TY - GEN
T1 - Temperature estimation in HIFU with lateral speckle tracking
AU - Baek, Eunsol
AU - Seo, Jongbum
PY - 2009/12/1
Y1 - 2009/12/1
N2 - High intensity focused ultrasound (HIFU) can noninvasively induce thermal coagulation in cancerous tissue. An adequate increase in temperature and an appropriate duration is critical for such thermally induced damage. The aim of this study was to provide a model pertinent to temperature monitoring based on ultrasound imaging in HIFU procedure. A two-dimensional model for temperature estimation based on the linear thermodynamic properties of biological tissues is addressed. To measure temperature changes in the focal zone, we proposed an algorithm using a lateral speckle tracking technique. A modified cross correlation algorithm with a synthetic lateral phase was developed to reduce the computation required allowing for real-time implementation. Using this method, the expected minimum measurable temperature change was approximately 3°C with a resolution of 5 mm in the axial direction and 2 mm in the lateral direction. It is believed that this model is a useful tool for the monitoring of temperature in HIFU.
AB - High intensity focused ultrasound (HIFU) can noninvasively induce thermal coagulation in cancerous tissue. An adequate increase in temperature and an appropriate duration is critical for such thermally induced damage. The aim of this study was to provide a model pertinent to temperature monitoring based on ultrasound imaging in HIFU procedure. A two-dimensional model for temperature estimation based on the linear thermodynamic properties of biological tissues is addressed. To measure temperature changes in the focal zone, we proposed an algorithm using a lateral speckle tracking technique. A modified cross correlation algorithm with a synthetic lateral phase was developed to reduce the computation required allowing for real-time implementation. Using this method, the expected minimum measurable temperature change was approximately 3°C with a resolution of 5 mm in the axial direction and 2 mm in the lateral direction. It is believed that this model is a useful tool for the monitoring of temperature in HIFU.
UR - http://www.scopus.com/inward/record.url?scp=77952808758&partnerID=8YFLogxK
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U2 - 10.1109/ULTSYM.2009.5441894
DO - 10.1109/ULTSYM.2009.5441894
M3 - Conference contribution
AN - SCOPUS:77952808758
SN - 9781424443895
T3 - Proceedings - IEEE Ultrasonics Symposium
BT - 2009 IEEE International Ultrasonics Symposium and Short Courses, IUS 2009
T2 - 2009 IEEE International Ultrasonics Symposium, IUS 2009
Y2 - 20 September 2009 through 23 September 2009
ER -