Deep learning with convolutional neural networks for identification of liver masses and hepatocellular carcinoma: A systematic review

Table 1 PICOS framework to identify studies for inclusion

Population	Worldwide, datasets, patients, males and females, humans
Intervention	Use of CNN-diagnostic proposals and computer models
Comparison	Normal population, use of manual detection by radiologists, hepatologists, or anatomical pathologists examining images/slides.
Outcome	Lesion detection, classification, segmentation, or image reconstruction.
Studies	Controlled, or comparison to manual (routine) assessment, or comparison to benchmark or other artificial intelligence models.

CNN: Convolutional neural network; PICOS: Population, intervention, comparison, outcome, studies.