PURPOSE: Multi-row-detector-spiral-CT (MSCT) allows for 250 ms effective exposure time. The purpose of this study was to demonstrate the possibilities and limitations of this CT technology for non enhanced and contrast enhanced investigation of the coronary arteries. METHODS: Investigation of the coronary arteries without contrast medium for quantification of coronary calcifications was performed in an obese patient (140 kg) with MSCT and electron beam CT (EBCT). In 56 patients contrast enhanced CT angiography of the coronary arteries was performed to determine image quality depending on the heart rate. RESULTS: In the obese patient superior image quality could be achieved with MSCT allowing for reliable quantification of coronary calcifications. With MSCT angiography of the coronary arteries good image quality was achieved in patients with a heart rate of 59 +/- 8 beats per minute. CONCLUSION: Even if there are limitations in patients with higher heart rates with an effective exposure time of 250 ms MSCT has clear advantage of image quality in the assessment of non enhanced and contrast enhanced coronary arteries.
PURPOSE: Multi-row-detector-spiral-CT (MSCT) allows for 250 ms effective exposure time. The purpose of this study was to demonstrate the possibilities and limitations of this CT technology for non enhanced and contrast enhanced investigation of the coronary arteries. METHODS: Investigation of the coronary arteries without contrast medium for quantification of coronary calcifications was performed in an obesepatient (140 kg) with MSCT and electron beam CT (EBCT). In 56 patients contrast enhanced CT angiography of the coronary arteries was performed to determine image quality depending on the heart rate. RESULTS: In the obesepatient superior image quality could be achieved with MSCT allowing for reliable quantification of coronary calcifications. With MSCT angiography of the coronary arteries good image quality was achieved in patients with a heart rate of 59 +/- 8 beats per minute. CONCLUSION: Even if there are limitations in patients with higher heart rates with an effective exposure time of 250 ms MSCT has clear advantage of image quality in the assessment of non enhanced and contrast enhanced coronary arteries.
Authors: Konstantin Nikolaou; Sonja Sagmeister; Andreas Knez; Ernst Klotz; Bernd J Wintersperger; Christoph R Becker; Maximilian F Reiser Journal: Eur Radiol Date: 2003-08-20 Impact factor: 5.315
Authors: Thorsten R C Johnson; Konstantin Nikolaou; Bernd J Wintersperger; Alexander W Leber; Franz von Ziegler; Carsten Rist; Sonja Buhmann; Andreas Knez; Maximilian F Reiser; Christoph R Becker Journal: Eur Radiol Date: 2006-05-13 Impact factor: 5.315
Authors: May Lin Oei; Murat Ozgun; Harald Seifarth; Alexander Bunck; Roman Fischbach; Stefan Orwat; Walter Heindel; Rene Botnar; David Maintz Journal: Eur Radiol Date: 2010-07-31 Impact factor: 5.315
Authors: Christopher Herzog; Martina Britten; Joern O Balzer; M G Mack; Stefan Zangos; Hanns Ackermann; Volker Schaechinger; Stefan Schaller; Thomas Flohr; Thomas J Vogl Journal: Eur Radiol Date: 2003-12-20 Impact factor: 5.315