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Proceedings Paper

Calibration of temperature measurements with CT for ablation of liver tissue
Author(s): G. D. Pandeya; M. J. W. Greuter; B. Schmidt; T. G. Flohr; M. Oudkerk
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Paper Abstract

The purpose of this study was to determine the relationships between the CT value and temperature for the range of ablation therapy. Bovine liver was slowly heated and image acquisition was performed with a clinical CT. Real time temperature was measured and stored using calibrated thermal sensors. Images were analyzed at CT workstation. It was feasible to validate the spatial and temporal temperature growth during heating by means of declining CT values in the performed images. The thermal sensitivity for liver tissue was -0.54±0.10 HU/oC. It is concluded that CT can be calibrated to predict temperature distribution during heating.

Paper Details

Date Published: 23 February 2010
PDF: 8 pages
Proc. SPIE 7625, Medical Imaging 2010: Visualization, Image-Guided Procedures, and Modeling, 76250U (23 February 2010); doi: 10.1117/12.844313
Show Author Affiliations
G. D. Pandeya, Siemens Medical Solutions (Germany)
Univ. Medical Ctr. Groningen (Netherlands)
M. J. W. Greuter, Univ. Medical Ctr. Groningen (Netherlands)
B. Schmidt, Siemens Medical Solutions (Germany)
T. G. Flohr, Siemens Medical Solutions (Germany)
M. Oudkerk, Univ. Medical Ctr. Groningen (Netherlands)

Published in SPIE Proceedings Vol. 7625:
Medical Imaging 2010: Visualization, Image-Guided Procedures, and Modeling
Kenneth H. Wong; Michael I. Miga, Editor(s)

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