| podobné slovo | definícia |
electron paramagnetic resonance
(encz) | electron paramagnetic resonance, n: |
functional magnetic resonance imaging
(encz) | functional magnetic resonance imaging, n: |
magnetic resonance imaging
(encz) | magnetic resonance imaging,metoda zjištění hustoty protonů Zdeněk Brož |
nuclear magnetic resonance
(encz) | nuclear magnetic resonance, n: |
proton magnetic resonance
(encz) | proton magnetic resonance, n: |
magnetic resonance imaging
(gcide) | magnetic resonance imaging \mag*net"ic res"on*ance im"ag*ing\ n.
(Medicine)
a medical diagnostic procedure utilizing the phenomenon of
nuclear magnetic resonance to generate images of internal
parts of the body. It depends on the differential absorption
of electromagnetic radiation by different types of living
tissue in a magnetic field. It is complementary to X-ray
imaging in that the softer tissue show more prominently in
magnetic resonance images, rather than bone, as with X-rays.
It is a non-invasive procedure, allowing such images to be
obtained without penetration of the tissue by objects. It is
abbreviated MRI. As with computerized tomography, the
results are usually presented as images of sequential planar
sections of that part of the body of concern to the
physician.
[PJC] |
nuclear magnetic resonance
(gcide) | nuclear magnetic resonance \nu"cle*ar mag*net"ic res"on*ance\ n.
(Physics)
The specific absorption and re-emission of electromagnetic
radiation at characteristic wavelengths by atomic nuclei in a
magnetic field. It is abbreviated NMR. The wavelength of
the radiation absorbed depends on the type of nucleus, the
intensity of the magnetic field, and the local chemical
environment in which the nucleus resides. It is the latter
effect (called the chemical shift), by which atoms of
specific elements in different chemical compounds show a
different resonance frequency, which gives rise to the
greatest utility of this phenomenon in analyzing the chemical
structure of substances. Similar effects of the chemical
environment permit the discrimination of different types of
living tissue by virtue of their different chemical
composition, thus permitting utilization of the phenomenon in
medical diagnostic instruments, especially for {magnetic
resonance imaging}.
[PJC] |
blood-oxygenation level dependent functional magnetic resonance imaging
(wn) | blood-oxygenation level dependent functional magnetic resonance imaging
n 1: functional magnetic resonance imaging that relies on
intrinsic changes in hemoglobin oxygenation [syn: {blood-
oxygenation level dependent functional magnetic resonance
imaging}, BOLD FMRI] |
electron paramagnetic resonance
(wn) | electron paramagnetic resonance
n 1: microwave spectroscopy in which there is resonant
absorption of radiation by a paramagnet [syn: {electron
spin resonance}, ESR, electron paramagnetic resonance] |
functional magnetic resonance imaging
(wn) | functional magnetic resonance imaging
n 1: a form of magnetic resonance imaging of the brain that
registers blood flow to functioning areas of the brain
[syn: functional magnetic resonance imaging, fMRI] |
magnetic resonance imaging
(wn) | magnetic resonance imaging
n 1: the use of nuclear magnetic resonance of protons to produce
proton density images [syn: magnetic resonance imaging,
MRI] |
nuclear magnetic resonance
(wn) | nuclear magnetic resonance
n 1: resonance of protons to radiation in a magnetic field [syn:
nuclear magnetic resonance, NMR, {proton magnetic
resonance}] |
proton magnetic resonance
(wn) | proton magnetic resonance
n 1: resonance of protons to radiation in a magnetic field [syn:
nuclear magnetic resonance, NMR, {proton magnetic
resonance}] |