In order to bring you the best possible user experience, this site uses Javascript. If you are seeing this message, it is likely that the Javascript option in your browser is disabled. For optimal viewing of this site, please ensure that Javascript is enabled for your browser.
Did you know that your browser is out of date? To get the best experience using our website we recommend that you upgrade to a newer version. Learn more.

CT in evaluation of MS patients

EACVI Valvular Imaging Box


 

Like 3DE, CT cardiac angiogram (CTCA) is a volumetric technique (0.3-0.5mm isotropic resolution) and thus allows precise alignment to the plane of mitral annulus or the valve. The scan has to be acquired to cover the required diastolic phase of the cardiac cycle (prospective ECG gating with a wide padding in diastolic phase or retrospective gating with ECG modulation).

Alignment of mitral annulus plane in two orthogonal planes on CCTA with planimetry of the annulus

CCTA images demonstrating alignment to the mitral valve orifice using the two orthogonal planes. This is a normal valve in late diastolic phase.

CCTA is very sensitive in detecting calcification anywhere in the body and hence shows it very well in the mitral annulus and valve.
CCTA short-axis image demonstrating calcification (bright density) along the inferior and posterior aspects of mitral annulus with extension into the adjacent valve

 

Cine CCTA in apical 4c view demonstrating restricted MV due to severe calcification in the annulus

CCTA (same patient) in short axis plane view demonstrating valve area measured in mid-diastolic phase

 

Long axis CCTA cine of a patient with rheumatic mitral valve disease

 

Short axis CCTA (cine) images of a patient with rheumatic mitral valve disease

 

Author: Tarun Mittal