To prospectively evaluate the effect of heart rate, heart rate variability, and calcification on dual-source computed tomography (CT) image quality and to prospectively assess diagnostic accuracy of dual-source CT for coronary artery stenosis, by using invasive coronary angiography as the reference standard. Read more

Marketing claims accompanying the launch of a new high-end imaging system are always to be taken with a grain of salt. In the case of coronary CT angiography with 2nd generation dual-source CT, however, the emerging literature and our own experiences using this system largely support the pre-launch projections. These … 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

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The following question has been sent by Bellalize Steenkamp, radiographer, Unitas Hospital, South Africa: 1) Would you say that the DSCT is better equipped to do Paediatrics than the normal multi-slice CT? 2) In certain cases, due to the less invasive procedure, would you say it is more appropriate than doing an … Read more

The following question has been sent by Bellalize Steenkamp, radiographer, Unitas Hospital, South Africa: Is there a place for DSCT in paediatric diagnoses? Hatem Alkadhi, M.D., University Hopsital Zurich, Switzerland: Dear Ms Steenkamp Thank you for your question regarding the use of DSCT in pediatric patients. The answer is: Yes. First, you may perform any DSCT … Read more

The following question has been sent by Sofiane Hadjadj, MD, clinical research, Canada: hi, we have just aquired the dual source ct, and I am very impressed by the quality of images for coro ct even with high calccium scoring, my question is regarding the EKG editing, are their any rules … Read more