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When, why, and how to examine the heart during thoracic CT: Part 1, basic principles.
John F Bruzzi1, Martine Rémy-Jardin, Damien Delhaye
1Department of Radiology, Hospital Calmette, Boulevard Pr. J. Leclerq, Lille 59037, France.
AJR. American Journal of Roentgenology
|January 21, 2006
Summary
Fast MDCT scans reduce cardiac motion artifacts in chest CTs, improving heart evaluation. This technique enhances diagnosis of cardiac disorders and informs clinical management.
Area of Science:
- Radiology
- Cardiovascular Imaging
Background:
- Multidetector CT (MDCT) systems offer fast scanning, reducing motion artifacts in thoracic imaging.
- Routine chest CTs can be enhanced to include cardiac structure evaluation.
Purpose of the Study:
- To describe the principles of incorporating cardiac evaluation into chest CT examinations.
- To outline examination techniques and image interpretation for cardiac structures during thoracic CT.
- To present normal and common abnormal appearances of cardiac structures on CT.
Main Methods:
- Utilizing MDCT systems with fast scanning capabilities.
- Implementing cardiac gating for dedicated cardiac analysis when necessary.
- Reviewing both unenhanced and contrast-enhanced CT scans.
Main Results:
- Fast scanning significantly reduces cardiac motion artifacts in thoracic CT.
- Cardiac evaluation during chest CT can reveal significant cardiac disorders.
- Cardiac gating provides detailed morphologic and functional information of the heart and coronary arteries.
Conclusions:
- Integrating cardiac assessment into routine thoracic CT improves diagnostic capabilities.
- Unenhanced and contrast-enhanced CT scans can detect critical cardiac pathology.
- Dedicated cardiac CT with gating offers comprehensive cardiovascular assessment.