Thermoacoustic computed tomography-technical considerations

被引：337

作者：

Kruger, RA ^{[1
]}

Reinecke, DR ^{[1
]}

Kruger, GA ^{[1
]}

机构：

[1] Optoson Inc, Indianapolis, IN 46268 USA

来源：

MEDICAL PHYSICS | 1999年 / 26卷 / 09期

关键词：

thermoacoustic imaging; photoacoustic imaging; mammography; microwave imaging;

D O I：

10.1118/1.598688

中图分类号：

R8 [特种医学]; R445 [影像诊断学];

学科分类号：

1002 ; 100207 ; 1009 ;

摘要：

We have constructed a thermoacoustic computed tomography scanner for imaging soft tissue in the human body. Thermoacoustic signals are induced in soft tissue by irradiation with 434 MHz rf energy. The thermoacoustic signals are detected by an array of transducers mounted on a hemispherical bowl. A three-dimensional, filtered backprojection algorithm is used to reconstruct rf absorption patterns within soft tissue. We have demonstrated soft tissue differentiation sufficient to delineate the normal internal structures of an excised lamb kidney using safe levels of rf radiation. (C) 1999 American Association of Physicists in Medicine. [S0094-2405(99)03009-6].

引用

页码：1832 / 1837

页数：6

共 11 条

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[2]

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[3]

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[4]

CHAUDHARY SS, 1984, INDIAN J BIOCHEM BIO, V21, P76