[Evaluation of the retrospective ECG-gated helical scan using half-second multi-slice CT: motion phantom study for volumetry]

Nihon Hoshasen Gijutsu Gakkai Zasshi. 2002 Jan;58(1):94-100. doi: 10.6009/jjrt.kj00003111356.
[Article in Japanese]

Abstract

ECG synchronized technique on multi-slice CT provide the thinner (less 2 mm slice thickness) and faster (0.5sec/rotation) scan than that of the single detector CT and can acquire the coverage of the entire heart volume within one breath-hold. However, temporal resolution of multi-slice CT is insufficient on practical range of heart rate. The purpose of this study was to evaluate the accuracy of volumetry on cardiac function measurement in retrospective ECG-gated helical scan. We discussed the influence of the degradation of image quality and limitation of the heart rate in cardiac function measurement (volumetry) using motion phantom.

Publication types

  • Evaluation Study

MeSH terms

  • Electrocardiography*
  • Heart / diagnostic imaging*
  • Heart / physiology
  • Heart Rate
  • Phantoms, Imaging*
  • Radiographic Image Enhancement
  • Sensitivity and Specificity
  • Tomography, Spiral Computed / instrumentation*
  • Tomography, Spiral Computed / methods