Cardiac Multidetector Computed Tomography: Basic Physics of Image Acquisition and Clinical Applications

Dianna   M.E.   Bardo; Paul      Brown

Abstract

Cardiac MDCT is here to stay. And, it is more than just imaging coronary arteries. Understanding the differences in and the benefits of one CT scanner from another will help you to optimize the capabilities of the scanner, but requires a basic understanding of the MDCT imaging physics. This review provides key information needed to understand the differences in the types of MDCT scanners, from 64 – 320 detectors, flat panels, single and dual source configurations, step and shoot prospective and retrospective gating, and how each factor influences radiation dose, spatial and temporal resolution, and image noise.

Keywords: Cardiac CT, coronary artery MDCT, multidetector CT, dual source CT