Comparison of a 3D Scanning-Based Semiautomatic Measurement With the Direct Measurement for Auricle Anthropometry

OBJECTIVE: To compare the stability and accuracy of semiautomated measurements (SM) based on 3-dimensional scanning technology and Rhinoceros 8 software with direct measurements (DM) of auricular morphologic parameters and explore the clinical application value of the semiautomated measurement method. METHODS: A self-controlled study design was used. Two plastic surgeons independently performed 3 repeated measurements of 11 key auricular parameters on 20 healthy volunteers (40 ears) using both SM and DM. RESULTS: For intermethod reliability, SM yielded significantly higher intraclass correlation coefficient (ICC) values than DM for both physicians ( P 0.05). The SM demonstrated significantly lower coefficient of repeatability (CR) values across all 11 parameters ( P