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Insights into Imaging
Fig. 3 | Insights into Imaging

Fig. 3

From: Has “respiratory coaching” before deep inspiration an impact on the incidence of transient contrast interruption during pulmonary CT angiography?

Fig. 3

Transverse CT pulmonary angiogram at the level of the pulmonary trunk bifurcation (a) and 1 cm below (b) in a 59-year-old man. Pulmonary artery attenuation (arrows) is around 220 HU in a and shows higher density in b (around 300 HU), but the pulmonary artery is less enhanced than the aorta (arrowhead), pulmonary veins, and superior vena cava. Patient was considered as presenting a grade 3 transient interruption of contrast (TIC) by both observers

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