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Figure 4 | Journal of Cardiovascular Magnetic Resonance

Figure 4

From: Remote control catheter navigation: options for guidance under MRI

Figure 4

Navigation of magnetic catheter under steady state free precession real-time imaging in an aortic bifurcation phantom with B 0 indicating the direction of the MR scanner bore. The upper left panel demonstrates minimal image artifact from the copper-coil tipped catheter (arrow) when no electric current is applied. When a small positive electric current is applied to the catheter tip (second upper panel), the catheter deflects to the left and then can be pushed into the left branch vessel (third upper panel) and then withdrawn to the simulated aorta (fourth upper panel). When a small negative current is applied to the catheter tip (lower panels), the catheter is deflected to the right and selects the right branch vessel.

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