- Aortic Pathology
-Aneurysm
- Pseudoaneurysm
- Intramural hematoma
- Penetrating ulcer
- Dissection - Diseased Trileaflet Aortic Valve
-Calcific degeneration
-Myxomatous degeneration (collagen deficiency, mitral valve prolapse)
-Fibrosis due to neovascularization (rheumatic heart disease)
-Infection - Normal Aortic Valve
3 semilunar cusps
Diastole:
- valve closes
- coaption (central meeting)
Systole:
- leaflets retract to create
triangular opening (aortic valve area)
"The CT findings were not significantly different from the intraoperative findings (p=0.99), but the echocardiographic findings were (p<0.05)." Diagnostic Value of Cardiac CT in the Evaluation of Bicuspid Aortic Stenosis: Comparison with Echocardiography and Operative Findings
Tanaka R et al.
AJR 2010;195:895-899 "The sensitivity, specificity, positive predictive value, and negative predictive value for the detection of bicuspid aortic valve were 76.5%, 60.6%, 68.4%, and 95.2%, respectively for echocardiography and 94.1%, 100%, 100%, and 97.1% respectively for CT." Diagnostic Value of Cardiac CT in the Evaluation of Bicuspid Aortic Stenosis: Comparison with Echocardiography and Operative Findings
Tanaka R et al.
AJR 2010;195:895-899 " ECG-gated cardiac CT is useful for the accurate morphologic assessment of bicuspid aortic stenosis, especially in patients with severe aortic valve disease." Diagnostic Value of Cardiac CT in the Evaluation of Bicuspid Aortic Stenosis: Comparison with Echocardiography and Operative Findings
Tanaka R et al.
AJR 2010;195:895-899 - "Aortic valve planimetry is best performed at phase starts of 50-100 milliseconds after the R peak because the area of the aortic opening is widest and image quality is best at that phase."
Feasibility and Optimization of Aortic Valve Planimetry with MDCT
Abbar S et al.
AJR 2007; 188:356-360
- "We show in this study that MDCT can potentially be used to evaluate stenotic aortic valves, which often coexist with coronary artery disease. Additional studies need to be performed to further clarify the accuracy of the technique and its role in the clinicaldecision making process."
Feasibility and Optimization of Aortic Valve Planimetry with MDCT
Abbar S et al.
AJR 2007; 188:356-360
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