Low-frequency three-dimensional ultrasonic tomography

被引：9

作者：

Goncharsky, A. V. ^{[1
]}

Romanov, S. Yu. ^{[1
]}

Seryozhnikov, S. Yu. ^{[1
]}

机构：

[1] Moscow MV Lomonosov State Univ, Ctr Res Comp, Moscow, Russia

来源：

DOKLADY PHYSICS | 2016年 / 61卷 / 05期

基金：

俄罗斯基础研究基金会;

关键词：

INVERSE PROBLEMS; SPATIAL DISTRIBUTIONS; SOUND-VELOCITY; RECONSTRUCTION; ABSORPTION;

D O I：

10.1134/S1028335816050086

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

The possibility of making ultrasonic 3D tomographs for medical diagnostics of soft tissues was established. The choice of frequencies of ultrasonic pulses of 300-500 kHz was due to low absorption in soft tissues within this range. The reverse problems of ultrasonic tomography, which are three-dimensional and nonlinear, have been considered in a model that takes into account both wave effects and absorption. The effectiveness of algorithms to solve the reverse problems that were developed has been illustrated by model calculations. The velocity configuration has been shown to be recovered better than the function that describes absorption in soft tissues.

引用

页码：211 / 214

页数：4

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