Between November 2009 and February 2010 users of SOMATOM Definition, SOMATOM AS and SOMATOM Flash submitted over 270 CT images to the international CT image contest. The contest aims on choosing the best CT images acquired at the lowest radiation dose. In February, the jury starts to evaluate the images. Aside … Read more

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

Up until February 2010 users of SOMATOM Definition, SOMATOM AS and SOMATOM Flash have the opportunity to submit their CT images to the international CT image contest. The contest aims on choosing the best CT images acquired at the lowest radiation dose. Read more

Editorial Journal of Cardiovascular Computed Tomography (2008) 2 The number of diagnostic cardiac imaging tests involving x-rays has increased in the past decades. For example, the volume of diagnostic catheter angiography procedures performed in the United States increased from 2.45 million in 1993 to 3.85 million in 2002. (1) Similarly, the … Read more

Objektive: To compare the image quality of mono- versus bisegment reconstruction algorithms for dual-source computed tomography coronary angiography (CTCA). Materials and methods: Eighty consecutive patients (27 women; average age, 60 +/- 12 years) were randomly assigned to 2 different CTCA scanning protocols: 40 patients (group A) underwent dual-source CTCA with a … Read more

Recommendations for ECG-Pulsing Windowing Abstract Purpose: To evaluate reconstruction intervals and image quality in dual-source computed tomography (DSCT) coronary angiography for optimal placement of the ECG-pulsing window. Materials and Methods: DSCT coronary angiography was performed in 60 patients. Thirteen datasets were reconstructed in 5% increments from 20–80%. Two readers independently assessed image quality … Read more

Abstract Objective. The purpose of this study was to evaluate the effect of mean heart rate and heart rate variability on the image quality of dual-source CT coronary angiography. Subjects and methods. Eighty patients underwent dual-source CT coronary angiography. Thirteen data sets were reconstructed in 5% steps from 20–80% of the R-R … Read more