Abstract

Quantifying tumor burden is important for following the natural history of orthotopic colon cancer and therapeutic efficacy. Bioluminescence imaging (BLI) is commonly used for such assessment and has both advantages and limitations. We compared BLI and magnetic resonance imaging (MRI) for quantifying orthotopic tumors in a mouse model of colon cancer. Among sequences tested, T2-based MRI imaging ranked best overall for colon cancer border delineation, contrast, and conspicuity. Longitudinal MRI detected tumor outside the colon, indistinguished by BLI. Colon tumor weights calculated from MRI in vivo correlated highly with tumor weights measured ex vivo whereas the BLI signal intensities correlated relatively poorly and this difference in correlations was highly significant. This suggests that MRI may more accurately assess tumor burden in longitudinal monitoring of orthotopic colon cancer in this model as well as in other models.

Details

Title
Magnetic Resonance Imaging and Bioluminescence Imaging for Evaluating Tumor Burden in Orthotopic Colon Cancer
Author
Ravoori, M K 1 ; Margalit, O 2 ; Singh, S 1 ; Sun-Hee, Kim 3 ; Wei, W 4 ; Menter, D G 5 ; DuBois, R N 6 ; Kundra, V 7 

 The University of Texas MD Anderson Cancer Center, Department of Cancer Systems Imaging, Houston, USA (GRID:grid.240145.6) (ISNI:0000 0001 2291 4776) 
 Tel-Aviv University, Department of Oncology, Chaim Sheba Medical Center, Sackler School of Medicine, Tel-HaShomer, Israel (GRID:grid.12136.37) (ISNI:0000 0004 1937 0546) 
 The University of Texas MD Anderson Cancer Center, Department of Melanoma Medical Oncology, Houston, USA (GRID:grid.240145.6) (ISNI:0000 0001 2291 4776) 
 U.T.-M.D. Anderson Cancer Center, Department of Biostatistics, Houston, USA (GRID:grid.240145.6) (ISNI:0000 0001 2291 4776) 
 Division of Cancer Medicine, U.T.-M.D. Anderson Cancer Center, Department of Gastrointestinal Medical Oncology, Houston, USA (GRID:grid.240145.6) (ISNI:0000 0001 2291 4776) 
 MUSC College of Medicine, Dean’s Office, Charleston, USA (GRID:grid.259828.c) (ISNI:0000 0001 2189 3475) 
 The University of Texas MD Anderson Cancer Center, Department of Cancer Systems Imaging, Houston, USA (GRID:grid.240145.6) (ISNI:0000 0001 2291 4776); U.T.-M.D. Anderson Cancer Center, Department of Radiology, Houston, USA (GRID:grid.240145.6) (ISNI:0000 0001 2291 4776) 
Publication year
2019
Publication date
2019
Publisher
Nature Publishing Group
e-ISSN
20452322
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2210008895
Copyright
© The Author(s) 2019. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.