Efficacy of Colour Coded Iodine Maps in Colorectal Cancers

Harshali Shetty, Ranjan Shetty, Ganesh Khandige

Abstract: Dual Energy CT with colour coded iodine maps can be used for characterizing colorectal lesions, stage the disease, plan appropriate therapeutic regimens and follow up on periodic basis. It simultaneously acquires images at 2 energy levels in a single acquisition, thereby reduces the scan time and helps in reducing radiation dose to the patient.45 enrolled patients underwent single venous phase acquisition CECT abdomen. Data was transferred to Syngovia postprocessing system. ROI was placed in the lesion which had the highest visible enhancement on colour coded images. An overall sensitivity and specificity of about 94 % and 82 % respectively was found using this technique.

Keywords: Dual Energy CT, colour coded iodine maps, colorectal