Clinical application value of dual-source dual-energy CT scanning technology for tumor of thorax / 肿瘤研究与临床

ABSTRACT

Objective To investigate the clinical applications of dual-source dual-energy CT and dual-energy virtual unenhanced iodine distribution technology in thoracic tumor scans.Methods CT and clinical data of 58 cases of patients with thorax tumor were analyzed.The quality score,the noise,the average lesion CT values and radiation dose were compared between dual-energy group virtual unenhanced and conventional unenhanced image.The lesion benign and malignant differential diagnosis by strengthen the distribution of iodine value in dual-energy group and strengthen the value of manual measurement in conventional CT group were compared.Results The quality scores in virtual unenhanced and conventional unenhanced image were (4.62±0.52) and (4.71±0.46) points (t =2.319,P ＞ 0.05).The noise in virtual unenhanced images and conventional unenhanced image were (8.10±1.16) and (7.30±1.06) HU (t =5.246,P＜ 0.05).The effective dose in virtual unenhanced and in conventional plain were (5.18±0.96) and (5.55±1.18) mSv (t =4.005,P ＜ 0.05).CT value distribution of iodine was correlated with enhanced CT values.Conclusions The virtual unenhanced images can show well lung disease,which meet the diagnostic requirements and may be instead of the conventional plain chest potential value.Dual-energy iodine distribution of lesions can observe blood supply more directly and more sensitively,can quantityze expression of the extent of the lesions enhanced to provide richer information for clinical diagnosis of tumor lesions.