INVIVO DIELECTRIC SPECTROMETER

被引：61

作者：

SINGH, B

SMITH, CW

HUGHES, R

机构：

[1] UNIV SALFORD,DEPT ELECT ENGN,SALFORD M5 4WT,LANCASHIRE,ENGLAND

[2] ROYAL ALBERT EDWARD INFIRM,WIGAN,LANCASHIRE,ENGLAND

来源：

MEDICAL & BIOLOGICAL ENGINEERING & COMPUTING | 1979年 / 17卷 / 01期

关键词：

Biomedical dielectrics; Breast tumours; Fourier transforms; In vivo measurements;

D O I：

10.1007/BF02440953

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

An instrument is described for measuring the relative permittivity and dielectric loss of body tissues and organs in vivo, over the frequency range 0·1 Hz to about 100 kHz. A voltage transient is applied by means of suitable electrodes and the resulting waveform is sampled, digitised and Fourier transformed using a microprocessor to give a spectrum in the frequency domain. The results show differences in relative permittivity and dielectric loss between different types of tissue. Much of the preliminary clinical work with this apparatus has been done using measurements on breast tumours. © 1979 IFMBE.

引用

页码：45 / 60

页数：16

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