Comparison of human observer impression of X-ray fluoroscopy and angiography image quality with technical changes to image quality.

ABSTRACT:

Purpose

Spatio-temporal variability in clinical fluoroscopy and cine angiography images combined with nonlinear image processing prevents the application of traditional image quality measurements in the cardiac catheterization laboratory. We aimed to develop and validate methods to measure human observer impressions of the image quality.

Approach

Multi-frame images of the thorax of a euthanized pig were acquired to provide an anatomical background. The detector dose was varied from 6 to 200 nGy (increments 2×), and 0.6 and 1.0 mm focal spots were used. Two coronary stents with/without 0.5 mm separation and a synthetic right coronary artery (RCA) with hemispherical defects were embedded into the background images as test objects. The quantitative observer ( n=17 ) performance

SUBMITTER: Mihailovic JM 

PROVIDER: S-EPMC11316400 | biostudies-literature | 2024 Jul

REPOSITORIES: biostudies-literature