TABLE 3.

Radiotracer Activity for Stress Image Acquisition

Image protocol	Injected activity (MBq)
Same-day protocols, n = 1,073 (92.5%)
Stress-first protocol, n = 261 (24.3%)	213.1 ± 87.3
Rest-first protocol, n = 812 (75.7%)	103 ± 384
Two-day protocol, n = 39 (3.4%)	682.3 ± 481.44
Stress-only protocol, n = 48 (4.1%)	260.2 ± 486.5
Overall, n = 1,160	804 ± 494

Data are mean ± SD.