The following question has been sent by Akhilesh Singh: CT coronary angio – what is the normal range of calcium score? Ralf Bauer,  MD, Clinic of the Goethe University, Frankfurt, Germany: Dear Mr. Singh, thank you for your question! But actually, it is not easy to answer. First, there is no real “normal” range. … Read more

Does iterative reconstruction in general and IRIS specifically decreased blooming artifact from calcific plaque in coronary cta and to what extent. Is there a difference between the benefits derived from IRIS between its use with the Definition scanner versus the Flash? Read more

Virtual non-contrast images can be generated using “Liver VNC” from Dual Energy software (syngo, Siemens). The default settings of the Liver VNC can be modified to customize dual-energy image post-processing. Read more

The advantge of DSCT in cardiac imaging is the good temporal resolution. The temporal resolution of the Definition is 83 ms and in the Flash it is even 75 ms, providing good image quality at high heart rates (see paper). Read more

Two interesting questions about CT in pediatrics have been asked on DSCT.com some time ago. As Dr. Hyun Woo Goo, who is an expert in pediatrics, recently joined the DSCT expert community, DSCT.com asked him to comment on these questions as well. Read his answers here. The following questions … Read more

The following question has been sent by Daniel Newman: I am asked frequently about the difference between dual energy and dual source.  It seems that for most people the terms are interchangeble.  However, not all CT systems utilize 2 tubes.  Can you explain to me the pros and cons of each … Read more

The following question has been sent by Antonio Maestro: Use of Flash and DE to replace SPECT in detection of ischemia tests? Hi, i am doing a research to assess the clinical and patient workflow results of using a DSCT Definition Flash for the Chest Pain Unit patients. It seems clear to me … Read more