MRI-based anatomical model of the human head for specific absorption rate mapping
β Scribed by Nikos Makris; Leonardo Angelone; Seann Tulloch; Scott Sorg; Jonathan Kaiser; David Kennedy; Giorgio Bonmassar
- Publisher
- Springer
- Year
- 2008
- Tongue
- English
- Weight
- 691 KB
- Volume
- 46
- Category
- Article
- ISSN
- 1741-0444
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π SIMILAR VOLUMES
Specific absorption rate (SAR) was measured in models of the human head exposed to hand-held portable radios ("transceivers") transmitting at frequencies in the 800-MHz band. An isotropic implantable electric-field probe was used to measure internal fields induced in the head models, and SARs were d
## Abstract ## Purpose To develop a scannerβindependent dosimeter for measuring the average radio frequency (RF) power deposition and specific absorption rates (SAR) for human MRI exposure. ## Materials and Methods A prototype dosimeter has a transducer with orthogonal conducting loops surroundi
Magnetic fields emitted by electric appliances such as razors, hair dryers, and drills were measured in the frequency domain. Results show the presence of high-frequency components (up to 96 kHz for r u o r s , up to 3.4 kHz for hair dryers, and up to 8.6 kHz for drills) in the harmonic content of t