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CVIR Endovascular
Fig. 4 | CVIR Endovascular

Fig. 4

From: A technique for intra-procedural blood velocity quantitation using time-resolved 2D digital subtraction angiography

Fig. 4

The raw qDSA velocity calculations as a function of source to image distance (SID) are plotted as circles. As the SID increases the magnification factor increases causing the calculated velocity values to increase as a function of magnification. Applying the magnification correction, using a reference object, reduces variation in the calculated velocity over a range of SIDs

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