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Abstract #4758

Quantitative Analysis of Indexes from DWI and PET/CT in Primary Rectal Cancer

Jing Gu1, Pek-lan Khong1, Silun Wang1, Queenie Chan2, Wailun LAW3, Rico Kingyin Liu3, Jingbo Zhang1

1Diagnostic Radiology, The University of Hong Kong, Hong Kong, Hong Kong; 2Philips Healthcare, Philips Electronics Hong Kong Limited, Hong Kong, Hong Kong; 3Division of Colorectal Surgery, The University of Hong Kong, Hong Kong, Hong Kong

We aim to assess the correlations between parameters apparent diffusion coefficient (ADC) measured by DWI and standardized uptake value (SUV) measured by 18F-FDG PET in rectal caner. Significant negative correlations were found between ADC and SUV in primary rectal adenocarcinomas. ADC may thus have the potential as a useful biomarker in oncologic imaging.