Utsunomiya University

Asahikawa Medical College

Yoshifumi Yamada

Kunio Tanaka

Zenwemon Abe

The phase of nuclear magnetization in a target placed in a homogeneous magnetic field and excited by a high-frequency magnetic field is encoded by applying a specifying magnetic field with a non-linear gradient thereto, and the specifying magnetic field is scanned across the target, and the encoded NMR signals are received and processed so as to produce an image of the distribution of nuclear magnetic substance in the target.

Method for imaging nuclear magnetic resonance signals by using

The disclosed method of scanning a specifying magnetic field for nuclear magnetic resonance (NMR) imaging comprises steps of generating the specifying magnetic field by synthesis of a static magnetic field and a magnetic field produced by a group of magnetomotive forces, and moving the center of the specifying magnetic field by superposing a scanning magnetic field from a scanner coil in a certain direction of the magnetic field of the group of magnetomotive forces.

Method of scanning specifying magnetic field for nuclear magnetic

The disclosed method comprises steps of alternately applying a strong static magnetic field and a weak homogeneous static magnetic field to a body being measured (target), selectively exciting nuclear magnetic resonance (NMR) at a specific portion of the target by applying a high-frequency magnetic field and a specifying magnetic field thereto, detecting NMR signals from the thus excited portion, and scanning the target by repeating the selective excitation and the detection.

Growing community of inventors

Utsunomiya, Japan

Yoshifumi Yamada