CYN
发表于 2025-3-26 21:28:49
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发微光
发表于 2025-3-27 04:34:59
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Observe
发表于 2025-3-27 05:36:47
The Slice Select Gradientdient imposes a gradual change in the main magnetic field from the head to the foot end of the patient. If we graph the z gradient with the magnitude of the magnetic field on the y axis and the position along the long axis of the body on the x axis, then we obtain the straight line shown in the graph in fig. 8.1 below.
别名
发表于 2025-3-27 11:38:16
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Fraudulent
发表于 2025-3-27 15:10:31
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一加就喷出
发表于 2025-3-27 18:26:53
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expdient
发表于 2025-3-28 00:36:37
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遗传学
发表于 2025-3-28 02:37:15
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single
发表于 2025-3-28 07:58:19
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法官
发表于 2025-3-28 10:43:41
T2 and the Spin-Echo Pulse CycleIn preceding chapters, we glibly referred to the T2 decay of the Mx vector after application of the RF pulse. Actually, we oversimplified the case in order not to obscure the understanding of the relationship of T1 and T2 to TR and TE. But now, it is time to delve more deeply into what T2 actually is.