3240
Perfusion evaluation in small animal with 2D tiny golden angle UTE
Anke Balasch1, Hao Li2, Patrick Metze1, Alireza Abaei2, and Volker Rasche1
1Department of Internal Medicine II, Ulm University Medical Center, Ulm, Germany, Ulm, Germany, 2Core Facility Small Animal Imaging (CF-SANI), Ulm University, Ulm, Germany, Ulm, Germany
The study showed the feasibility of the combination of the tyGA technique with the single bolus Gd injection to qualitative assess lung perfusion. 
Figure 1: (a) Location of the different ROIs in the heart (red), lung (green), muscle (yellow) and background (orange) superimposed onto a pre CA image. In (b) the percentage change of signal intensity is shown.
Figure 2: Signal intensity changes during contrast agent injection. The time-frames in the graphs were reconstructed with different sliding window width ((a) 1000 projections, (b) 500 projections, (c) 250 projections and (d) 100 projections, tW = 2.4s, 6s, 12s, 24s). The sliding window step was chosen as 25 projections (𝛥t = 600ms).