Figure 2
From: Contrast timing optimization of a two-volume dynamic CT pulmonary perfusion technique
Prospective imaging protocol and the corresponding arterial input functions. Top, imaging protocol. \({\mathbf{T}}_{\mathbf{i}\mathbf{n}\mathbf{j}}\) is the contrast injection duration, \(\mathbf{T}\mathbf{D}\) is the scanner-specific transition delay (2 s), and \({\mathbf{T}}_{\mathbf{P}}\) is the pre-defined time-to-peak delay. Bottom, right ventricle (RV) and pulmonary artery (PA) arterial input functions (AIF). \({\mathbf{t}}_{\mathbf{V}1}\) and \({\mathbf{t}}_{\mathbf{V}2}\) are the acquisition time of the first volume scan (V1) and the second volume scan (V2). The baseline volumes used to emulate the bolus-tracking are shown in blue circles.
