TERMIUM Plus®
The Government of Canada’s terminology and linguistic data bank.
TRANSVERSE RELAXATION [2 records]
Record 1 - internal organization data 2016-02-26
Record 1, English
Record 1, Subject field(s)
- Magnetic Resonance Imaging
Universal entry(ies) Record 1
Record 1, Main entry term, English
- T2 relaxation time
1, record 1, English, T2%20relaxation%20time
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
- transverse relaxation time 2, record 1, English, transverse%20relaxation%20%20time
correct
- spin-spin relaxation time 3, record 1, English, spin%2Dspin%20relaxation%20time
correct
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
A measure of the time taken for spinning protons to lose phase coherence among the nuclei spinning perpendicular to the main field due to interaction between spins, resulting in a reduction in the transverse magnetization. 4, record 1, English, - T2%20relaxation%20time
Record number: 1, Textual support number: 1 OBS
[T2 is a] tissue-specific time constant ... 5, record 1, English, - T2%20relaxation%20time
Record 1, French
Record 1, Domaine(s)
- Imagerie par résonance magnétique
Entrée(s) universelle(s) Record 1
Record 1, Main entry term, French
- temps de relaxation T2
1, record 1, French, temps%20de%20relaxation%20T2
correct, masculine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
- temps de relaxation transversale 2, record 1, French, temps%20de%20relaxation%20transversale
correct, masculine noun
- temps de relaxation spin-spin 1, record 1, French, temps%20de%20relaxation%20spin%2Dspin
correct, masculine noun
Record 1, Textual support, French
Record number: 1, Textual support number: 1 DEF
[...] constante de temps propre à chaque tissu, caractérisant la relaxation transversale des protons de ce tissu, placés dans un champ magnétique uniforme [...] après qu'ils aient été excités par une impulsion électromagnétique de fréquence appropriée (fréquence de Larmor). 1, record 1, French, - temps%20de%20relaxation%20T2
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 2012-01-09
Record 2, English
Record 2, Subject field(s)
- Electromagnetic Radiation
Record 2, Main entry term, English
- spin-spin relaxation
1, record 2, English, spin%2Dspin%20relaxation
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
- transverse relaxation 2, record 2, English, %20%20transverse%20relaxation
correct
Record 2, Textual support, English
Record number: 2, Textual support number: 1 DEF
Magnetic relaxation, observed after application of weak magnetic fields, in which the excess potential energy associated with electron spins in a magnetic field is redistributed among the spins, resulting in heating of the spin system. 3, record 2, English, - spin%2Dspin%20relaxation
Record 2, Key term(s)
- spin spin relaxation
Record 2, French
Record 2, Domaine(s)
- Rayonnements électromagnétiques
Record 2, Main entry term, French
- relaxation spin-spin
1, record 2, French, relaxation%20spin%2Dspin
correct, feminine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
- relaxation transversale 1, record 2, French, relaxation%20transversale
correct, feminine noun
Record 2, Textual support, French
Record number: 2, Textual support number: 1 CONT
En RMN [résonance magnétique nucléaire] classique, tous les noyaux devraient résonner pour un couple déterminé (Bo, B1 : fréquence de radiation utilisée). Dans la réalité il faut tenir compte du phénomène de relaxation. En effet, après absorption de la radiation, le noyau a tendance à revenir à l'équilibre. On distingue deux sortes de relaxations : Relaxation spin-milieu ou spin-réseau, dite relaxation longitudinale. Ce phénomène longitudinal est provoqué par les molécules qui subissent un mouvement de rotation, de vibration, de translation et par les propriétés magnétiques des noyaux. L'énergie de translation est transférée au réseau du milieu. Relaxation spin-spin ou relaxation transversale. Cette relaxation est due à l'échange mutuel de spins entre les noyaux voisins, ce qui provoque un champ induisant la transition. 2, record 2, French, - relaxation%20spin%2Dspin
Record 2, Key term(s)
- relaxation spin spin
Record 2, Spanish
Record 2, Textual support, Spanish
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