Measurement of electrical current density distribution in a simple head phantom with magnetic resonance imaging

Physics in Medicine and Biology

Volumn 44, Issue 1, 1999, Pages 281-291

  Gamba, Humberto R ^a   Bayford, Richard ^b   Holder, David ^a  

^a UNIVERSITY COLLEGE LONDON   (United Kingdom)

^b MIDDLESEX UNIVERSITY   (United Kingdom)

Author keywords

[No Author keywords available]

Indexed keywords

SODIUM CHLORIDE;

ARTICLE; ELECTRIC CURRENT; HEAD; IMAGE ANALYSIS; IMPEDANCE; NONHUMAN; NUCLEAR MAGNETIC RESONANCE IMAGING; PHANTOM; PLASTER CAST; PRIORITY JOURNAL; SKULL;

BRAIN; COMPUTING METHODOLOGIES; ELECTRIC CONDUCTIVITY; HEAD; HUMANS; IMAGE PROCESSING, COMPUTER-ASSISTED; MAGNETIC RESONANCE IMAGING; PHANTOMS, IMAGING; SKULL; SODIUM CHLORIDE;

EID: 0032945647     PISSN: 00319155     EISSN: None     Source Type: Journal    
DOI: 10.1088/0031-9155/44/1/020     Document Type: Article

References (11)

1. Bayford R H, Boone K G, Hanquan Y and Holder D S 1996 Improvement of the positional accuracy of EIT images of the head using a Lagrange multiplier reconstruction algorithm with diametric excitation Physiol. Meas. 17 A49-A57
2. Gamba H R 1996 Measurement of electrical current density distribution within the tissues of the head by magnetic resonance imaging PhD Thesis University College London
3. Gamba H R and Delpy D T 1997 Artefacts in MR images of electrical current Phys. Med. Biol. 42 2481-91
4. _ 1998 Measurement of electrical current density distribution within the tissues of the head by magnetic resonance imaging Med. Biol. Eng. Comptut. 36 165-70
5. Holder D S 1992 Electrical impedance tomography with cortical or scalp electrodes during global cerebral ischaemia in the anaesthetised rat Clin. Phys. Physiol. Meas. 13 87-98
6. _ 1993 Physiological constraints to imaging brain function with EIT and scalp electrodes Clinical and Physiological Applications of Electrical Impedance Tomography ed D S Holder (London: UCL Press) pp 185-200
7. Holder D S and Brown B H 1993 Biomedical application of EIT: a critical review Clinical and Physiological Applications of EIT ed D S Holder (London: UCL Press) pp 166-75
8. Joy M, Scott G and Henkelman M 1989 In vivo detection of applied electric current by magnetic resonance imaging Magn. Reson. Imaging 7 89-94
9. Patel M and Hu X 1993 Direct calculation of wrap-free phase image Proc. Soc. Magn. Reson. Med. 2 721
10. Scott G C, Joy M L G, Armstrong R L and Helkelman R M 1991 Measurement of non-uniform current density by magnetic resonance IEEE Trans Magn. Imaging 10 362-74
11. _ 1992 Sensitivity of magnetic-resonance current-density imaging J. Magn. Reson 97 235-54