組織の加熱凝固を考慮したHIFU治療シミュレーション: J0102-3-3 (次世代生命体統合シミュレーション(3))

Translated title of the contribution: J0102-3-3 Simulation of the high intensity focused ultrasound therapy including the heat coagulation of tissue

沖田 浩平, 小野 謙二, 杉山 和靖, 高木 周, 松本 洋一郎

Research output: Contribution to journalArticle

Abstract

The development of High Intensity Focused Ultrasound (HIFU) therapy for the treatment of deeply-placed tumor has been desired. Problems are the displacement of focal point due to the reflection and refraction of ultrasound at the interfaces of bones and the attenuation of ultrasound due to the skins, fat and tissues. To minimize the invasive region of tissues by HIFU, the numerical simulation is available for the prediction of the treatment of tissues. In the present study, the HIFU therapy for the liver tumor is represented numerically. The simulation with the heat coagulation shows that the increase of acoustic impedance due to the coagulation causes the scattering of ultrasound at the interface of the coagulation region, which then develops toward the transducer. Therefore, the influence of the heat coagulation of tissue on the acoustic field should be considered to predict the treatment region precisely.
Original languageJapanese
Pages (from-to)43-44
Number of pages2
Journal年次大会講演論文集 : JSME annual meeting
Volume2009
Issue number6
Publication statusPublished - Sep 12 2009

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coagulation
therapy
heat
tumors
simulation
acoustic impedance
fats
liver
bones
refraction
transducers
attenuation
acoustics
causes
predictions
scattering

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組織の加熱凝固を考慮したHIFU治療シミュレーション : J0102-3-3 (次世代生命体統合シミュレーション(3)). / 沖田浩平; 小野謙二; 杉山和靖; 高木周; 松本洋一郎.

In: 年次大会講演論文集 : JSME annual meeting, Vol. 2009, No. 6, 12.09.2009, p. 43-44.

Research output: Contribution to journalArticle

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abstract = "The development of High Intensity Focused Ultrasound (HIFU) therapy for the treatment of deeply-placed tumor has been desired. Problems are the displacement of focal point due to the reflection and refraction of ultrasound at the interfaces of bones and the attenuation of ultrasound due to the skins, fat and tissues. To minimize the invasive region of tissues by HIFU, the numerical simulation is available for the prediction of the treatment of tissues. In the present study, the HIFU therapy for the liver tumor is represented numerically. The simulation with the heat coagulation shows that the increase of acoustic impedance due to the coagulation causes the scattering of ultrasound at the interface of the coagulation region, which then develops toward the transducer. Therefore, the influence of the heat coagulation of tissue on the acoustic field should be considered to predict the treatment region precisely.",
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AU - 沖田, 浩平

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AB - The development of High Intensity Focused Ultrasound (HIFU) therapy for the treatment of deeply-placed tumor has been desired. Problems are the displacement of focal point due to the reflection and refraction of ultrasound at the interfaces of bones and the attenuation of ultrasound due to the skins, fat and tissues. To minimize the invasive region of tissues by HIFU, the numerical simulation is available for the prediction of the treatment of tissues. In the present study, the HIFU therapy for the liver tumor is represented numerically. The simulation with the heat coagulation shows that the increase of acoustic impedance due to the coagulation causes the scattering of ultrasound at the interface of the coagulation region, which then develops toward the transducer. Therefore, the influence of the heat coagulation of tissue on the acoustic field should be considered to predict the treatment region precisely.

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