Background Dual-source computed tomography (DSCT) was introduced with significant hardware and software changes compared with single-source CT (SSCT), resulting in improved temporal resolution (83 ms) and the potential for improved image quality. The effect of these changes on radiation dose requirements for coronary CT angiography in clinical practice has not been … Read more

A dual-source CT (DSCT)* is equipped with two x-ray tubes and two corresponding detectors that are oriented in the gantry with an angular offset of 90 degrees. As a result, it is possible to double the temporal resolution to 83 ms compared to that of single-source CT, double the speed … Read more

The special issue of the European Journal of Radiology (EJR)  is dedicated to dual-source CT. Different aspects of this relatively new technology will be discussed from a scientific point of view. Well known authors – many of them participating in the online expert community on DSCT.com – had contributed by … Read more

Naser Ahmadi, MD, USA, has sent the following question: Dual Source Dual Energy Recon Algorithm: I would like to know the reconstruction algorithm of dual energy dual source (Siemens-Definition). I know that peripendicular detectors of dual source empower Siemens CT scanner to capture/reconstruct images without (minimal) step artifact which is actually … Read more