G - Physics – 01 – R
Patent
G - Physics
01
R
G01R 33/48 (2006.01) A61B 5/055 (2006.01) G01N 24/08 (2006.01) G01R 33/34 (2006.01) G01R 33/54 (2006.01)
Patent
CA 2311630
A MRI method that employs cylindrical coordinates uses an elongated catheter (40) which is asociated with an RF pulse transmitting antenna and an RF pulse transmitting body coil (37). Circumferential phase encoding is accomplished by applying an intial RF pulse from either the catheter antenna (40) or the body coil (37) and subsequently applying an initial series of RF pulses with the source alternating between the antenna and the body coil.
Un procédé d'imagerie par résonance magnétique (IRM) dans lequel on utilise des coordonnées cylindriques comprend un cathéter allongé (40) qui est associé à une antenne de transmission d'impulsions RF et à une antenne corps (37) de transmission d'impulsions RF. La modulation de phase circonférentielle est effectuée au moyen de l'application d'une impulsion RF de départ provenant de l'antenne (40) du cathéter ou de l'antenne corps (37) suivie de l'application d'une série initiale d'impulsions RF dont la source est alternativement l'antenne ou l'antenne corps.
Atalar Ergin
Ocali Ogan
Smart & Biggar
The Johns Hopkins University
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