Reorientation methodology for reproducible head posture in serial cone beam computed tomography images.

ABSTRACT: Low dose and accessibility have increased the application of cone beam computed tomography (CBCT). Often serial images are captured for patients to diagnose and plan treatment in the craniofacial region. However, CBCT images are highly variable and lack harmonious reproduction, especially in the head's orientation. Though user-defined orientation methods have been suggested, the reproducibility remains controversial. Here, we propose a landmark-free reorientation methodology based on principal component analysis (PCA) for harmonious orientation of serially captured CBCTs. We analyzed three serial CBCT scans collected for 29 individuals who underwent orthognathic surgery. We first defined a region of interest with the proposed protocol by combining 2D rendering and 3D convex hull method, an

SUBMITTER: Mangal U 

PROVIDER: S-EPMC9958024 | biostudies-literature | 2023 Feb

REPOSITORIES: biostudies-literature