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by lostlogin
990 days ago
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> there are some published works that design MRI sequences ("pattern" in which you operate the MRI machine to switch/modulate the electromagnets of the gradient coils, send RF pulses, and record the received RF pulses) in such a way that they reduce or don't cause the majority of the noise from the switching of the gradient coil in a typical MRI sequence. There are and they have various names from vendors (whisper mode, quiet suite etc). Unfortunately these modes of operation are usually a bit limiting in terms of resolution and make sequences longer. They do reduce the noise. By and large, if you give kids a movie to watch you’ll get 30 minutes of them remaining still. Clinically, the application for noise reduction is often for patients whose hearing is at risk and can’t be protected effectively. Animals and patients with pathology which prevents earplug or headphone use etc. https://www.siemens-healthineers.com/en-us/magnetic-resonanc... |
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