MRI: State of the Art. MR Attractions. MRI 的特點. 非侵入性 MRCP MR Myelography. 無輻射. 任意斷層切面. T2. 組織對比. 信號抑制. MR 血管攝影. No CM Necessary Replacing Diganostic Angio Vasculatures beyond Brain. 安全的造影劑. 最安全 健保給付. Tissue Contrast. TR. 2500 500. TE. 15. 90. T1,T2 & PD.
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90T1,T2 & PD
SE: 7 min TSE: 2 min EPI: 0,2 s
post Gd T1W SE
PCA - angio
From Pixel to Images
(coils, pre-amp, etc.)
„Stronger and faster“
Required for advanced applications like EPI and contrast enhanced MR-Angio
Level of peripheral nerve and muscle stimulation is reached. Searching for compromises regarding amplitude, rise time, FoV, linearity.
Amplitude: 40 mT/m
Slew Rate: 200 T/m/s
Rise Time: 200 s
Max. 40 cm FOV
Using a larger number of local coils, the s/n can be improved significantly in peripheral regions but not in the center of the patient.