Magnetic resonance imaging system with pointing device
摘要
A magnetic resonance (MR) imaging system for use in a medical procedure employs an open main magnet allowing access to a portion of a patient within an imaging volume, for producing a main magnetic field over the imaging volume; a set of open gradient coils which provide magnetic fields gradients over the imaging volume without restricting access to the imaging volume; a radiofrequency coil set for transmitting RF energy into the imaging volume to nutate nuclear spins within the imaging volume and receive an MR response signal from the nuclear spins; and a pointing device for indicating the position and orientation of a plane in which an image is to be acquired; an image control means for operating power supplies for the gradient coils and the RF coils to acquire an MR signal from the desired imaging plane; and a computation unit for constructing an image of the desired imaging plane. The MR imaging system is intended to operate to provide images to a physician during medical procedures to guide the physician in his procedures.
申请公布号
US5365927(A)
申请公布日期
1994.11.22
申请号
US19930146345
申请日期
1993.11.02
申请人
GENERAL ELECTRIC COMPANY
发明人
ROEMER, PETER B.;BLUMENFELD, SAMUEL M.;VOSBURGH, KIRBY G.;CLINE, HARVEY E.;BARBER, WILLIAM D.;LORENSEN, WILLIAM E.;ST. PETERS, RICHARD L.;SCHENCK, JOHN F.;DUMOULIN, CHARLES L.;DARROW, ROBERT D.;HARDY, CHRISTOPHER J.