© The Institution of Engineering and Technology
The radio frequency coils in magnetic resonance imaging (MRI) systems induce scattered electric fields in the implanted medical lead and result in tissue heating. A novel structure of the medical lead has been designed to reduce the scattered field. Proposed metal nails are placed along the medical lead. The scattered electric field is calculated near the medical lead tip at 64 MHz (1.5 T MRI). By installing this design on the conventional lead, a significant decrease in the scattered electric field at the tip of the lead is observed.
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S.M. Park ,
R. Kamondetdacha ,
J.A. Nyenhuis
.
Calculation of MRI-induced heating of an implanted medical lead wire with an electric field transfer function.
J. Magn. Res. Imag.
,
5 ,
1278 -
1285
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7)
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W. Kainz
.
(2006)
SAR intercomparison protocol for 1.5 T MR systems draft US.
-
8)
-
E. Mattei ,
M. Triventi ,
G. Calcagnini ,
F. Censi ,
W. Kainz ,
G. Mendoza ,
H.I. Bassen ,
P. Bartolini
.
Complexity of MRI induced heating on metallic leads: experimental measurements of 374 configurations.
Biomed. Eng. Online
-
9)
-
C.J. Yeung ,
R.C. Susil ,
E. Atalar
.
RF safety of wires in interventional MRI: using a safety index.
Magn. Reson. Med.
,
187 -
193
-
10)
-
E.T. Martin ,
J.A. Coman ,
F.G. Shellock ,
C.C. Pulling ,
R. Fair ,
K. Jenkins
.
Magnetic resonance imaging and cardiac pacemaker safety at 1.5-tesla.
J. Am. Coll. Cardiol.
,
1 -
10
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Correspondence
This article has following corresponding article(s):
in brief
Innovative design of implanted medical lead to reduce MRI-induced scattered electric fields