Abstract
Vibro-acoustography is an imaging method based on the vibro-acoustic response of the object to a low-frequency radiation force of ultrasound. Here, we present the results of a study on detection mass lesions by vibroacoustography. Experiments were conducted on excised human liver tissues that included focal mass lesions which were a few mm to a few cm in diameter. The 3 MHz transducer used for this purpose provided a 0.7 mm lateral resolution. The focal length of the transducer was long enough to cover the entire 5 mm thickness of the specimen. Several scans of each sample were obtained. Resulting images distinctively showed the normal liver tissue and the mass lesions. Masses appeared with enhanced boundary and rough textures in VA which allowed us to delineate the masses from the surrounded tissue. These results suggest that vibro-acoustography may be a clinically useful imaging modality for detection of mass lesions in soft tissue.
| Original language | English (US) |
|---|---|
| Title of host publication | Progress in Biomedical Optics and Imaging - Proceedings of SPIE |
| Editors | W.F. Walker, S.Y. Emelianov |
| Pages | 503-506 |
| Number of pages | 4 |
| Volume | 5750 |
| DOIs | |
| State | Published - 2005 |
| Event | Medical Imaging 2005 - Ultrasonic Imaging and Signal Processing - San Diego, CA, United States Duration: Feb 15 2005 → Feb 17 2005 |
Other
| Other | Medical Imaging 2005 - Ultrasonic Imaging and Signal Processing |
|---|---|
| Country | United States |
| City | San Diego, CA |
| Period | 2/15/05 → 2/17/05 |
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Keywords
- Imaging
- Liver
- Mass lesion
- Radiation force
- Ultrasound
- Vibro-acoustography
ASJC Scopus subject areas
- Engineering(all)
Cite this
Detection of liver lesions by vibro-acoustography. / Alizad, Azra; Wold, Lester E.; Greenleaf, James F; Fatemi, Mostafa.
Progress in Biomedical Optics and Imaging - Proceedings of SPIE. ed. / W.F. Walker; S.Y. Emelianov. Vol. 5750 2005. p. 503-506 54.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Detection of liver lesions by vibro-acoustography
AU - Alizad, Azra
AU - Wold, Lester E.
AU - Greenleaf, James F
AU - Fatemi, Mostafa
PY - 2005
Y1 - 2005
N2 - Vibro-acoustography is an imaging method based on the vibro-acoustic response of the object to a low-frequency radiation force of ultrasound. Here, we present the results of a study on detection mass lesions by vibroacoustography. Experiments were conducted on excised human liver tissues that included focal mass lesions which were a few mm to a few cm in diameter. The 3 MHz transducer used for this purpose provided a 0.7 mm lateral resolution. The focal length of the transducer was long enough to cover the entire 5 mm thickness of the specimen. Several scans of each sample were obtained. Resulting images distinctively showed the normal liver tissue and the mass lesions. Masses appeared with enhanced boundary and rough textures in VA which allowed us to delineate the masses from the surrounded tissue. These results suggest that vibro-acoustography may be a clinically useful imaging modality for detection of mass lesions in soft tissue.
AB - Vibro-acoustography is an imaging method based on the vibro-acoustic response of the object to a low-frequency radiation force of ultrasound. Here, we present the results of a study on detection mass lesions by vibroacoustography. Experiments were conducted on excised human liver tissues that included focal mass lesions which were a few mm to a few cm in diameter. The 3 MHz transducer used for this purpose provided a 0.7 mm lateral resolution. The focal length of the transducer was long enough to cover the entire 5 mm thickness of the specimen. Several scans of each sample were obtained. Resulting images distinctively showed the normal liver tissue and the mass lesions. Masses appeared with enhanced boundary and rough textures in VA which allowed us to delineate the masses from the surrounded tissue. These results suggest that vibro-acoustography may be a clinically useful imaging modality for detection of mass lesions in soft tissue.
KW - Imaging
KW - Liver
KW - Mass lesion
KW - Radiation force
KW - Ultrasound
KW - Vibro-acoustography
UR - http://www.scopus.com/inward/record.url?scp=24644456954&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=24644456954&partnerID=8YFLogxK
U2 - 10.1117/12.596582
DO - 10.1117/12.596582
M3 - Conference contribution
AN - SCOPUS:24644456954
VL - 5750
SP - 503
EP - 506
BT - Progress in Biomedical Optics and Imaging - Proceedings of SPIE
A2 - Walker, W.F.
A2 - Emelianov, S.Y.
ER -