Liu Y, et al. - Researchers conducted this retrospective analysis among infants with Pierre Robin syndrome (PRS) in order to evaluate the difficulty of tracheal intubation in this patient sample by including computed tomography (CT) to guide airway management for anesthesia. For 96 infants with PRS, case-level clinical data and CT images were studied. After labeling of CT images by a clinically experienced physician, the color space conversion, binarization, contour acquisition, and area calculation processing were done on the annotated files. Finally, the correlation coefficient between the 7 clinical factors (gender, height, weight, body surface area, throat area, age, and pneumonia) and tracheal intubation difficulty, as well as the variations in each risk factor under tracheal intubation difficulty were computed. According to the findings, a significant correlation exists between throat area and tracheal intubation difficulty among infants with PRS. A likely influence of body surface area, weight and gender on tracheal intubation difficulty in infants with PRS was suggested.