Head and Neck Imaging
Application Value Study of Spectral CT Imaging on Differential Diagnosis of Benign and Malignant of SPN*
Author：GUO Jian-bo
affiliation：Affiliated Meizhou Hospital of SUN Yat-sen University (People's Hospital of Meizhou), Meizhou 514000, Guangdong Province, China
PDFAbstract
Objective To investigate the application value of spectral CT imaging on differential diagnosis of benign and malignant of SPN. Methods 51 cases in our hospital from January 2013 to July 2016 were selected and retrospectively analyzed. Patients were all given precious stones energy spectrum CT scan and dual-phase enhanced scanning and then diagnose by surgery, fiber bronchial biopsy and aspiration biopsy. Results Of 51 cases, 24 cases in BSPN group and 27 cases in malignant SPNs group. NIC and standardized concentration difference of BSPN group were lower than malignant SPNs group, the difference was statistically significant (P<0.05). Dual scan in arterial phase had the highest accuracy rate on differential diagnosis of benign and malignant of SPN. In venous phase, specificity was 100% when standardized concentration threshold was 0.412 or 0.265. Specificity was 85.35% when standardized concentration threshold was 0.161. Conclusion Spectral CT imaging has important application value on differential diagnosis of benign and malignant of SPN.
【Keyword】Energy Spectrum CT; Retrospective Analysis; SPN; Differential Diagnosis
【Chart number】R445.3；R734.2
【Document Identification Number】A
【DOI】 10.3969/j.issn.1672- 5131.2017.02.018
Chinese journal of CT and MRI
th15Volume， th 2 Issue
2017Year02Month
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