Reduction of the radiofrequency heating of metallic devices using a dual-drive birdcage coil

Magnetic Resonance in Medicine

Volumn 69, Issue 3, 2013, Pages 845-852

  Eryaman, Yigitcan ^a   Turk, Esra Abaci ^a   Oto, Cagdas ^b   Algin, Oktay ^c   Atalar, Ergin ^a  

^a BILKENT UNIVERSITY   (Turkey)

^b ANKARA UNIVERSITY   (Turkey)

^c ATATURK TRAINING AND RESEARCH HOSPITAL   (Turkey)

Author keywords

dual drive birdcage coil; implant heating; RF safety; transmit arrays

Indexed keywords

ECONOMIC AND SOCIAL EFFECTS; ELECTRIC FIELDS; MAGNETIC RESONANCE IMAGING; MEAN SQUARE ERROR;

DUAL DRIVES; ELECTRIC FIELD DISTRIBUTIONS; EXCITATION CURRENTS; RADIO FREQUENCY HEATING; RF SAFETIES; ROOT MEAN SQUARE ERRORS; SPECIFIC ABSORPTION RATE; TRANSMIT ARRAYS;

HEATING;

ANIMAL EXPERIMENT; ARTICLE; DUAL DRIVE BIRDCAGE COIL; ELECTRIC FIELD; EXCITATION; EXPERIMENTAL PIG; HEATING; METAL IMPLANTATION; NONHUMAN; NUCLEAR MAGNETIC RESONANCE IMAGING; PATIENT SAFETY; POLARIZATION; RADIATION EQUIPMENT; RADIATION MONITORING; RADIATION SAFETY; RADIOFREQUENCY; TEMPERATURE MEASUREMENT;

EID: 84874385333     PISSN: 07403194     EISSN: 15222594     Source Type: Journal    
DOI: 10.1002/mrm.24316     Document Type: Article

References (12)

1. Nitz WR, Oppelt A, Renz W, Manke C, Lenhart M, Link J,. On the heating of linear conductive structures as guide wires and catheters in interventional MRI. J Magn Reson Imaging 2001; 13: 105-114.
2. Yeung CJ, Susil RC, Atalar E,. RF safety of wires in interventional MRI: using a safety index. Magn Reson Med 2002; 47: 187-193.
3. Gray RW, Bibens WT, Shellock FG,. Simple design changes to wires to substantially reduce MRI-induced heating at 1.5 T: implications for implanted leads. Magn Reson Imaging 2005; 23: 887-891.
4. Eryaman Y, Akin B, Atalar E,. Reduction of implant RF heating through modification of electric field. Magn Reson Med 2011; 65: 1305-1313.
5. Nordbeck P, Weiss I, Ehses P, Ritter O, Warmuth M, Fidler F, Herold V, Jakob PM, Ladd ME, Quick HH, Bauer WR,. Measuring RF-induced currents inside implants: impact of device configuration on MRI safety of cardiac pacemaker leads. Magn Reson Med 2009; 61: 570-578.
6. van den Bosch MR, Moerland MA, Lagendijk JJW, Bartels LW, van den Berg CAT,. New method to monitor RF safety in MRI-guided interventions based on RF induced image artefacts. Med Phys 2010; 37: 814-821.
7. Etezadi-Amoli M, Stang P, Zanchi MG, Pauly JM, Scott GC, Kerr AB,. Controlling Induced Currents in Guidewires Using Parallel Transmit. In Proceedings of the 18th Annual Meeting of ISMRM, Stockholm, Sweden 2010. p. 777.
8. Akin B, Eryaman Y, Atalar E,. A method for phantom conductivity and permittivity measurements. In Proceedings of the 26th Annual Meeting of ESMRMB, Antalya, Turkey 2009, p. 518.
9. Nehrke K,. On the steady state properties of actual flip angle imaging (AFI). Magn Reson Med 2009; 61: 84-92
10. Ladd ME, Quick HH,. Reduction of resonant RF heating in intravascular catheters using coaxial chokes. Magn Reson Med 2000; 43: 615-619.
11. Eryaman Y, Demir T, Atalar E,. Reduction of RF heating of metallic devices using transmit arrays. In Proceedings of the 18th Annual Meeting of ISMRM, Stockholm, Sweden 2010. p. 3883.
12. Lee J, Gebhardt M, Wald LL, Adalsteinsson E,. Local SAR in parallel transmission pulse design. Magn Reson Med 2012; 67: 1566-1578.