Comparative evaluation of volume and helical four-dimensional computed tomography using canon system.

ABSTRACT:

Background

Four-dimensional computed tomography (4DCT) is an advanced imaging technique designed to capture anatomical motion over time, enabling more accurate evaluation of tumor and organ motion owing to respiration, while minimizing motion-related artifacts. 4DCT employs two primary scanning modes-volume (cine) mode and helical mode-each with distinct clinical implications. A comprehensive evaluation of both approaches is therefore essential prior to clinical implementation.

Purpose

This study aimed to compare volume and helical 4DCT scan modes in terms of image quality, dimensional accuracy, and positional accuracy for respiratory-gated radiotherapy.

Methods

4DCT imaging was conducted using a Canon Aquilion ONE Prism CT scanner integrated with an Anzai respiratory

SUBMITTER: Kim C 

PROVIDER: S-EPMC12618175 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature