Real-time respiratory motion compensated roadmaps for hepatic arterial interventions.

ABSTRACT:

Purpose

During hepatic arterial interventions, catheter or guidewire position is determined by referencing or overlaying a previously acquired static vessel roadmap. Respiratory motion leads to significant discrepancies between the true position and configuration of the hepatic arteries and the roadmap, which makes navigation and accurate catheter placement more challenging and time consuming. The purpose of this work was to develop a dynamic respiratory motion compensated device guidance system and evaluate the accuracy and real-time performance in an in vivo porcine liver model.

Methods

The proposed device navigation system estimates a respiratory motion model for the hepatic vasculature from prenavigational X-ray image sequences acquired under free-breathing conditions wi

SUBMITTER: Wagner MG 

PROVIDER: S-EPMC8568648 | biostudies-literature | 2021 Oct

REPOSITORIES: biostudies-literature