牙齿
发表于 2025-3-25 05:30:40
https://doi.org/10.1007/978-3-642-82477-7Magnetic resonance is an interaction between a magnet and a magnetic field. The most familiar magnet is a compass needle. The most familiar magnetic field is that of the Earth. The most familiar interaction of a magnet with a magnetic field is the alignment of a compass needle with the Earth’s field: The compass points north and south.
comely
发表于 2025-3-25 10:37:25
Ullrich Pietsch,Václav Holý,Tilo BaumbachA clinical MRI scanner superficially resembles a CT scanner: There is a large gantry into which the patient is placed, a complex of computers, a control console, and various pieces of electronic apparatus. However, the dimensions of the gantries are quite different.
革新
发表于 2025-3-25 14:01:43
X-Ray Scattering by Rough MultilayersDue to the nature of the magnetic probe used in MRI, this technique possesses several fundamental advantages: (1) tissue can be characterized in a number of ways, (2) any plane can be imaged, (3) bone is invisible, so all anatomic regions can be examined, (4) no contrast medium is required, and (5) there is no ionizing radiation.
FLAGR
发表于 2025-3-25 17:29:20
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antidepressant
发表于 2025-3-25 20:32:49
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tariff
发表于 2025-3-26 02:06:15
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intercede
发表于 2025-3-26 06:07:50
Applications and Future Prospects,osis. Our vision sees only the surface. What we wish to examine is the body’s interior. To provide this information, the patient’s body is interrogated by means of various probes. Each probe interacts in some way with the tissues. The nature and extent of the interaction and its anatomic location ar
煤渣
发表于 2025-3-26 11:00:55
https://doi.org/10.1007/978-4-431-55028-0le is actually a small bar magnet which oscillates at a particular frequency when driven from its resting state. The frequency of its oscillation is proportional to the field strength in which it finds itself. While the simplest means of stimulating a compass needle is by a simple tap of the finger,
博识
发表于 2025-3-26 14:43:57
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breadth
发表于 2025-3-26 19:52:37
Ullrich Pietsch,Václav Holý,Tilo Baumbachmight not be worth the major effort already undertaken to develop clinical scanners. The great potential of MRI derives from its ability to provide several means of characterizing normal and pathological tissues.