A block matching based approach with multiple simultaneous templates for the real-time 2D ultrasound tracking of liver vessels.

ABSTRACT:

Purpose

The implementation of motion management techniques in radiation therapy can aid in mitigating uncertainties and reducing margins. For motion management to be effective, it is necessary to track key structures both accurately and at a real-time speed. Therefore, the focus of this work was to develop a 2D algorithm for the real-time tracking of ultrasound features to aid in radiation therapy motion management.

Materials and methods

The developed algorithm utilized a similarity measure-based block matching algorithm incorporating training methods and multiple simultaneous templates. The algorithm is broken down into three primary components, all of which use normalized cross-correlation (NCC) as a similarity metric. First, a global feature shift to account for gross dis

SUBMITTER: Shepard AJ 

PROVIDER: S-EPMC5688953 | biostudies-literature | 2017 Nov

REPOSITORIES: biostudies-literature