Fig. 3

2D perfusion angiography evaluation in a patient with truncal SMA stenosis and ostial celiac trunk occlusion. Digital subtraction angiogram, color-coded 2D perfusion image and time versus contrast-concentration graph pre-interventionally (A) and following endovascular therapy with stenting (B). Post-interventionally, vessel diameters in the visceral territory increased substantially and the retrograde collateral flow to the celiac territory markedly improved. Accordingly, color-coded hemodynamics changed to a slightly warmer tone and flow parameters inferred a higher contrast concentration distal to the treated stenosis from an increase of AUC- and PD-ratio. On the contrary, the measurements failed to show the expected decrease in TTP-ratio