode technique for transskull fluid detection. The presence of fluid in the sinuses of an ex vivo human skull was examined using a pulse-echo method by transmitting an ultrasound beam through the maxilla bone toward the back wall on the other side of the sinus cavity. The pulser was programmed to generate bipolar pulse trains with 5 cycles at a frequency of 1 MHz, repetition frequency of about 20 Hz, and amplitude of 100 V to drive a 1-MHz piezoelectric transducer. Shear and longitudinal waves in the maxilla bone were produced by adjusting the bone surface incident angle to 45 degrees and 0 degrees, respectively. Computer tomography (CT) scans of the skull were performed to verify the ultrasound experiment. Using the shear mode technique, the echo waveform clearly distinguishes the presence of fluid, and the estimated distance of the ultrasound traveled in the sinus is consistent with the measurement from the CT images. Contrarily, using the longitudinal mode, no detectable back wall echo was observed under the same conditions. As a conclusion, this study demonstrated that the proposed pulser-receiver system with the shear mode technique is promising for transskull fluid detecting, such as mucus in a sinus.
Additional Material
1 File (329.19kB)
Tang-IEEE-TransUltrasonFerroelectrFreqControl2007-fig11.jpg (329.19kB)