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FIG 1. Intraoperative MR imaging environment.
A, The patient is positioned in the magnet by using the side entry of the table. The neurosurgeon can stand behind the head of the patient by using an MR-compatible microscope (white arrow). The assisting nurse and the surgical instrumentation table are located behind the neurosurgeon. Black arrow indicates in-bore monitor.
B, The Flashpoint Position Encoder (open arrow) with the three light-emitting diodes (asterisks) in situ. The MR Track Pointer (long thin arrow) is mounted on the Flashpoint Position Encoder.
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