A new method to evaluate fluoroscopic system collimator performance.

ABSTRACT:

Introduction

Fluoroscopy uses collimators to limit the radiation field size. Collimators are often evaluated annually during equipment performance evaluations to maintain compliance with regulatory and/or accreditation bodies. A method to evaluate and quantify fluoroscopy collimator performance was developed.

Methods

A radiation field and displayed image measurement device consisting of radiopaque rulers and radiochromic film strips was placed on the x-ray source assembly exit window to evaluate fluoroscopy collimator performance. This method was used to evaluate collimator performance on 79 fluoroscopic imaging systems including fixed C-arms, mobile C-arms, mini C-arms, and radiographic fluoroscopic systems.

Results

The excess length (EL), excess width (EW), and sum

SUBMITTER: Steiner JR 

PROVIDER: S-EPMC11633780 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature