中国医疗设备Issue(9)：145-148,144,5.DOI:10.3969/j.issn.1674-1633.2014.09.058
新双源CT双能虚拟平扫技术在孤立性肺结节诊断中的应用价值
Application Value of New Dual-Source and Dual-Energy CT Virtual Scan in the Diagnosis of Solitary Pulmonary Nodule
李海文 1杨高忠1
作者信息
- 1. 山东省淄博矿业集团有限责任公司中心医院CT/MR科，山东淄博255120
- 折叠
摘要
Abstract
Objective To explore the clinical value of new dual-energy CT dual-source virtual scan in the diagnosis of solitary pulmonary nodule (SPN). Methods 49 patients with SPNs treated in our hospital from January 2013 to May 2014 were examined by CT conventional scan and dual-energy enhancement scan. Then the virtual scan images, iodine images and single energy images were obtained through softwares. The CT values, noises, signal to noise ratios, diameters of SPNs, calciifcation detection rates, enhancement values, CT values of iodine images, diagnostic accuracies, slopes of spectrum curves, ratios of iodine-based value and radiation doses were compared between real scan and virtual scan. Results There were no signiifcant differences between the two scan methods on CT value, noise, signal to noise ratio and SPN diameter (P>0.05). There were significant differences between the two scan methods on enhancement value and CT value (P<0.05). The calciifcation detection rate of virtual scan was 93.02%according to real scan. The speciifcity of virtual scan in diagnosing SPNs was 92.86%while the sensitivity and accuracy of CT values of iodine images in diagnosing SPNs were 77.14﹪and 71.43﹪. The slops of spectrum curves of benign SPNs and malignant SPNs were (0.72±0.34) and (1.02±0.59). The iodine base value ratios of benign SPNs and malignant SPNs were (0.27±0.11) and (0.22±0.08). There were no differences between benign SPNs and malignant SPNs on the slop of spectrum curves and iodine base value ratio (P>0.05). There were no signiifcant differences between conventional scan and enhancement scan on radiation dose (P>0.05). Conclusion The new dual-source and dual-energy CT virtual scan is important for the differential diagnosis of benign SPNs and malignant SPNs.关键词
双源CT/双能虚拟平扫/孤立性肺结节/碘图CT值Key words
dual-source CT/dual-energy virtual scan/solitary pulmonary nodules分类
医药卫生引用本文复制引用
李海文,杨高忠..新双源CT双能虚拟平扫技术在孤立性肺结节诊断中的应用价值[J].中国医疗设备,2014,(9):145-148,144,5.
