Fig. 4From: Dual energy window imaging for optimisation of P/V ratios in VP SPECTResults of applying the prediction tool to ventilation studies in the validation dataset using a dose-sparing strategy (targeting a [99mTc]Tc-MAA dose of 120 MBq, and a P/V ratio of 3). In the stimulation, values predicted by the tool were compared to equivalent values calculated directly from actual perfusion dataBack to article page