Abstract 

Purpose

To construct a standard dataset of contrast-enhanced CT images of liver tumors to test the performance and safety of artificial intelligence (AI)-based algorithms for clinical decision support systems (CDSSs).

Materials and Methods

A consensus group of medical experts in gastrointestinal radiology from four national tertiary institutions discussed the conditions to be included in a standard dataset. Seventy-five cases of hepatocellular carcinoma, 75 cases of metastasis, and 30–50 cases of benign lesions were retrieved from each institution, and the final dataset consisted of 300 cases of hepatocellular carcinoma, 300 cases of metastasis, and 183 cases of benign lesions. Only pathologically confirmed cases of hepatocellular carcinomas and metastases were enrolled. The medical experts retrieved the medical records of the patients and manually labeled the CT images. The CT images were saved as Digital Imaging and Communications in Medicine (DICOM) files.

Results

The medical experts in gastrointestinal radiology constructed the standard dataset of contrast-enhanced CT images for 783 cases of liver tumors. The performance and safety of the AI algorithm can be evaluated by calculating the sensitivity and specificity for detecting and characterizing the lesions.

Conclusion

The constructed standard dataset can be utilized for evaluating the machine-learningbased AI algorithm for CDSS.

Keywords

Liver Neoplasms; Aritificial Intelligence; Machine Learning; Deep Learning; Datasets as Topic

Journal: Journal of the Korean Society of Radiology

Author

Seung-seob Kim, Dong Ho Lee, Min Woo Lee, So Yeon Kim, Jaeseung Shin, Jin-Young Choi,  and Byoung Wook Choi

DOI: doi.org/10.3348/jksr.2020.0177