FIGURE 4. Ultrasonic coronary blood flow and t_1/2 of ^99mTcN-NOET intrinsic myocardial washout from canine myocardium before (control) and after intravenous administration of intralipids (hyperlipidemia). t_1/2 values were determined by applying exponential fit (y = a₀ x exp[-x/a₁]) to individual ^99mTcN-NOET intrinsic myocardial washout curves. Data are mean ± SEM of 3 experiments. *P < 0.05 vs. preintralipids administration.