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Updated: Jul 9, 2025

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Is work overload associated with diagnostic errors on 18F-FDG-PET/CT?

Romy Toxopeus1, Ömer Kasalak1, Derya Yakar1

  • 1Medical Imaging Center, Departments of Radiology and Nuclear Medicine, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.

European Journal of Nuclear Medicine and Molecular Imaging
|November 29, 2023
PubMed
Summary

Work overload is linked to diagnostic errors in 18F-FDG-PET/CT scans. These errors occurred throughout the day, not just at the end, indicating workload impacts accuracy.

Keywords:
18F-FDGComputed tomographyDiagnostic errorsPET-CTWorkload

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Area of Science:

  • Nuclear Medicine
  • Radiology
  • Medical Imaging Analysis

Background:

  • Diagnostic errors in medical imaging can impact patient care.
  • Workload is a potential contributing factor to errors in radiology and nuclear medicine.

Purpose of the Study:

  • To investigate the association between workload and diagnostic errors in 18F-FDG-PET/CT interpretation.
  • To determine if diagnostic errors on 18F-FDG-PET/CT are more frequent during periods of high workload.

Main Methods:

  • Retrospective analysis of 103 18F-FDG-PET/CT scans with corrected diagnostic errors.
  • Normalized workload (workload_normalized) was calculated for physicians on the day of the error.
  • Statistical tests (signed rank sum, Mann-Kendall) were used to compare workload to 100% and assess error trends over the day.

Main Results:

  • The median normalized workload on days with diagnostic errors was 121%, significantly higher than 100% (P=0.014).
  • No significant trend of increasing diagnostic errors was observed throughout the workday (Mann-Kendall tau=0.05, P=0.7294).

Conclusions:

  • Work overload appears to be associated with an increased risk of diagnostic errors in 18F-FDG-PET/CT.
  • Diagnostic errors occurred across the entire workday, suggesting continuous vigilance is necessary regardless of time.