 Cardiac images at rest were obtained in the parasternal long and short axis, apical four and apical two views followed by starting with a dobutamine drip in the usual fashion at 10 mcg/kg per minute for low dose, increased every 2 to 3 minutes by 10 mcg/kg per minute. 
Cardiac images at rest were obtained in the parasternal long and short axis , apical four and apical two views followed by starting with a dobutamine drip in the usual fashion at 10 mcg / kg per minute for low dose , increased every 2 to 3 minutes by 10 mcg / kg per minute .