magnetic resonance


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Related to magnetic resonance: nuclear magnetic resonance

magnetic resonance (MR)

a phenomenon in which the atomic nuclei of certain materials placed in a strong, static magnetic field absorb radio waves supplied by a transmitter at particular frequencies. The energy of the radio waves promotes the nuclei from a low-energy state, in which the nuclear spin is aligned parallel to the magnetic field, to a higher-energy state, in which the nuclear spin has a component transverse or opposed to the field. These nuclei occasionally revert to the lower-energy state by emitting photons at characteristic (resonance) frequencies, providing information about the local magnetic field at the nuclei. The rate at which the nuclei revert, or relax, to the lower-energy state when the source of radio waves is turned off is another important factor. See also relaxation time.

magnetic resonance

The absorption or emission of electromagnetic energy by nuclei in a static magnetic field after excitation by a suitable resonance frequency magnetic field; the peak resonance frequency is proportional to the magnetic field, and given by the Larmor equation.

magnetic resonance

The absorption or emission of electromagnetic energy by nuclei in a static magnetic field after excitation by a suitable resonance frequency magnetic field; the peak resonance frequency is proportional to the magnetic fiel, and given by the Larmor equation. See Magnetic responance imaging.

Patient discussion about magnetic resonance

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References in periodicals archive ?
Related reports on Magnetic Resonance Imaging Systems:
Biophan's technology portfolio includes solutions developed to enable implanted medical systems such as pacemakers, interventional surgical devices such as catheters and guidewires, and implants such as stents to be safely and effectively imaged by Magnetic Resonance Imaging (MRI) systems.
A Basic Investigation of Heating Effects on Total Hip Prosthesis in Combination with a Simulated Skin Contact of the Inner Thighs During Magnetic Resonance Imaging (MRI) with a 1.
Magnetic resonance instruments excite the magnetism of atomic nuclei in a sample.
He said he has known Weinstock, chief executive officer of Magnetic Resonance Diagnostics Corp.
market for magnetic resonance (MRI), computed tomography (CT) and nuclear medicine was valued at over $5.
Table 2: Global Magnetic Resonance Imaging Equipment Market by
Scientists discovered the phenomenon of magnetic resonance (MR) in the 1940s and used it initially for determining chemical structures.
EP-3533 is a novel gadolinium-based collagen-specific magnetic resonance (MRI) imaging agent.
It plagues other research with noble gases, such as magnetic resonance studies of biological molecules.
The hallmark of all types of labyrinthitis on magnetic resonance imaging (MRJ) is enhancement of the membranous labyrinth on T1-weighted images following the administration of intravenous contrast medium (gadolinium).
The instrument, known as the magnetic resonance analyzer (MRA(TM)), is the patented and proprietary technology of Magnetic Resonance Diagnostics Corporation (MRD) of Thousand Oaks.

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