To compare and analyze the results of 16-row mobile CT in ICU bedside and vehicle-mounted scanning.

A total of 661 cases of head scanning were made with domestic 16-row mobile CT from December 1, 2017 to November 30, 2019 in neurosurgery department of Edberg Hospital, including 27 cases of bedside scanning in ICU (ICU group) and 634 cases of vehicle-mounted scanning (vehicle-mounted group). The positive diagnostic rates of the two groups of subjects were counted respectively. The imaging quality, incidence of motion artifacts, examination time and radiation dose were analyzed by comparing 30 randomly selected vehicle-mounted scanners with 27 bedside head scans in ICU.

ICU group had 27 cases of mobile CT head scan with the positive diagnosis, vehicle-mounted group had 634 cases, and with the positive diagnosis 419 cases. The imaging quality of the ICU group (27 cases) and the vehicle-mounted group (30 cases) was good. The imaging quality of the ICU group (7.41%) and vehicle-mounted group (16.67%) with linear motion artifacts on the skull base was good. The length of bedside scanning in the ICU group was 10.6 min, 19.4 min, and 15.68 min on average. On-board scanning takes the shortest time of 15.9 min and the longest time of 37.4 min, with an average of 26.40 min. The effective volume dose CTDIvol of 16-row mobile CT head scan of adult was (34.55±4.08) mGy and (0.80±0.06) mSv.

16-row mobile CT in ICU bedside scanning and vehicle-mounted scanning imaging quality is reliable, the examination time is short, radiation dose is low, and the use is safe.