| First Author | Hensley HH | Year | 2004 |
| Journal | Magn Reson Med | Volume | 52 |
| Issue | 3 | Pages | 524-9 |
| PubMed ID | 15334570 | Mgi Jnum | J:92889 |
| Mgi Id | MGI:3054697 | Doi | 10.1002/mrm.20175 |
| Citation | Hensley HH, et al. (2004) Detection and volume determination of colonic tumors in Min mice by magnetic resonance micro-imaging. Magn Reson Med 52(3):524-9 |
| abstractText | We applied MRI to the in vivo detection of spontaneous colorectal tumors in a unique mouse model, the Fox Chase Cancer Center (FCCC) Apc(MIN) mouse. Unlike other Min (multiple intestinal neoplasia) strains, FCCC Apc(MIN) animals develop an appreciable number of tumors in the large intestine, which makes them an appropriate mouse model for colon cancer in humans. We describe a method for marking the colon on MRI data sets that involves a bowel-cleansing procedure and the insertion of a polyurethane tube (filled with an MRI contrast agent) fully into the colon. We found that tumors as small as 1.5 mm in diameter can be consistently identified from MRI datasets with a voxel size of 0.1 mm x 0.133 mm x 0.133 mm. Tumor volumes were determined from the MRM data sets with the use of a novel approach to planimetry in 3D data sets. We observed a correlation between tumor volume (as measured from the MRI datasets) and tumor weight of 0.942, and a P-value of 0.008, based on Spearman's test. These data show that MRI can be used to accurately monitor tumor growth in mouse models of colorectal carcinogenesis. Magn Reson Med 52:524-529, 2004. Copyright 2004 Wiley-Liss, Inc. |
