Objective: To evaluate the radiation dose and image quality of chest energy spectrum imaging and conventional CT scanning. Methods: Forty-five patients who underwent chest CT examination from September 2017 to June 2018 in our hospital were selected as subjects. All patients underwent routine CT scan and chest energy spectrum imaging. Differences in radiation doses were compared to determine the best scanning method. Results: CTDlvol, DLP, ED and conventional arterial phase imaging of conventional CT were compared. The difference was not statistically significant(P>0.05). The above indexes of conventional CT plain scan were compared with energy spectrum venous imaging. There was significant statistical difference(P<0.05);there was no statistical difference between the image noise score, the overall image quality score and the energy spectrum of the conventional CT scan (P>0.05), and the venous phase imaging of the energy spectrum. There was statistical significance(P<0.05). Conclusion: Compared with conventional CT scan, the radiation dose of thoracic artery phase spectrum imaging is equivalent. Although the radiation dose of thoracic venous phase imaging is higher, the image quality is good, and the clinical scanning method can be reasonably selected according to the patient’s condition.
Conventional CT Scan
Chest Energy Spectrum Imaging