In Vitro Calculation of Flow by Use of Contrast Ultrasonography Breadcrumb All SHP Publications Journal Articles Journal of the American Society of Echocardiography 6 In Vitro Calculation of Flow by Use of Contrast Ultrasonography Paul A. Heidenreich, JG Wiencek, VA Zaroff, S Aronson, LJ Segil, PV Harper, SB Feinstein December 31, 1993 All SHP Publications