An approach to rapid calculation of temperature change in tissue using spatial filters to approximate effects of thermal conduction.
IEEE Trans Biomed Eng
; 60(6): 1735-41, 2013 Jun.
Article
en En
| MEDLINE
| ID: mdl-23358947
ABSTRACT
We present an approach to performing rapid calculations of temperature within tissue by interleaving, at regular time intervals, 1) an analytical solution to the Pennes (or other desired) bioheat equation excluding the term for thermal conduction and 2) application of a spatial filter to approximate the effects of thermal conduction. Here, the basic approach is presented with attention to filter design. The method is applied to a few different cases relevant to magnetic resonance imaging, and results are compared to those from a full finite-difference (FD) implementation of the Pennes bioheat equation. It is seen that results of the proposed method are in reasonable agreement with those of the FD approach, with about 15% difference in the calculated maximum temperature increase, but are calculated in a fraction of the time, requiring less than 2% of the calculation time for the FD approach in the cases evaluated.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Conductividad Térmica
/
Temperatura Corporal
/
Imagen por Resonancia Magnética
/
Modelos Biológicos
Límite:
Humans
Idioma:
En
Revista:
IEEE Trans Biomed Eng
Año:
2013
Tipo del documento:
Article
País de afiliación:
Estados Unidos