Calibration of temperature measurements with CT for ablation of liver tissue

G. D. Pandeya; M. J. W. Greuter; B. Schmidt; T. G. Flohr; M. Oudkerk

doi:10.1117/12.844313

23 February 2010 Calibration of temperature measurements with CT for ablation of liver tissue

G. D. Pandeya, M. J. W. Greuter, B. Schmidt, T. G. Flohr, M. Oudkerk

Proceedings Volume 7625, Medical Imaging 2010: Visualization, Image-Guided Procedures, and Modeling; 76250U (2010) https://doi.org/10.1117/12.844313
Event: SPIE Medical Imaging, 2010, San Diego, California, United States

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.

Citation Download Citation

G. D. Pandeya, M. J. W. Greuter, B. Schmidt, T. G. Flohr, and M. Oudkerk "Calibration of temperature measurements with CT for ablation of liver tissue", Proc. SPIE 7625, Medical Imaging 2010: Visualization, Image-Guided Procedures, and Modeling, 76250U (23 February 2010); https://doi.org/10.1117/12.844313

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