Relations between accuracy of vessel measurement and physical image quality characteristics in multi-detector CT scanner

Y. Azuma, T. Akagawa, H. Hamaguchi, S. Goto, T. Sumimoto

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The influence of image quality characteristics on the accuracy of vessel measurement was investigated using simple vascular models, the comparison of the profile curve of the cross section of the vascular models and physical image quality characteristics such as modulation transfer function (MTF), Wiener spectrum (WS) and contrast, with changing scan conditions. The profile curves in the section part that greatly influences the measurement accuracy of the vessel diameter has changed by x-ray tube voltage. The noise has increased evenly in all frequency band regions at the same time though the contrast rose in 2 and 4 mm vascular models. The change was not seen in MTF. It can be said that the decision of the scan parameters that raises the contrast and decreases the noise will improve the measurement accuracy of the vessel diameter.

Original languageEnglish
Title of host publicationIMTC'06 - Proceedings of the IEEE Instrumentation and Measurement Technology Conference
Pages438-442
Number of pages5
DOIs
Publication statusPublished - Dec 1 2006
EventIMTC'06 - IEEE Instrumentation and Measurement Technology Conference - Sorrento, Italy
Duration: Apr 24 2006Apr 27 2006

Publication series

NameConference Record - IEEE Instrumentation and Measurement Technology Conference
ISSN (Print)1091-5281

Other

OtherIMTC'06 - IEEE Instrumentation and Measurement Technology Conference
CountryItaly
CitySorrento
Period4/24/064/27/06

Keywords

  • Diameter of a vascular model
  • Image quality characteristics
  • Measurement accuracy of vessels
  • Multi-detector CT scanner
  • Profile curve

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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  • Cite this

    Azuma, Y., Akagawa, T., Hamaguchi, H., Goto, S., & Sumimoto, T. (2006). Relations between accuracy of vessel measurement and physical image quality characteristics in multi-detector CT scanner. In IMTC'06 - Proceedings of the IEEE Instrumentation and Measurement Technology Conference (pp. 438-442). [1700198] (Conference Record - IEEE Instrumentation and Measurement Technology Conference). https://doi.org/10.1109/IMTC.2006.237101