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. 2021 Feb 24;12:1259. doi: 10.1038/s41467-021-21466-z

Fig. 4. The user interface for each step of the smartphone app.

Fig. 4

Firstly, the users open the app and take a photo of gallbladder from the screen of a sonographic machine. The photo should include the maximum longitudinal section of gallbladder image obtained by high frequent probe and exclude structures other than gallbladder as much as possible. The users then press “Ok” to send the photo to a cloud platform. The outcome of BA or non-BA will show on the smartphone screen in a few seconds. BA biliary atresia.