Noninvasive temperature monitoring using ultrasound tissue characterization method

Petr Novak; Lubomir Pousek; Petr Schreib; Peter Peschke; Jan Vrba; Ivan Zuna

doi:10.1117/12.428237

30 May 2001 Noninvasive temperature monitoring using ultrasound tissue characterization method

Petr Novak, Lubomir Pousek, Petr Schreib, Peter Peschke, Jan Vrba, Ivan Zuna

Proceedings Volume 4325, Medical Imaging 2001: Ultrasonic Imaging and Signal Processing; (2001) https://doi.org/10.1117/12.428237
Event: Medical Imaging 2001, 2001, San Diego, CA, United States

Abstract

Microwave thermotherapy (MT) is an oncological treatment. At present the invasive thermometer probes are clinically used for temperature measuring during an MT. Any invasive handling of tumors is of high-risk. A new method of noninvasive monitoring of temperature distribution in tissue has been developed. An MT treatment of the experimentally induced pedicle-tumors of the rat was prepared. It consists of an intelligent regulation loop controlling a high frequency (HF) generator according to the maximal measured temperature in the tissue and a special HF MT applicator. The loop is also equipped with an invasive thermometer (4 invasive probes). During the MT treatment the series of ultrasound B-mode images were obtained. The texture parameters were evaluated form the obtained ultrasound images. These parameters were correlated with the invasively measured temperature during the MT session. For 60 rat samples a strong correlation between the mean gray level in the ROIs in the ultrasound pictures and the invasively measured temperature in the range 37-44 degree(s)C (98.6-111.2 F) was found. The correlation coefficient of the mean gray level and the invasively measured temperature is 0.96+/- 0.05. A system for representation of changes of spatial temperature distribution of the whole tumor during MT will be presented.

Citation Download Citation

Petr Novak, Lubomir Pousek, Petr Schreib, Peter Peschke, Jan Vrba, and Ivan Zuna "Noninvasive temperature monitoring using ultrasound tissue characterization method", Proc. SPIE 4325, Medical Imaging 2001: Ultrasonic Imaging and Signal Processing, (30 May 2001); https://doi.org/10.1117/12.428237

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available