Euroasian journal of hepato-gastroenterology

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VOLUME 1 , ISSUE 2 ( July-December, 2011 ) > List of Articles


Gemstone Spectral Monochromatic CT Imaging: Detection and Classification of Focal Liver Lesions in Patients with Pancreatic Cancer

Hu Shengping, Wang Mingliang, Wu Zhiyuan, Zhao Xuesong, Miao Fei

Citation Information : Shengping H, Mingliang W, Zhiyuan W, Xuesong Z, Fei M. Gemstone Spectral Monochromatic CT Imaging: Detection and Classification of Focal Liver Lesions in Patients with Pancreatic Cancer. Euroasian J Hepatogastroenterol 2011; 1 (2):77-82.

DOI: 10.5005/jp-journals-10018-1017

License: CC BY-NC 4.0

Published Online: 01-01-2011

Copyright Statement:  Copyright © 2011; The Author(s).


Objective: To analyze the diagnostic performance of gemstone spectral monochromatic CT imaging in the detection and classification of focal liver lesions in patients with pancreatic cancer. Methods: We retrospectively studied 32 pancreatic cancer patients with 55 focal liver lesion images (19 cysts and 36 metastases) conducted by gemstone spectral CT. We obtained the focal liver lesions and the pancreatic iodine concentration from the iodine-based material decomposition images. This was further normalized to that of aorta. Receiver-operator characteristic curves to determine the diagnostic sensitivities and specificities of correctly diffentiating liver metastases from cysts were calculated. Imaging results were correlated with findings of intraoperative surgical (n = 13), imaging follow-up, ultrasound findings and percutaneous ethanol therapy (n = 19). Results: Gemstone spectral CT played a significant role in differentiating focal liver metastases from liver cysts. The parameters we drew could provide extra quantitative data. Conclusion: The gemstone spectral monochromatic CT scanner provides not only the processed polychromatic images, including arterial and portal phase images, but also extra quantitative data.

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