Hyun Kyung Yang1, Yousun Ko1, Min Hee Lee2, Hyunsik Woo3, Soyeon Ahn4, Bohyoung Kim1, Perry J Pickhardt5, Mi Sung Kim6, Sung Bin Park7, Kyoung Ho Lee1,8. 1. 1 Department of Radiology, Seoul National University Bundang Hospital, Gyeonggi-do, Korea. 2. 2 Department of Radiology, Soonchunhyang University Bucheon Hospital, Soonchunhyang University College of Medicine, 170 Jomaru-ro, Wonmi-gu, Bucheon-si, Gyeonggi-do, 420-767, Korea. 3. 3 Department of Radiology, SMG-SNU Boramae Medical Center, Seoul, Korea. 4. 4 Division of Statistics, Medical Research Collaborating Center, Seoul National University Bundang Hospital, Gyeonggi-do, Korea. 5. 5 Department of Radiology, University of Wisconsin School of Medicine and Public Health, Madison, WI. 6. 6 Department of Radiology, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea. 7. 7 Department of Radiology, Chung-Ang University Hospital, Chung-Ang University College of Medicine, Seoul, Korea. 8. 8 Program in Biomedical Radiation Sciences, Department of Transdisciplinary Studies, Graduate School of Convergence Science and Technology, Seoul National University, Seoul, Korea.
Abstract
OBJECTIVE: The objective of our study was to prospectively evaluate the initial diagnostic performance and learning curve of a community of radiologists and residents in interpreting 2-mSv appendiceal CT. SUBJECTS AND METHODS: We included 46 attending radiologists and 153 radiology residents from 22 hospitals who completed an online training course of 30 2-mSv CT cases. Appendicitis was confirmed in 14 cases. Most of the readers had limited (≤ 10 cases, n = 32) or no (n = 118) prior experience with low-dose appendiceal CT. The order of cases was randomized for each reader. A multireader multicase ROC analysis was performed. Generalized estimating equations were used to model the learning curves in diagnostic performance. RESULTS: Diagnostic performance gradually improved with years of training. The average AUC was 0.94 (95% CI, 0.90-0.98), 0.92 (0.88-0.96), 0.90 (0.85-0.96), and 0.86 (0.80-0.92) for the attending radiologists, senior residents, 2nd-year residents, and 1st-year residents, respectively. We did not observe any notable intrareader learning curves over the training course of the 30 cases except a decrease in reading time. Diagnostic accuracy and sensitivity were significantly affected by the reader training level and prior overall experience with appendiceal CT but not by the prior specific experience with low-dose appendiceal CT. CONCLUSION: The learning curve is likely prolonged and forms gradually over years by overall radiology training and clinical experience in general rather than by experience with low-dose appendiceal CT specifically.
OBJECTIVE: The objective of our study was to prospectively evaluate the initial diagnostic performance and learning curve of a community of radiologists and residents in interpreting 2-mSv appendiceal CT. SUBJECTS AND METHODS: We included 46 attending radiologists and 153 radiology residents from 22 hospitals who completed an online training course of 30 2-mSv CT cases. Appendicitis was confirmed in 14 cases. Most of the readers had limited (≤ 10 cases, n = 32) or no (n = 118) prior experience with low-dose appendiceal CT. The order of cases was randomized for each reader. A multireader multicase ROC analysis was performed. Generalized estimating equations were used to model the learning curves in diagnostic performance. RESULTS: Diagnostic performance gradually improved with years of training. The average AUC was 0.94 (95% CI, 0.90-0.98), 0.92 (0.88-0.96), 0.90 (0.85-0.96), and 0.86 (0.80-0.92) for the attending radiologists, senior residents, 2nd-year residents, and 1st-year residents, respectively. We did not observe any notable intrareader learning curves over the training course of the 30 cases except a decrease in reading time. Diagnostic accuracy and sensitivity were significantly affected by the reader training level and prior overall experience with appendiceal CT but not by the prior specific experience with low-dose appendiceal CT. CONCLUSION: The learning curve is likely prolonged and forms gradually over years by overall radiology training and clinical experience in general rather than by experience with low-dose appendiceal CT specifically.
Authors: Ji Hoon Park; Jong-June Jeon; Sung Soo Lee; Amar C Dhanantwari; Ji Ye Sim; Hae Young Kim; Kyoung Ho Lee Journal: Eur Radiol Date: 2017-12-07 Impact factor: 5.315
Authors: Jungheum Cho; Youngjune Kim; Seungjae Lee; Hooney Daniel Min; Yousun Ko; Choong Guen Chee; Hae Young Kim; Ji Hoon Park; Kyoung Ho Lee Journal: Korean J Radiol Date: 2022-01-27 Impact factor: 3.500