Flow acceleration time and ratio of acceleration time to ejection time for prosthetic aortic valve function. JACC Cardiovasc Imaging 23 November Nov 2011 14 years ago Ben Zekry S, Saad RM, Ozkan M, Al Shahid MS, Pepi M, Muratori M, Xu J, Little SH, Zoghbi WA. http://www.ncbi.nlm.nih.gov/pubmed/22093266
