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60 何種磁振造影脈衝程序(pulse sequence)對梯度磁場之負載時段(duty cycle)需求最高?
(A) spin-echo imaging
(B) gradient-echo imaging
(C) echo-planar imaging
(D) inversion-recovery imaging


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10
 【站僕】摩檸Morning:有沒有達人來解釋一下?
倒數 1天 ,已有 1 則答案
Klose Liu 國二下 (2020/06/12):

echo-planar imaging(EPI)須快速取樣,需要有high power gradients,因此EPI對梯度磁場之負載時段的要求最高。

      Duty cycle is a percentage of time during the TR period that the gradient is permitted to be at maximum amplitude during an imaging sequence.

      Duty cycle slew rate attainable slices

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60 何種磁振造影脈衝程序(pulse sequence)對梯度磁場之負載時段(..-阿摩線上測驗