Follow-up after surgical treatment for aortic endocarditis
Use of Cardiac CT for anatomical assessment after surgery
Courtesy of Dr. V. Marteau
Vascular and Interventional Radiology
Dr. Zins Radiological Imaging Center
Paris Saint Joseph Hospital Group
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Who we are |
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The Paris Saint Joseph Hospital cardiovascular department includes cardiac surgery, vascular surgery, vascular medicine, cardiology, and a neuro-vascular unit. The imaging department is equipped with a 16-slice LightSpeed scanner and a 64-slice LightSpeed VCT XT scanner. |
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Patient History |
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A 65-year-old man underwent an aortic valve replacement due to the onset of endocarditis upon a previously implanted mechanical valve. The mechanical valve was replaced by a bio-prosthesis. A shunt between the left ventricle and the right atrium was closed. |
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Technique |
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This cardiac CT exam was performed on a LightSpeed VCT XT (GE Healthcare) using cardiac mode with prospective ECG-gating of the complete thoracic aorta and the heart. The heart rate was 56 BPM and the resulting dose in DLP was 720 mGy.cm. |
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Findings |
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An aneurysm of the ascending aorta is detected, as well as a stenosis of the re-implanted right coronary artery (RCA) and a pseudoaneurysm communicating with the outflow tract of the left ventricle (sterile abscess). |
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Figure 1 - Volume rendered image of left ventricle, aorta and coronary arteries. Dilatation of the ascending aorta. Pseudoaneurysm linked to the outflow tract of the left ventricle (arrow).
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Figure 2 - Volume rendered images of the outflow tract and the aortic root (light brown element). The pseudoaneurysm is highlighted in white along with 4 filling orifices. Note stenosis at the origin of the RCA.
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| Figure 3 - A) 2D curved view of the RCA B) Orthogonal view of the aortic prosthesis. Stenosis at the origin of the re-implanted RCA while left main coronary artery orifice is large. |
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Who we are |
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Patient History |
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Technique |
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Findings |
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