Case: Adult CAD Rule out Flash
Case history
68 year old patient with atypical chest pain complaints and know year-long arterial hypertension. Ultrasound showed concentric LV hypertrophy and aortic valve stenosis grade 1. Rule out coronary artery disease. Resting heart rate was 50 bpm and no betablockers were injected.
Diagnosis / Differential diagnosis
Coronary CT angiography using the FLASH spiral was performed. There was no sign of macroangiopathic arteriosclerotic changes in the main coronary arteries and their major branches. Coronary artery disease could be ruled out in this patient.
Description
Coronary CT angiography using 100 kV tube potential and the FLASH spiral aquisition mode allowed to rule out coronary artery disease in this normal sized adult patient with a DLP of 49 in only 0.43 seconds scan time wihtout betablocker use. Also smallest myocardial branches of the RCA and LAD could be visualized underlining best image quality.
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Protocol
| Tube voltage 1 (kV) | 100 |
| Tube current 1 (mAs) | 370 |
| DLP | 49 |
| CTDI | 2, 53 |
| Contrast Media | 70 |
| Flow rate | 5 |
| mSv | 0,686 |
| Siemens Scanner | SOMATOM Definition Flash |
Coauthors: J. Matthias Kerl, Thomas J. Vogl
This case has been submitted to the Siemens Image Quality Contest 2010.
