[The effect of acoustic cavitation on the contraction force and membrane potential of rat papillary muscles].
Acoustic cavitation induced by continuous focused ultrasound (1.4 W/cm2, 543 Hz) was found to result in reversible membrane depolarization (by 54 mV), loss of excitability and contracture in the rat papillary muscles. The same intensities of impulse ultrasound had positive inotropic effects.
Zakharov
S I
SI
Bogdanov
K Iu
KIu
Rozenshtraukh
L V
LV
Gavrilov
L R
LR
Iushin
V P
VP
D000818:Animals; D066298:In Vitro Techniques; D008564:Membrane Potentials; D009200:Myocardial Contraction; D010210:Papillary Muscles / Q000502:physiology*; D010812:Physical Stimulation; D051381:Rats; D014465:Ultrasonics
Deĭstvie akusticheskoĭ kavitatsii na silu sokrashcheniia i membrannyĭ potentsial papilliarnoĭ myshtsy krysy.