Med Biol Eng Comput - Measurement of bioelectric and acoustic profile of breast tissue using hybrid magnetoacoustic method for cancer detection.

Tópicos

{ cancer(2502) breast(956) screen(824) }
{ imag(2675) segment(2577) method(1081) }
{ method(2212) result(1239) propos(1039) }
{ perform(999) metric(946) measur(919) }
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{ care(1570) inform(1187) nurs(1089) }
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Resumo

This paper proposes a novel hybrid magnetoacoustic measurement (HMM) system aiming at breast cancer detection. HMM combines ultrasound and magnetism for the simultaneous assessment of bioelectric and acoustic profiles of breast tissue. HMM is demonstrated on breast tissue samples, which are exposed to 9.8?MHz ultrasound wave with the presence of a 0.25 Tesla static magnetic field. The interaction between the ultrasound wave and the magnetic field in the breast tissue results in Lorentz Force that produces a magnetoacoustic voltage output, proportional to breast tissue conductivity. Simultaneously, the ultrasound wave is sensed back by the ultrasound receiver for tissue acoustic evaluation. Experiments are performed on gel phantoms and real breast tissue samples harvested from laboratory mice. Ultrasound wave characterization results show that normal breast tissue experiences higher attenuation compared with cancerous tissue. The mean magnetoacoustic voltage results for normal tissue are lower than that for the cancerous tissue group. In conclusion, the combination of acoustic and bioelectric measurements is a promising approach for breast cancer diagnosis.

Resumo Limpo

paper propos novel hybrid magnetoacoust measur hmm system aim breast cancer detect hmm combin ultrasound magnet simultan assess bioelectr acoust profil breast tissu hmm demonstr breast tissu sampl expos mhz ultrasound wave presenc tesla static magnet field interact ultrasound wave magnet field breast tissu result lorentz forc produc magnetoacoust voltag output proport breast tissu conduct simultan ultrasound wave sens back ultrasound receiv tissu acoust evalu experi perform gel phantom real breast tissu sampl harvest laboratori mice ultrasound wave character result show normal breast tissu experi higher attenu compar cancer tissu mean magnetoacoust voltag result normal tissu lower cancer tissu group conclus combin acoust bioelectr measur promis approach breast cancer diagnosi

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