An RF-Over-Fiber System for Reliable Signal Injection in ERETIC Spectroscopy

Pavan, M; Heinzer-Schweizer, S; De Zanche, N; Henning, A; Boesiger, p; Pruessmann, KP

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An RF-Over-Fiber System for Reliable Signal Injection in ERETIC Spectroscopy

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https://cds.ismrm.org/protected/09MProceedings/files/1_program.htm
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Pavan, M., Heinzer-Schweizer, S., De Zanche, N., Henning, A., Boesiger, p., & Pruessmann, K. (2009). An RF-Over-Fiber System for Reliable Signal Injection in ERETIC Spectroscopy. Poster presented at 17th Annual Meeting of the International Society for Magnetic Resonance in Medicine (ISMRM 2009), Honolulu, HI, USA.

引用: https://hdl.handle.net/21.11116/0000-0003-1564-5

要旨

We present an optical link used to transmit a reference signal in spectroscopy (ERETIC method). The optical link has the peculiarity to be safety and inexpensive since it is made of only a low noise preamplifier, a high speed LED, polymer optical fiber and a photodiode. The reference signal is generated outside the MR room, it travels along the optical fiber, enters the scanner room’s Faraday shield through a waveguide and is injected into a birdcage coil by inductive coupling. The link is shown to be reliable and stable over time consenting so, good fidelity quantitative measurements of metabolite concentrations.