Prospective ECG-gated 320 row detector computed tomography: Implications for CT angiography and perfusion imaging

Kakuya Kitagawa, Albert C. Lardo, Joao A.C. Lima, Richard T. George

Research output: Contribution to journalArticlepeer-review

45 Scopus citations


Cardiac multidetector computed tomography has evolved from early four detector systems that first demonstrated the feasibility of non-invasive angiography to today's wide-area detector computed tomography systems, such as 320-row detector computed tomography. As detector arrays have widened, there have been great improvements in image quality that have improved test accuracy. In addition, wider detector arrays have allowed for the application of prospective ECG-gating for CT angiography, although the current 64-row detector systems have some limitations. 320-row detector computed tomography with full cardiac coverage allows for cardiac imaging in a single heart beat. This technology has realized some of the great advantages provided by full cardiac coverage in regards to image quality (elimination of step artifacts and variation in contrast enhancement), patient safety (reductions in overall radiation and contrast dose), and the prospects for combined CT angiography and myocardial perfusion imaging are very promising. We will review the technical aspects of 320-row detector computed tomography and their implications for coronary angiography and perfusion imaging.

Original languageEnglish (US)
Pages (from-to)201-208
Number of pages8
JournalInternational Journal of Cardiovascular Imaging
Issue numberSUPPL. 2
StatePublished - 2009


  • 320-Row detector computed tomography
  • Dynamic volume computed tomography
  • Myocardial perfusion
  • Non-invasive angiography
  • Prospective ECG-gating
  • Wide-area computed tomography

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Cardiology and Cardiovascular Medicine


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