Comparison of echocardiography using tissue harmonics and contrast harmonics with radionuclide angiography for the assessment of left ventricular function.
Almeda FQ, Hendel RC, Macioch JE, Sandelski J, Parrillo JE, Meyer PM, Johnson M, Daniels ML, Go VU, Feinstein SB. Comparison of echocardiography using tissue harmonics and contrast harmonics with radionuclide angiography for the assessment of left ventricular function. J Investig Med. 2003 Nov; 51(6):366-72.