Wen L. Hwang and Hong N. Yeung
We consider the processing of dynamic keyhole MRI using the wavelet-based approach. We propsosed two wavelet-based algorithms, together with careful analysis. The first algorithm embeds the conventional keyhole method as a special case in which corresponding wavelet is the Shannon wavelet while the other algorithm was proposed for the removals of the artifacts of the first method. We demonstrate that the artifacts of our method may decay faster than those of the conventional keyhole method. Our approach is fast and easy to implement. The results of several experiments are employed to access the comparative performance of both methods on a simulated phantom and clinical image.