ACTIVE ACOUSTIC SCREENING - DESIGN PRINCIPLES FOR QUIET GRADIENT COILS IN MRI

被引：36

作者：

MANSFIELD, P

GLOVER, P

BOWTELL, R

机构：

[1] Magnetic Resonance Centre, Department of Physics, University of Nottingham, Nottingham, University Park

来源：

MEASUREMENT SCIENCE AND TECHNOLOGY | 1994年 / 5卷 / 08期

关键词：

Acoustic noise - Acoustic wave absorption - Attenuation - Electric conductors - Equations of motion - Interference suppression - Magnetic fields - Magnetic resonance imaging - Medical imaging - Nuclear magnetic resonance - Oscillators (electronic) - Switching;

D O I：

10.1088/0957-0233/5/8/026

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A new technique for quiet gradient coil design in magnetic resonance imaging is proposed. Preliminary results on a test coil show acoustic noise attenuation behaviour consistent with theory. Active acoustic screening will significantly reduce the dangers to patients of high-level exposure to noise in medical resonance imaging scanners.

引用

页码：1021 / 1025

页数：5

共 5 条

[1] MAGNETIC-FIELD GRADIENT COILS FOR NMR IMAGING [J].

BANGERT, V ;

MANSFIELD, P .

JOURNAL OF PHYSICS E-SCIENTIFIC INSTRUMENTS, 1982, 15 (02) :235-239

[2] ACTIVE MAGNETIC SCREENING OF GRADIENT COILS IN NMR IMAGING [J].

MANSFIELD, P ;

CHAPMAN, B .

JOURNAL OF MAGNETIC RESONANCE, 1986, 66 (03) :573-576

[3] ACTIVE MAGNETIC SCREENING OF COILS FOR STATIC AND TIME-DEPENDENT MAGNETIC-FIELD GENERATION IN NMR IMAGING [J].

MANSFIELD, P ;

CHAPMAN, B .

JOURNAL OF PHYSICS E-SCIENTIFIC INSTRUMENTS, 1986, 19 (07) :540-545

[4]

MANSFIELD P, 1993, Patent No. 9311321

[5]

Mansfield P., 1982, NMR IMAGING BIOMEDIC, V1st ed.

← 1 →