TIME CHANGE MEASUREMENT METHOD FOR GRADIENT MAGNETIC FIELD OF MRI DEVICE

PURPOSE:To measure eddy current magnetic field of high accuracy over a few hundred milliseconds by obtaining a high NMR signal with the trailing edge of gradient magnetic field at any timing. CONSTITUTION:A sample is placed within the imaging zone of an MRI device, and excited with 90-degree pulses....

Full description

Saved in:
Bibliographic Details
Main Authors KONO OSAMU, KONO MASAHARU
Format Patent
LanguageEnglish
Published 01.10.1992
Subjects
DIAGNOSIS
HUMAN NECESSITIES
HYGIENE
IDENTIFICATION
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
MEDICAL OR VETERINARY SCIENCE
PHYSICS
SURGERY
TESTING
Online AccessGet full text

Cover

More Information
Summary:PURPOSE:To measure eddy current magnetic field of high accuracy over a few hundred milliseconds by obtaining a high NMR signal with the trailing edge of gradient magnetic field at any timing. CONSTITUTION:A sample is placed within the imaging zone of an MRI device, and excited with 90-degree pulses. NMR signals thereby generated immediately in the sample are measured. The sequence of the aforesaid signal measurement is repeated, while changing the application timing of the 90-degree pulses to the trailing edge of gradient magnetic field.
Bibliography:Application Number: JP19910059295