ePrints@IIScePrints@IISc Home | About | Browse | Latest Additions | Advanced Search | Contact | Help

A remote temperature sensor for an ultrasound hyperthermia system using the acoustic signal derived from the heating signals

Mazumder, Dibbyan and Vasu, Ram Mohan and Roy, Debasish and Kanhirodan, Rajan (2018) A remote temperature sensor for an ultrasound hyperthermia system using the acoustic signal derived from the heating signals. In: INTERNATIONAL JOURNAL OF HYPERTHERMIA, 34 (1). pp. 122-131.

Full text not available from this repository. (Request a copy)
Official URL: http://dx.doi.org/10.1080/02656736.2017.1324178

Abstract

We demonstrate a non-invasive technique, based on the modal frequency shift of a region insonified by a dual-beam ultrasound (US) transducer (region of interest, ROI), to remotely assess the temperature of the region in a tissue-mimicking object. The application is in ultrasound hyperthermia systems for controlled maintenance of tumour temperature during chemotherapy. Towards this, we have characterised the variation of the storage modulus with the temperature of two tissue-mimicking visco-elastic materials. Due to this variation in tissue storage modulus (and viscosity), we have observed a shift in the resonant modes of the ROI, vibrated remotely with a dual-beam focussed ultrasound transducer. A modal analysis of the vibrating ROI is done to identify the modes captured by the detector. A variation in this modal frequency with temperature is computed and matches reasonably well with the experimental measurements. Through this, we demonstrate that an ultrasound hyperthermia system can have a remote temperature sensor without using an additional imaging modality.

Item Type: Journal Article
Additional Information: Copy right for the article belong toTAYLOR & FRANCIS LTD, 2-4 PARK SQUARE, MILTON PARK, ABINGDON OR14 4RN, OXON, ENGLAND
Department/Centre: Division of Mechanical Sciences > Civil Engineering
Division of Physical & Mathematical Sciences > Instrumentation Appiled Physics
Division of Physical & Mathematical Sciences > Physics
Depositing User: Id for Latest eprints
Date Deposited: 03 Apr 2018 18:26
Last Modified: 03 Apr 2018 18:26
URI: http://eprints.iisc.ac.in/id/eprint/59468

Actions (login required)

View Item View Item