A modified quadrupole gradient set for use in high resolution MRI tagging.
Magn Reson Med
; 32(2): 246-50, 1994 Aug.
Article
em En
| MEDLINE
| ID: mdl-7968449
ABSTRACT
A special purpose gradient set with a Cos(2 theta) current distribution has been constructed for high resolution MR imaging of small samples in a clinical Signa 1.5 T scanner using the existing gradient amplifiers. The X, Y, and Z gradient coils can attain gradient field strengths of 11.3, 4.7, and 15.2 G/cm at 100 amps current, respectively, with a slew rate of 20 G/cm/ms and usable ramp time of 150 microseconds. Field distortions are less than 2% over the central 8 cm of the bore, suitable for high resolution tagging of isolated canine hearts.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Imageamento por Ressonância Magnética
Limite:
Animals
Idioma:
En
Revista:
Magn Reson Med
Ano de publicação:
1994
Tipo de documento:
Article