Room: Exhibit Hall | Forum 1
Purpose: To audit and determine radiation dose utilization for fluoroscopy procedures performed with mobile C-Arms or performed in radiography/fluoroscopy (R/F) suite at a tertiary and quaternary care hospital.
Methods: IRB approved this retrospective study. All fluoroscopy procedures performed with any one of the 14 mobile C-Arms (GE:OECs, Philips:Veradius, Ziehm:Vision-R) or in an R/F suite (Siemens:Axiom-Iconos-200) from July-2017 till June-2018 were reviewed. Mobile C-Arms were used for surgical, orthopedic, pain-management, gastroenterology and urology procedures. All cases with system-reported cumulative air kerma (CAK) were included in the study. For the included cases, patientsâ€™ BMI, age and gender, along with fluoroscopy time for each procedure were also recorded. Descriptive statistics were computed from this data-set (using IBMâ€™s SPSS Statistics) to characterize radiation utilization for different procedures.
Results: Data from 1122 cases were included (53% female and 47% male patients; mean age:53.9Â±17.9years; mean BMI:28.4Â±6.7). The mean (Â±standard deviation) and median CAK values for radiology procedures (n=102; e.g., arthrograms, aspirations, etc.) performed with mobile C-Arms were 16.5(Â±54.4)mGy and 2.39mGy, respectively. For surgical procedures performed in the operating room (n=549) the mean and median CAK values were 36.8(Â±79.6)mGy and 11.4mGy, respectively. Mean and median CAK values were 65.2(Â±90.2)mGy and 32.7mGy for gastroenterology procedures (n=98), 16.1(Â±14.6)mGy and 12.4mGy for urology procedures (n=24), and 46.3(Â±84.0)mGy and 28.8mGy for pain-management procedures (n=146) performed in neurosurgery department. For procedures performed in the R/F suite (n=203), the mean and median CAK values were 168.2(Â±262.1)mGy and 72.6mGy. Depending upon the type of procedure, the mean fluoroscopy time ranged from 71 to 497 secs.
Conclusion: Data indicates that with mobile C-Arms or R/F suite the radiation utilization for routine procedures is an order of magnitude lower relative to threshold radiation dose values recommended for patient follow-up. Thus, monitoring such low radiation dose values may not be optimal use of healthcare resources.