Title :
Applying the CenterSurface model to 3-D reconstructions of the left ventricle for regional function analysis
Author :
Bolson, EL ; Sheehan, Fh ; Legget, ME ; Jin, H. ; McDonald, Ja ; Sampson, PD ; Martin, R.W. ; Bashein, G. ; Otto, C.M.
Author_Institution :
Washington Univ., Seattle, WA, USA
Abstract :
Reconstruction of heart chambers from tomographic images has traditionally been done from either parallel or fixed position rotational scans. We introduce a method of reconstruction from random slice orientations, using labeled landmark features to guide fitting to a labeled predesigned surface-generating mesh. This method is applied specifically to ultrasound sector scanning, but is applicable to any tomographic imaging technique. Given surface descriptions of the left ventricle (LV) endocardium and epicardium at end diastole (ED) and end systole (ES) (or other time points), LV wall motion can be computed by matching the ED and ES surface features. Wall thickness at ED and ES is computed using the CenterSurface method. A new method of computing the CenterSurface is described
Keywords :
echocardiography; image reconstruction; medical image processing; 3-D reconstructions; CenterSurface model; LV wall motion; center surface model; end systole; epicardium at end diastole; heart chambers; labeled landmark feature; labeled predesigned surface-generating mesh; left ventricle; left ventricle endocardium; random slice orientations; regional function analysis; time points; tomographic images; tomographic imaging technique; transesophageal echocardiographic probe; ultrasound sector scanning; wall thickness; Computer displays; Geometry; Heart; Image reconstruction; Probes; Surface fitting; Surface reconstruction; Tomography; Ultrasonic imaging; Visualization;
Conference_Titel :
Computers in Cardiology 1995
Conference_Location :
Vienna
Print_ISBN :
0-7803-3053-6
DOI :
10.1109/CIC.1995.482572
