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논문 기본 정보

자료유형
학술저널
저자정보
Cho Yongwon (Department of Radiology Korea University Anam Hospital SeoulKorea.AI Center Korea University Anam H) Cho Hyungjoon (Department of Radiology Korea University Anam Hospital SeoulKorea.) Shim Jaemin (Division of Cardiology Department of Internal Medicine Korea University Anam Hospital SeoulKorea.) Choi Jong-Il (Division of Cardiology Department of Internal Medicine Korea University Anam Hospital SeoulKorea.) Kim Young-Hoon (Division of Cardiology Department of Internal Medicine Korea University Anam Hospital SeoulKorea.) Kim Namkug (Department of Convergence Medicine Asan Medical Center University of Ulsan College of Medicine Seou) Oh Yu-Whan (Department of Radiology Korea University Anam Hospital SeoulKorea.) Hwang Sung Ho (Department of Radiology Korea University Anam Hospital SeoulKorea.)
저널정보
대한의학회 Journal of Korean Medical Science Journal of Korean Medical Science Vol.37 No.36
발행연도
2022.9
수록면
1 - 12 (12page)
DOI
10.3346/jkms.2022.37.e271

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초록· 키워드

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Background: To propose fully automatic segmentation of left atrium using active learning with limited dataset in late gadolinium enhancement in cardiac magnetic resonance imaging (LGE-CMRI). Methods: An active learning framework was developed to segment the left atrium in cardiac LGE-CMRI. Patients (n = 98) with atrial fibrillation from the Korea University Anam Hospital were enrolled. First, 20 cases were delineated for ground truths by two experts and used for training a draft model. Second, the 20 cases from the first step and 50 new cases, corrected in a human-in-the-loop manner after predicting using the draft model, were used to train the next model; all 98 cases (70 cases from the second step and 28 new cases) were trained. An additional 20 LGE-CMRI were evaluated in each step. Results: The Dice coefficients for the three steps were 0.85 ± 0.06, 0.89 ± 0.02, and 0.90 ± 0.02, respectively. The biases (95% confidence interval) in the Bland-Altman plots of each step were 6.36% (?14.90?27.61), 6.21% (?9.62?22.03), and 2.68% (?8.57?13.93). Deep active learning-based annotation times were 218 ± 31 seconds, 36.70 ± 18 seconds, and 36.56 ± 15 seconds, respectively. Conclusion: Deep active learning reduced annotation time and enabled efficient training on limited LGE-CMRI.

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