Current Cardiology Reports

, Volume 12, Issue 1, pp 68–75

CT Coronary Angiography: 256-Slice and 320-Detector Row Scanners

  • Edward M. Hsiao
  • Frank J. Rybicki
  • Michael Steigner
Article

DOI: 10.1007/s11886-009-0075-z

Cite this article as:
Hsiao, E.M., Rybicki, F.J. & Steigner, M. Curr Cardiol Rep (2010) 12: 68. doi:10.1007/s11886-009-0075-z

Abstract

Multidetector computed tomography (MDCT) has rapidly evolved from 4-detector row systems in 1998 to 256-slice and 320-detector row CT systems. With smaller detector element size and faster gantry rotation speed, spatial and temporal resolution of the 64-detector MDCT scanners have made coronary artery imaging a reliable clinical test. Wide-area coverage MDCT, such as the 256-slice and 320-detector row MDCT scanners, has enabled volumetric imaging of the entire heart free of stair-step artifacts at a single time point within one cardiac cycle. It is hoped that these improvements will be realized with greater diagnostic accuracy of CT coronary angiography. Such scanners hold promise in performing a rapid high quality “triple rule-out” test without high contrast load, improved myocardial perfusion imaging, and even four-dimensional CT subtraction angiography. These emerging technical advances and novel applications will continue to change the way we study coronary artery disease beyond detecting luminal stenosis.

Keywords

Computed tomography Coronary artery disease Wide area detector Imaging Technology 

Copyright information

© Springer Science+Business Media, LLC 2010

Authors and Affiliations

  • Edward M. Hsiao
    • 1
  • Frank J. Rybicki
    • 1
  • Michael Steigner
    • 1
  1. 1.Applied Imaging Science LaboratoryBrigham and Women’s Hospital Radiology & Harvard Medical SchoolBostonUSA

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