3D Quantitative measurement of left ventricle (LV) motion on patients with acute myocardial infarction has been recognized as essential for effective LV function diagnosis. This paper presents a method to quantify 3D LV motion obtained from conventional CINE MRI using image analysis based on mathematical modeling. Level set method is employed for segmentation, and a 3D LV geometry was reconstructed by co-registering different views of MRI images. A mathematical model of LV geometry was then constructed to quantitatively describe the LV wall inward motion. The results using real data show that the method is able to quantify the LV inward motion, and can clearly represent the changed motion pattern with the follow-up data. Furthermore, the LV motion analysis for 8 patients with acute myocardial infarction (MI) show that high inward motion occurs mainly in the basal region of LV while a negative relation is found between LV eject fraction improvement after acute MI and solely basal region inward motion, which could be helpful for diagnosis and LV EF recovery prediction.
|Title of host publication||Proceedings from the 33rd Annual International IEEE Engineering in Medicine and Biology Society Conference 2011|
|Place of Publication||Boston, USA|
|Publication status||Published - 2011|
- cardiac modeling
- ventricular mechanics
- cardiac MRI