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Titolo:
THE IMPEDIVITY OF FRESHLY EXCISED HUMAN BREAST-TISSUE
Autore:
JOSSINET J;
Indirizzi:
INSERM U281,151 COURS ALBERT THOMAS F-69424 LYON 03 FRANCE
Titolo Testata:
Physiological measurement
fascicolo: 1, volume: 19, anno: 1998,
pagine: 61 - 75
SICI:
0967-3334(1998)19:1<61:TIOFEH>2.0.ZU;2-L
Fonte:
ISI
Lingua:
ENG
Soggetto:
DIELECTRIC-PROPERTIES; BIOLOGICAL-MATERIALS;
Keywords:
ELECTRICAL IMPEDANCE SPECTROSCOPY; IMPEDIVITY; ADMITTIVITY; EXCISED TISSUE; BREAST CANCER;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
22
Recensione:
Indirizzi per estratti:
Citazione:
J. Jossinet, "THE IMPEDIVITY OF FRESHLY EXCISED HUMAN BREAST-TISSUE", Physiological measurement, 19(1), 1998, pp. 61-75

Abstract

A set of 120 impedivity spectra was collected in breast tissue immediately after excision from 64 patients undergoing breast surgery. The measurements were made at 12 discrete frequencies halving from 1 MHz to488 Hz. The spectra were sorted into three groups of normal tissue, mammary gland, connective tissue and adipose tissue, and three groups of pathological tissue, mastopathy, fibroadenoma and carcinoma. Intergroup multiple comparisons of the components of impedivity and admittivity were systematically carried out at every measurement frequency. Thelow-frequency-limit resistivity, the fractional power and characteristic frequencies were calculated from the experimental data. No significant correlation between impedivity and admittivity and patient's age was observed, except for mastopathy. No significant difference betweengroups of normal tissue and benign pathology (mammary gland, mastopathy and fibroadenoma) was found. The group of carcinoma differed from all the other groups principally by the low-frequency-limit resistivity, the fractional power and the phase angle at frequency above 125 kHz. These results indicate that impedance spectroscopy is appropriate forthe detection of breast cancer.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 21/09/20 alle ore 12:43:59