International Journal of Clinical Research

Objective To analyze the medical value of low-dose CT scanning technology in head and neck CT angiography. Methods A total of 62 patients with suspected head and neck arterial vascular lesions who were treated between January 2022 and December 2023 were selected as the study subjects. Low dose CT scans and conventional CT scans were performed to compare image quality and radiation dose. Results The difference in CNR between low-dose CT scans and conventional CT scans was not statistically significant (P>0.05). The SNR of low-dose CT scan is lower than that of conventional dose, and the attenuation value and noise are higher than those of conventional dose. The radiation dose of low-dose CT scan is lower, and the comparison is statistically significant (P<0.05). Conclusion Low dose CT scanning technology has slightly lower image quality and higher noise, but it has the advantage of low radiation and certain practical value, making it suitable for large-scale scanning.

Low dose CT scanning technology; Head and neck CT angiography; CT; Imaging technology; Radiation dosage; Tube voltage; Tube current