ANALYSIS OF FREQUENCY MAGNETIC-FIELD PENETRATION IN A BODY WITHIN MAGNETIC-RESONANCE-IMAGING ANTENNA

被引：0
|
作者：
OCHI, H [1 ]
YAMAMOTO, E [1 ]
SAWAYA, K [1 ]
ADACHI, S [1 ]
机构：
[1] TOHOKU UNIV,FAC ENGN,SENDAI,MIYAGI 980,JAPAN
来源：
SYSTEMS AND COMPUTERS IN JAPAN | 1995年 / 26卷 / 09期
关键词：
MRI ANTENNA; IMPEDANCE METHOD; METHOD OF RICHMOND; BIOLOGICAL BODY;
D O I：
10.1002/scj.4690260908
中图分类号：
TP3 [计算技术、计算机技术];
学科分类号：
0812 ;
摘要：
The authors have previously developed a computer code for obtaining the current distribution on the magnetic resonance imaging (MRI) antenna loaded by a male model with an arbitrary geometry and material properties by incorporating the impedance method into the method of Richmond. Using this method, RF magnetic field penetration in a biological body within an MRI antenna is discussed theoretically. It is found that the RF magnetic field produced by the current in the body does not cancel the incident RF magnetic field produced by the current on the MRI antenna, since the phase difference between these magnetic fields deviates from 180 degrees.
引用
收藏
页码：81 / 89
页数：9
相关论文
共 50 条
  • [21] PENETRATION OF SOLVENTS AND THEIR MIXTURES INTO POLYETHYLENE AS STUDIED BY MAGNETIC-RESONANCE-IMAGING
    ROUSSEL, JC
    SERPE, G
    GAUTIER, S
    RODGERS, P
    JOURNAL DE CHIMIE PHYSIQUE ET DE PHYSICO-CHIMIE BIOLOGIQUE, 1994, 91 (06) : 704 - 709
  • [22] PENETRATION OF LOW-FREQUENCY MAGNETIC-FIELD IN CADMIUM
    MACINNES, WM
    PROBST, PA
    COLLET, B
    HUGUENIN, R
    HELVETICA PHYSICA ACTA, 1975, 48 (04): : 435 - 435
  • [23] MAGNETIC-RESONANCE IMAGING - EFFECTS OF MAGNETIC-FIELD STRENGTH
    CROOKS, LE
    ARAKAWA, M
    HOENNINGER, J
    MCCARTEN, B
    WATTS, J
    KAUFMAN, L
    RADIOLOGY, 1984, 151 (01) : 127 - 133
  • [24] MAGNETIC-FIELD STABILITY ISSUES IN MAGNETIC-RESONANCE IMAGING
    SPENCER, CM
    HUNG, DT
    PERLMUTTER, RJ
    WILFLEY, BP
    IEEE TRANSACTIONS ON MAGNETICS, 1988, 24 (02) : 1276 - 1279
  • [25] ON THE RESONANCE OSCILLATION OF A CHARGED BODY IN A MAGNETIC-FIELD
    TIKHONOV, AA
    VESTNIK LENINGRADSKOGO UNIVERSITETA SERIYA MATEMATIKA MEKHANIKA ASTRONOMIYA, 1988, (03): : 113 - 115
  • [26] BODY-TEMPERATURE MAPPING BY MAGNETIC-RESONANCE-IMAGING
    LEWA, CJ
    DECERTAINES, JD
    SPECTROSCOPY LETTERS, 1994, 27 (10) : 1369 - 1419
  • [27] CARDIAC-FUNCTION ANALYSIS WITH LOW FIELD MAGNETIC-RESONANCE-IMAGING
    THOMPSON, MA
    ORTENDAHL, DA
    HOLT, WW
    HIGGINS, CB
    PROCEEDINGS OF THE ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY, PTS 1-4, 1988, : 327 - 328
  • [28] EARTHS FIELD MAGNETIC-RESONANCE-IMAGING IN DISTURBED ENVIRONMENT
    FAVRE, B
    BONCHE, JP
    MEHIER, H
    BULLETIN OF MAGNETIC RESONANCE, VOL 11, NOS 3/4: PROCEEDINGS OF THE INTERNATIONAL SOCIETY OF MAGNETIC RESONANCE TENTH MEETING, 1989, : 385 - 385
  • [29] LOW-FIELD CINE MAGNETIC-RESONANCE-IMAGING
    JONES, RA
    METCALFE, MJ
    REDPATH, TW
    SMITH, FW
    WALTON, S
    BRITISH JOURNAL OF RADIOLOGY, 1990, 63 (745): : 65 - 68
  • [30] MAGNETIC-RESONANCE-IMAGING OF THE ABDOMEN
    LEE, JKT
    TOPICS IN MAGNETIC RESONANCE IMAGING, 1995, 7 (02) : 69 - 69
12345