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Title: Prognostic value of different CT measurements in early therapy response evaluation in patients with metastatic colorectal cancer
Authors: Huellner, M.W.
Hennedige, T.P.
Winterhalder, R.
Zander, T.
Venkatesh, S.K.
Yong, W.P. 
Soo, R.A. 
Seifert, B.
Treumann, T.C.
Strobel, K.
Veit-Haibach, P.
Keywords: Colorectal cancer
CT measurement
Therapy response
Tumor response
Issue Date: 2012
Citation: Huellner, M.W., Hennedige, T.P., Winterhalder, R., Zander, T., Venkatesh, S.K., Yong, W.P., Soo, R.A., Seifert, B., Treumann, T.C., Strobel, K., Veit-Haibach, P. (2012). Prognostic value of different CT measurements in early therapy response evaluation in patients with metastatic colorectal cancer. Cancer Imaging 12 (1) : 212-224. ScholarBank@NUS Repository.
Abstract: Objectives: Patients with advanced stage colorectal carcinoma (CRC) display hepatic metastases on initial staging in up to 20% of cases. The effectiveness of chemotherapy is generally evaluated by computed tomography (CT) imaging using standardized criteria (RECIST). However, RECIST is not always optimal, and other criteria have been shown to correlate with pathologic response and overall survival. The aim of this study was to evaluate the prognostic value of different CT measurement for response assessment after initiation of chemotherapy in patients with synchronous colorectal cancer liver metastases. Methods: Fifty-five patients with CRC and synchronous hepatic metastases were evaluated retrospectively at 2 academic centers. Different size, volume, ratio and attenuation parameters were determined at baseline and after 3 cycles of chemotherapy. The prognostic value of baseline measurements and of the change between baseline and second measurements was analyzed using Kaplan-Meier estimates. Results: Median time to progression was 279 days, median overall survival was 704 days. In this selective patient population, neither a significant prognostic value of initial baseline CT parameters nor a prognostic value of the change between the first and the second CT measurements was found. Conclusion: Initial morphological response assessment using different CT measurements has no prognostic value concerning time to progression or overall survival in patients with synchronous colorectal liver metastases. © 2012 International Cancer Imaging Society.
Source Title: Cancer Imaging
ISSN: 14707330
DOI: 10.1102/1470-7330.2012.0021
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