Detection of
heated region's location and size by dynamical acoustical thermography
A. A. Anosov 1,2, A. S. Kazanskij 1, A. D.
Mansfel'd 3 , A. S. Sharakshane 1
1
Kotel'nikov Institute of Radio Engineering and Electronics of RAS
2
I. M. Sechenov First Moscow State Medical University
3
Institute of Applied Physics of RAS
Received
March 25, 2013
Abstract.
Size and location detection of heated region
which appears in result of medical procedures such as hyperthermia and thermoablation
is discussed. The region parameters are changed over time. The dynamical acoustical
thermography is proposed for their measurements. Computer simulation and natural
experiments are carried out. In these experiments the 1D and 3D reconstruction problems
are solved. In the 3D experiment two plane arrays are used. Each array consists
of 7 acoustical sensors. The arrays are perpendicular each other. It is shown that
the average time 10 s is enough to detect the size and location of heated region
with error about 1-3 mm. The obtained results are important for the temperature
control of the medical procedures connected with heat of the soft tissues of
the human body. The results of the paper were presented at Conference "Radars and Communications 6".
Keywords: thermal acoustic
radiation, dynamical acoustical thermography, temperature reconstruction.