Table.

Comparison of Cardiac Activities in Study and Control Rats

	HSV1-sr39tk Rat (n=10)	Control Rat (n=4)	P
MicroPET image, ROI % ID/g	0.72±0.09	0.08±0.03	<0.001
Gamma counting, % ID/g	0.15±0.03	0.01±0.002	<0.05
TK assay, % conversion/µg per min	0.45±0.17	0.02±0.01	<0.05

Data are expressed as mean±SEM.

% ID/g indicates percent injected dose of [¹⁸F]-FHBG per gram of myocardium.