Head and Neck Imaging

Preliminary Study on the Quantitative Analysis of Iodine with Dual Energy CT for Pulmonary Parenchymal Perfusion

Author:WANG Yue, GAO Li, ZHANG Xiao-dong,et al.

affiliation:Department of Medical Imaging, Peking University First Hospital, Beijing 100034, China

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Abstract

Objective To evaluate the value for quantitative analysis of the iodine concentration in pulmonary parenchymal with dual-energy CT perfusion imaging. Methods 15 patients without cardiac and pulmonary abnormality were accepted the dual-energy CT scanning. The data was post-processed on Siemens workstation to obtain PBV images, the iodine concentrate were calculated, which of the different area in pulmonary parenchymal were analyzed. Results Mean of iodine content in the ventral was significantly lower than the ipsilateral dorsal lung at same horizontal position; Meanwhile, the mean of iodine content in the left was higher than the right lung at the same horizontal position, however there were no significant differences between the two regions (P>0.05). Conclusion The iodine concentrate of PBV is sensitive to the perfusion difference of the pulmonary parenchymal with dual-energy CT perfusion imaging.

【Keyword】Pulmonary Perfusion; Iodine Content; CT; Dual Energy

【Chart number】R322.3+5

【Document Identification Number】A

【DOI】10.3969/j.issn.1672-5131.2018.08.014