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Titlebook: Echo-Planar Imaging; Theory, Technique an Franz Schmitt,Michael K. Stehling,Robert Turner Book 1998 Springer-Verlag Berlin Heidelberg 1998

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樓主: ALLY
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發(fā)表于 2025-4-1 05:41:58 | 只看該作者
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發(fā)表于 2025-4-1 09:20:22 | 只看該作者
U. Milman,M. Alperin,R. van Raalte,S. Reish as resolution, contrast, scan time, and field of view. The total available nuclear MR signal in biological tissues is extremely small, a problem aggravated by the typical needs of the researcher or clinician for contrast and resolution. Improvements in spatial resolution, for example, necessitate
63#
發(fā)表于 2025-4-1 10:33:01 | 只看該作者
Advances in Medical Engineeringmagnetic resonance (MR) scanner hardware. The high performance required, particularly in the generation of large rapidly switched magnetic field gradients, meant that in the past it was generally not possible to implement EPI on standard clinical imaging systems, and consequently much of the develop
64#
發(fā)表于 2025-4-1 16:18:16 | 只看該作者
https://doi.org/10.1007/978-981-13-9077-7. After a single excitation an appropriate gradient sequence encodes the magnetization repeatedly, thus filling the whole k-space. This allows, for example, the freezing of dynamic processes and the observation of these processes in real time. It has been shown that EPI can provide head and body ima
65#
發(fā)表于 2025-4-1 18:33:47 | 只看該作者
66#
發(fā)表于 2025-4-2 00:51:48 | 只看該作者
,Modified Big Bang–Big Crunch Algorithm,chniques. For most conventional MRI sequences, data acquisition is still slower than many dynamic physiological processes, often yielding images plagued with motion artifacts that can obscure important information. On the other hand, EPI can ensure successful scanning of uncooperative patients and t
67#
發(fā)表于 2025-4-2 06:37:23 | 只看該作者
68#
發(fā)表于 2025-4-2 10:11:02 | 只看該作者
69#
發(fā)表于 2025-4-2 14:46:55 | 只看該作者
Daniel C. Jones,Iwan P. Williamsibility to motion artifacts was the prime reason for conventional magnetic resonance (MR) imaging to be restricted primarily to imaging the brain. However, with the evolution of several ultrafast imaging techniques [1, 3] this restriction has been lifted. Cardiac and abdominal MR imaging have become
70#
發(fā)表于 2025-4-2 19:00:09 | 只看該作者
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