Influence of Magnetically-Induced E-Fields on Cardiac Electric Activity during MRI: A Modeling Study

Magnetic Resonance in Medicine

Volumn 50, Issue 6, 2003, Pages 1180-1188

  Liu, Feng ^a   Xia, Ling ^b   Crozier, Stuart ^a  

^a UNIVERSITY OF QUEENSLAND   (Australia)

^b ZHEJIANG UNIVERSITY   (China)

Author keywords

Cardiac stimulation; ECG; Gradient field; Heart model; Human body model; Induced E fields; MRI

Indexed keywords

BIOMAGNETISM; ELECTRIC FIELDS; ELECTROCARDIOGRAPHY; FINITE DIFFERENCE METHOD; HEART; MAGNETIC RESONANCE IMAGING;

CARDIAC STIMULATION; E-FIELD; GRADIENT FIELDS; HEART MODEL; HUMAN BODY MODELING;

ELECTROMAGNETIC FIELD EFFECTS;

ARTICLE; CALCULATION; ELECTRIC CONDUCTIVITY; ELECTRIC FIELD; ELECTROCARDIOGRAM; HEART ARRHYTHMIA; HEART CONDUCTION; HEART STIMULATION; HUMAN; MAGNETIC FIELD; MAGNETISM; MODEL; NUCLEAR MAGNETIC RESONANCE IMAGING;

EID: 0345168013     PISSN: 07403194     EISSN: None     Source Type: Journal    
DOI: 10.1002/mrm.10639     Document Type: Article

References (31)

1. Magin RL, Liburdy RP, Persson B. Biological effects and safety aspects of nuclear magnetic resonance imaging and spectroscopy. Ann NY Acad Sci 1992;649:1-402.
2. Schmitt F, Stehling MK, Turner R. Echo-planar imaging theory, technique and application. New York: Springer; 1998.
3. Schaefer DJ, Bourland JD, Nyenhuis JA. Review of patient safety in time-varying gradient fields. J Magn Reson Imaging 2000;12:20-29.
4. Kangarlu A, Robitaille PML. Biological effects and health implications in magnetic resonance imaging. Concepts Magn Reson 2000;12:321-359.
5. Reilly JP. Peripheral nerve stimulation by induced electric currents: exposure to time-varying magnetic fields. Med Biol Eng Comput 1989;27:101-110.
6. Brand M, Heid O. Induction of electric fields due to gradient switching: a numerical approach. Magn Reson Med 2002;48:731-734.
7. Liu F, Crozier S, Zhao H. Finite-difference time-domain based studies of MRI pulsed field gradient-induced eddy currents inside the human body. Concepts Magn Reson 2002;15:26-36.
8. Forbes LK, Crozier S. On a possible mechanism for peripheral nerve stimulation during magnetic resonance imaging scans. Phys Med Biol 2001;46:591-608.
9. Bowtell R, Bowley RM. Analytic calculations of the E-fields induced by time-varying magnetic fields generated by cylindrical gradient coils. Magn Reson Med 2000;44:782-790.
10. Gandhi OP, Chen XB. Specific absorption rates and induced current densities for an anatomy-based model of the human for exposure to time-varying magnetic fields of MRI. Magn Reson Med 1999;41:816-823.
11. Ahmed S, Shellock FG. Magnetic resonance imaging safety: implications for cardiovascular patients. J Cardiovasc Magn Reson 2001;3:171-182.
12. Tacker WA, Geddes LA. The laws of electrical stimulation of cardiac tissue. Proc IEEE 1996;84:355-365.
13. Lohr F, Essig M, Bock M, Oster H, Wenz F, Knopp MV. Ventricular arrhythmia during MR angiography with fast ramping gradients in a patient with multiple coronary artery bypass grafts (CABG). J. Magn Reson Imaging 1999;9:624-626.
14. Schenck JF. Safety of strong, static magnetic fields. J Magn Reson Imaging 2000;12:2-19.
15. Liu F, Crozier S, Zhao H. On the E-field gradients induced by gradient coils in MRI. IEEE Trans Biomed Eng 2003;50:804-815.
16. Liu F, Zhao H, Crozier S. Calculation of E-fields induced by the movement of the human body and head in high-field MRI. J Magn Reson 2003;161:99-107.
17. Lu WX, Xia L. Computer simulation of epicardial potentials using heart-torso model with realistic geometry. IEEE Trans Biomed Eng 1996;43:211-217.
18. Xia L, Lu WX, Duan YS. Microcomputer-based cardiac arrhythmia simulation model. Med Biol Eng Comp 1996;34(Suppl I):42-43.
19. Li G, He B. Localization of the site of origin of cardiac activation by means of a heart-model-based electrocardiographic imaging approach. IEEE Trans Biomed Eng 2001;48:660-669.
20. Liu F, Xia L, Zhang X. Analysis of the influence of the electrical asynchrony on regional mechanics of the infracted left ventricle using electromechanical heart models. JSME Int J 2003;46(A):1-9.
21. o coils. MAGMA 1995;3:49-55.
22. Crozier S, Doddrell DM. Gradient-coil design by simulated annealing. J Magn Reson A 1993;103:354-357.
23. Yamaguchi M, Andoh T, Goto T, Hosono A, Kawakami T, Okumra F. Heart stimulation by time-varying magnetic fields. Jpn J Appl Phys 1992;31:2310-2316.
24. Mouchawar GA, Bourland JD, Nyenhuis JA. Closed-chest cardiac stimulation with a pulsed magnetic field. Med Biol Eng Comput 1992;311:562-168.
25. Ragan PM, Wang W, Eisenberg SR. Magnetically induced currents in the canine heart: a finite element study. IEEE Trans Biomed Eng 1995;42:1110-1116.
26. Reilly JP. Safety considerations concerning the minimum threshold for magnetic excitation of the heart. Med Biol Eng Comput 1993;31:651-564.
27. Shellock FG. Magnetic resonance safety update 2002: implants and devices. J Magn Reson Imaging 2002;16:485-496.
28. Kang G, Gandhi OP. Comparison of various safety guidelines for electronic article surveillance devices with pulsed magnetic fields. IEEE Trans Biomed Eng 2003;50:107-113.
29. McNeal DR. Analysis of a model for excitation of myelinated nerve. IEEE Trans Biomed Eng 1985;32:329-337.
30. Carmeliet E. Cardiac ionic currents and acute ischemia: from channels to arrhythmias. Physiol Rev 1999;79:917-1017.
31. Durrer D, van Dam RT, Freud GE, Janse MJ, Meijler FL, Arzbaecher RC. The total excitation of the isolated human heart. Circulation 1972;41:899-910.