Quad Head Coil and Quad Knee Coil SNR Consistently Low due to Low Signal.
Symptom
MRSPT SPT Quad Head Coil and Quad Knee Coil SNR Consistently Low With Low Signal. Body SNR OK SPT Head SNR Signal = 160.36, Noise = 13.16, SNR = 12.19, TG = 112. The problem is the signal, it's too low at 160. It should be more like 1350. We don't suspect low RF output, since the signal is peaking in prescan at TG = 112, which is about normal. We suspect something in the receive chain, since the Quad Knee and Quad Head coils use the same receive path. Body SNR is good. SPT Head SNR Signal = 160.36, Noise = 13.16, SNR = 12.19, TG = 112. The problem is the signal, it's too low at 160. It should be more like 1350. We don't suspect low RF output, since the signal is peaking in prescan at TG = 112, which is about normal. We suspect something in the receive chain, since the Quad Knee and Quad Head coils use the same receive path. Body SNR is good.
Applies to
- Models
- Excite, Signa
- Product
- Excite Includes Excite 1 and Excite 2, 10.0, 11.0 and 11.1 Software.
- Software
- 11.0 Only for 1.5T Excite product. 12.0 is Excite HD and 14.0 is Excite HDx. Note, 3T Excite goes with software G3, not 11.0 or 11.1.
- Component
- 46-328000G757 Head Receive Cable
- Area
- MR
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