使用微波断层扫描仪进行医学成像。

Medical imaging with a microwave tomographic scanner.

作者信息

Jofre L, Hawley M S, Broquetas A, de los Reyes E, Ferrando M, Elias-Fusté A R

机构信息

ETSE Telecommunicació, Universitat Politécnica de Catalunya, Barcelona, Spain.

出版信息

IEEE Trans Biomed Eng. 1990 Mar;37(3):303-12. doi: 10.1109/10.52331.

DOI:10.1109/10.52331

PMID:2329003

Abstract

A microwave tomographic scanner for biomedical applications is presented. The scanner consists of a 64 element circular array with a useful diameter of 20 cm. Electronically scanning the transmitting and receiving antennas allows multiview measurements with no mechanical movement. Imaging parameters are appropriate for medical use: a spatial resolution of 7 mm and a contrast resolution of 1% for a measurement time of 3 s. Measurements on tissue-simulating phantoms and volunteers, together with numerical simulations, are presented to assess the system for absolute imaging of tissue distribution and for differential imaging of physiological, pathological, and induced changes in tissues.

摘要

本文介绍了一种用于生物医学应用的微波断层扫描仪。该扫描仪由一个64元圆形阵列组成，有效直径为20厘米。通过对发射和接收天线进行电子扫描，可以在无机械移动的情况下进行多视角测量。成像参数适用于医学用途：空间分辨率为7毫米，对比度分辨率为1%，测量时间为3秒。文中展示了在组织模拟体模和志愿者身上的测量结果，以及数值模拟，以评估该系统用于组织分布的绝对成像以及组织中生理、病理和诱导变化的差异成像。