Clinical performance evaluation of the landmark photo checker in upper gastrointestinal endoscopy

INTERVENTION: The participants were randomly assigned to two groups of equal size: the sensitivity verification group and the specificity verification group. In the sensitivity verification group, the endoscopists captured appropriate still images of the seven landmarks during the examination. Conversely, in the specificity verification group, the endoscopists intentionally captured inappropriate images of the seven landmarks. Sensitivity was defined as the proportion of images marked as "good" by LMPC in the sensitivity verification group, while specificity was defined as the proportion of images not marked as "good" by LMPC in the specificity verification group. CONDITION: Non‐disabled individuals PRIMARY OUTCOME: This study aimed to evaluate the sensitivity of LMPC for these seven landmarks as the primary endpoint. SECONDARY OUTCOME: The secondary evaluation criteria were defined as the specificity and diagnostic accuracy of LMPC. INCLUSION CRITERIA: