Real‐World Accuracy of a Continuous Glucose Monitoring System after Radiologic Exposure
Authors' conclusion
Scatter dose exposure from diagnostic imaging did not affect the clinical accuracy of CGM values for the duration of transmitter use. Leaving CGM components in place when not in the FoV during diagnostic imaging successfully mitigated interruptions to use and undue burden or cost to participants.
Study context
- Population
- Pediatric patients in the first 3 months after total pancreatectomy with islet autotransplantation (TPIAT), managing diabetes with insulin pump and continuous glucose monitor (CGM), routinely exposed to diagnostic imaging (X-ray, computed tomography (CT)) with CGM unshielded and outside the field of view (FoV)
- Participants
- 14 patients
- Outcome
- Absolute difference between matched CGM and glucometer values in relation to cumulative scatter dose (mixed models); Clarke error grid analysis
Methodological detailsScatter dose derived using anthropomorphic phantoms and calculated retrospectively
- Scatter dose derived using anthropomorphic phantoms and calculated retrospectively
Main finding
As reported in the abstract
- Not significantly associated with cumulative scatter dose (mixed model)
- p=0.17
- Not significantly associated with time from TPIAT (mixed model)
- p=0.24
- Glucose values within zones A and B on error grid analyses (EGA), regardless of scatter dose, time from TPIAT or glucometer
- ≥98%
Observational data: associations, not effects.
Further findings
Imaging exposure
- Diagnostic imaging procedures, median
- five
- Cumulative scatter dose, median
- 559 µGy
- Age, median
- 12.2 years
- Female
- 64%
Original publication
Real‐World Accuracy of a Continuous Glucose Monitoring System after Radiologic Exposure. Pediatr Diabetes. Published 7 August 2024. doi:10.
Composed by AI from the published abstract and checked against it. How Briefs are made →