TY - GEN
T1 - Monitoring of lesions induced by cavitation-enhanced high-intensity focused ultrasound using shear wave elastography
AU - Iwasaki, Ryosuke
AU - Nagaoka, Ryo
AU - Saijo, Yoshifumi
AU - Umemura, Shin Ichiro
AU - Takagi, Ryo
AU - Jimbo, Hayato
AU - Yoshizawa, Shin
N1 - Publisher Copyright:
© 2015 IEEE.
PY - 2015/11/13
Y1 - 2015/11/13
N2 - Shear wave elastography is expected as a noninvasive monitoring method in high-intensity focused ultrasound treatment. Since elastography is usually applied to detect a lesion near a superficial layer, it is challenging to induce and propagate shear waves in deep tissue. Acoustic cavitation bubbles have the potential to promote the efficiency of the treatment; however the presence of remaining microbubbles may interfere with the shear wave propagation and make the detection of the accompanying displacements difficult. In this paper, it is examined whether the detection of the region where increased shear wave propagation velocity in ex vivo tissue is possible even in the presence of microbubbles and 'HIFU push' shear wave elastography has the advantage in terms of shear wave induction in deep tissue compared with a conventional technique by irradiating push beams from the same therapeutic transducer as HIFU exposure.
AB - Shear wave elastography is expected as a noninvasive monitoring method in high-intensity focused ultrasound treatment. Since elastography is usually applied to detect a lesion near a superficial layer, it is challenging to induce and propagate shear waves in deep tissue. Acoustic cavitation bubbles have the potential to promote the efficiency of the treatment; however the presence of remaining microbubbles may interfere with the shear wave propagation and make the detection of the accompanying displacements difficult. In this paper, it is examined whether the detection of the region where increased shear wave propagation velocity in ex vivo tissue is possible even in the presence of microbubbles and 'HIFU push' shear wave elastography has the advantage in terms of shear wave induction in deep tissue compared with a conventional technique by irradiating push beams from the same therapeutic transducer as HIFU exposure.
KW - HIFU
KW - SWE
KW - cavitation enhanced heating
KW - coagulation detection
KW - shear wave penetration
KW - ultrasound imaging
UR - http://www.scopus.com/inward/record.url?scp=84962018642&partnerID=8YFLogxK
U2 - 10.1109/ULTSYM.2015.0042
DO - 10.1109/ULTSYM.2015.0042
M3 - 会議への寄与
AN - SCOPUS:84962018642
T3 - 2015 IEEE International Ultrasonics Symposium, IUS 2015
BT - 2015 IEEE International Ultrasonics Symposium, IUS 2015
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - IEEE International Ultrasonics Symposium, IUS 2015
Y2 - 21 October 2015 through 24 October 2015
ER -