The feasibility of endoscopy-CT image registration in the head and neck without prospective endoscope tracking.

ABSTRACT: PURPOSE:Endoscopic examinations are frequently-used procedures for patients with head and neck cancer undergoing radiotherapy, but radiation treatment plans are created on computed tomography (CT) scans. Image registration between endoscopic video and CT could be used to improve treatment planning and analysis of radiation-related normal tissue toxicity. The purpose of this study was to explore the feasibility of endoscopy-CT image registration without prospective physical tracking of the endoscope during the examination. METHODS:A novel registration technique called Location Search was developed. This technique uses physical constraints on the endoscope's view direction to search for the virtual endoscope coordinates that maximize the similarity between the endoscopic video frame and the

SUBMITTER: Ingram WS 

PROVIDER: S-EPMC5436843 | biostudies-literature | 2017

REPOSITORIES: biostudies-literature