53.下列何者為MRI的脂肪壓抑(fat suppression)技術? (A..-阿摩線上測驗
1F Steven Huang已 大四上 (2018/05/22)
(A)STIR :抑制脂肪 Magnetization transfer techniques are equally effective for both non-contrast and contast-enhanced MRA. Because gadolinium (Gd) enhancement is caused by a water-Gd ion interaction (not macromolecular cross-relaxation), MT pulses suppress the signal from background tissues and render Gd-enhanced areas more conspicuous. Time of flight MRA without (left) and with (right) MT suppression. Note better visualization of small vessels after MT pulse. 出處:http://mriquestions.com/magnetization-transfer.html
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