Doyley, M.M.

strain plaque intravascular ultrasound pressure imaging frame catheter tissue strain values rf echo frames palpogram motion strain estimates value system region elastography patient artery image technique korte cl catheter motion study korte estimate cespede approach cycle ultrason calci heart elastogram tissue strain pressure di fferential elasticity noise cespedes ei steen material pressure difference method kernel elastographic snr procedure result echogram ophir j circulation decorrelation noise vessel atherosclerotic intravascular ultrasound signal multiframe difference position estimation ophir processing palpation resolution decorrelation intravascular ultrasound elastography vessel wall palpation q m quality intravascular elastography calci fied material multiframe strain-estimation approach elastographic lumen interframe lesion balloon scanner acquisition cross-section compensation