- Scanning technology resources for healthcare professionals. A practical approach


Wide detector technology in cardiac imaging:
A more comprehensive cardiac evaluation

Dear readers,

In cardiac imaging, 64-slice multidetector computed tomography (MDCT), although widely adopted, has serious limitations due to step artefacts and high radiation exposure. The introduction of wide-detector technology for cardiac imaging provides technological improvements together with possibly greater diagnostic accuracy of CT coronary angiography. Current advantages and limitations of wide-detector MDCT scanners are described in Dr. Paul’s Focus on and in the selected literature and e-book, all presented in this month’s newsletter. In addition, as usual, two new clinical cases guide you to the best practical approaches.

We remind you that any suggestion for new topics to be covered in future issues is welcomed: please contact us at

From the team





McKavanagh P, Walls G, McCune C et al. The essentials of cardiac computerized tomography. Cardiol Ther. 2015 Dec;4(2):117-29

Belgrano M, Bregant P, Djoguela MF et al. 256-slice CT coronary angiography: in vivo dosimetry and technique optimization. Radiol Med. 2014 Apr;119(4):249-56

Chen MY, Steigner ML, Leung SW et al. Simulated 50 % radiation dose reduction in coronary CT angiography using adaptive iterative dose reduction in three-dimensions (AIDR3D).  Int J Cardiovasc Imaging. 2013 Jun;29(5):1167-75.

Muenzel D, Noel PB, Dorn F et al. Step and shoot coronary CT angiography using 256-slice CT: effect of heart rate and heart rate variability on image quality. Eur Radiol. 2011 Nov;21(11):2277-84