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Paper Abstract and Keywords
Presentation 2015-02-19 15:05
SAR evaluation for human body with implanted medical devices during MR imaging
Mahito Koizumi, Kazuyuki Saito, Koichi Ito (Chiba Univ.)
Abstract (in Japanese) (See Japanese page) 
(in English) Modern MRI systems employ high-frequency and high-powered radio frequency (RF) pulses. Given this, it is necessary to evaluate the specific absorption rate (SAR) of the irradiated human body. Recently, the materials and shapes of implantable medical devices such as artificial joints or pacemakers have become increasingly diverse. At once, making it more likely that subjects’ implanted medical devices will potentially causing temperature increases in unexpected regions. Therefore, in order to consider the safety of patients with implanted medical devices during MR imaging, it is necessary to comprehend the detailed SAR distribution within the human body. In this study, we evaluated SAR for human body with carotid stent and DBS as one example of medical devices during MR imaging. In these results, SAR value increased around these devices. However, these values were below safety guideline sufficiently.
Keyword (in Japanese) (See Japanese page) 
(in English) Specific Absorption Rate (SAR) / Magnetic Resonance Imaging (MRI) / carotid stent / Deep Brain Stimulation (DBS) / / / /  
Reference Info. ITE Tech. Rep., vol. 39, no. 6, BCT2015-28, pp. 13-16, Feb. 2015.
Paper # BCT2015-28 
Date of Issue 2015-02-12 (BCT) 
ISSN Print edition: ISSN 1342-6893    Online edition: ISSN 2424-1970
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Conference Information
Committee BCT IEEE-BT  
Conference Date 2015-02-19 - 2015-02-20 
Place (in Japanese) (See Japanese page) 
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Paper Information
Registration To BCT 
Conference Code 2015-02-BCT-BT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) SAR evaluation for human body with implanted medical devices during MR imaging 
Sub Title (in English)  
Keyword(1) Specific Absorption Rate (SAR)  
Keyword(2) Magnetic Resonance Imaging (MRI)  
Keyword(3) carotid stent  
Keyword(4) Deep Brain Stimulation (DBS)  
1st Author's Name Mahito Koizumi  
1st Author's Affiliation Chiba University (Chiba Univ.)
2nd Author's Name Kazuyuki Saito  
2nd Author's Affiliation Chiba University (Chiba Univ.)
3rd Author's Name Koichi Ito  
3rd Author's Affiliation Chiba University (Chiba Univ.)
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Speaker Author-1 
Date Time 2015-02-19 15:05:00 
Presentation Time 25 minutes 
Registration for BCT 
Paper # BCT2015-28 
Volume (vol) vol.39 
Number (no) no.6 
Page pp.13-16 
Date of Issue 2015-02-12 (BCT) 

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