Development of precise 3D temperature rise estimation method and measurement system caused by ultrasonic irradiation

开发超声波照射引起的精确3D温升估算方法和测量系统

• 批准号: 23500568
• 负责人: ENDOH Nobuyuki
• 金额: $ 3.41万
• 依托单位: Kanagawa University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011 至 2013
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23500568/
• 关键词: 超音波照射; 温度上昇; 精密測定; 数値計算; 還流; FDTD; 血流による冷却; ファントム; 高精密温度分布予測; ファントム内の血流; シミュレーション法プログラム; 寒天ファントム; GPU; 超音波; 非接触観察; シミュレーション; 三次元; 高速計算

It is important to assure the safety of temperature rise caused by ultrasound for new imaging system, because new system such as an elasticity imaging used radiation force requires higher ultrasound than the conventional system. We studied about the precise 3D-thermaldistribution expectation method for the tissue mimicking phantom with quasi blood-circular system. The 3D FDTD-HCE simulation program using MPI parallel programing technique and some GPU units was developed. The cubic phantom in 90mm was made with agar that had some components such as graphite. The pure water was flowing in the quasi blood vessel (plastic tube) in the agar phantom. Acoustic and heat constants of phantoms were almost the same as that of soft tissue. Temperature distributions at the center section of phantoms were measured by infrared thermometer. The 3D simulation results agreed well with experiment of agar phantom. It shows that proposed method has the validity for the thermal conduction analysis.

由于采用辐射力的弹性成像等新型成像系统对超声的要求高于传统成像系统，因此确保超声温升的安全性对新型成像系统至关重要。研究了具有准血液循环系统的组织模拟模型的精确三维热分布期望方法。利用MPI并行编程技术和一些GPU单元，开发了FDTD-HCE三维仿真程序。用含有石墨等成分的琼脂制成90mm的立方体体模。纯净水在琼脂幻影的准血管（塑料管）中流动。鬼怪的声热常数与软组织的声热常数基本一致。用红外测温仪测量了模体中心截面的温度分布。三维模拟结果与琼脂幻影实验结果吻合较好。结果表明，该方法对热传导分析是有效的。

项目成果

Basic Study of Property of Planate Acoustic Lens constructed with Phononic Crystal Structures

声子晶体结构平面声透镜性能的基础研究

• 发表时间: 2011
• 期刊: Proc. of IEEE Ultrasonics Symposium
• 作者: T. TSUCHIYA;T. ANADA;N. ENDOH
• 通讯作者: N. ENDOH

Relationship between Spatial Distribution of Noise Sources and Target Scatterings Observed in the 2010 Sea Trial of Ambient Noise Imaging

2010年环境噪声成像海试中噪声源空间分布与目标散射的关系

• 发表时间: 2013
• 期刊: Jpn. J. Appl. Phys.
• 作者: K.Mori;H.Ogasawara;T.Nakamura;T.Tsuchiya;and N.Endoh,
• 通讯作者: and N.Endoh,

THE DESIGN OF PLANATE ACOUSTIC LENS MADE BY PHONONIC CRYSTAL STRUCTURES

声子晶体结构平面声透镜的设计

• 作者: T. TSUCHIYA;T. ANADA;N. ENDOH,
• 通讯作者: N. ENDOH,

Experiment and Numerical Analysis of Temperature Rise in Phantom Caused by High-Intensity Focused Ultrasonic Irradiation

高强度聚焦超声辐照引起体模温升的实验与数值分析

• 发表时间: 2013
• 期刊: Jpn.J.Apl.Phys
• 作者: S.Tanaka;K.Shimizu;S.Sakuma;T.Tsuchiya;N.Endoh
• 通讯作者: N.Endoh

3D-Simulation for temperature rise in tissue mimicking phantom with bone

3D 模拟带有骨骼的组织模型的温度升高

• 发表时间: 2012
• 作者: N.Endoh;T.Tsuchiya;S.Sakuma;S.Tanaka
• 通讯作者: S.Tanaka