Initial Study of Diagnostic Value of Diffusion Weighted Imaging in Pancreatic Cancer / 实用放射学杂志

ABSTRACT

Objective To evaluate the value of diffusion weighted imaging (DWI) and apparent diffusion coefficient(ADC) in diagnosing pancreatic carcinoma. Methods DWI was performed in 25 cases of pancreatic cancer, confirmed by pathology, and 20 normal persons. Five sequences of echo planar diffusion imaging were used, b value (?10-3s/mm2 ) was 50, 100, 300, 500, and 700 respectively. Then the ADC values in tumor area, non-tumor area and normal pancreatic area were calculated.Results ADC values of tumor tissue were significantly different from that of the tissue in the same pancreas, when b value were 100 and 300 s/mm2; there was statistically significantly difference between tumor group and normal group when b value were 100, 300, 500 and 700 s/mm2. ADC values of the tissue except for tumor tissue in the same pancreas were significant different from that of normal group when b value were 500 and 700 s/mm2. Conclusion DWI is a rapid and feasible method in detecting pancreatic cancer.