Ces radiol. 2009, 63(1):20-27

Technical aspects of dynamic perfusion computed tomography of the myocardiumTechnical Innovation

Jiří Ferda1, Jan Baxa1, Bernhard Schmidt2, Thomas Allmendinger2, Ernst Klotz2, Thomas Flohr2, Richard Rokyta3, Boris Kreuzberg1
1 Radiodiagnostická klinika LF UK a FN, Plzeň
2 Siemens Medical Solutions, CT division, Department of Research and Development, Forchheim, Deutschland
3 I. interní klinika LF UK a FN, Plzeň

Aim: To evaluate technical possibilities of scanning and raw-data reconstruction usable for dynamic cardiac myocardial perfusion using computed tomography.


Material and method. The serial dynamic myocardial imaging using prospective ECG triggering was performed in 14 patients with heart rate below 75/min. The diastolic phase was used in 10 patients, systolic in 5 respectively. Examinations were done after intravenous application of iomeprol with concentration of 400 mgI/ml. 50 ml with flow rate 5 ml/s were used in 10 patient, 30 ml with flow rate 5 ml/s in the rest of 5 patients. Data were reconstructed using experimental software to obtain data for perfusion analysis. Both acquisition protocols were used.

Results: Due to the decreased number of artifacts, the systolic phase showed to be the optimal for dynamic perfusion CT data acquisition. The volume od 30 ml of contrast agent with flow rate 5 ml/s found be sufficient to perform perfusion analysis.

Conclusion: Our own experience proved the possibility of perfusion imaging of the myocardium using serial dynamic CT data acquisition when the systolic phase is used after contrast agent bolus injection.

Keywords: myocardial perfusion, computed tomography, dynamic serial scanning
Grants and funding:

Podpořeno výzkumným záměrem MSM 0021620819.

Accepted: February 15, 2009; Published: March 1, 2009  Show citation

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Ferda J, Baxa J, Schmidt B, Allmendinger T, Klotz E, Flohr T, et al.. Technical aspects of dynamic perfusion computed tomography of the myocardium. Ces radiol. 2009;63(1):20-27.
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