Thermoacoustic computed tomography-technical considerations
Thermoacoustic computed tomography-technical considerations
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DOI：
10.1118/1.598688
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发表时间：
1999-09-01
期刊：
影响因子：
3.8
通讯作者：
Kruger, GA
中科院分区：
文献类型：
--
作者：
Kruger, RA;Reinecke, DR;Kruger, GA
我们已经建立了一个热声计算机断层扫描成像软组织在人体内。通过用434 MHz射频能量照射在软组织中诱导热声信号。热声信号由安装在半球形碗上的换能器阵列检测。一个三维的，过滤反投影算法被用来重建软组织内的射频吸收模式。我们已经证明了软组织分化足以描绘正常的内部结构切除羔羊肾脏使用安全水平的射频辐射。(C)1999年美国医学物理学家协会。[S0094-2405（99）03009-6]。
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].