RF magnetic field penetration, phase shift and power dissipation in biological tissue: Implications for NMR imaging

P. A. Bottomley; E. R. Andrew

doi:10.1088/0031-9155/23/4/006

RF magnetic field penetration, phase shift and power dissipation in biological tissue: Implications for NMR imaging

P. A. Bottomley, E. R. Andrew

Research output: Contribution to journal › Article › peer-review

309 Scopus citations

Abstract

The magnetic field penetration, phase shift and power deposition in planar and cylindrical models of biological tissue exposed to a sinusoidal time-dependent magnetic field have been investigated theoretically over the frequency range 1 to 100 MHz. The results are based on measurements of the relative permittivity and resistivity dispersions of a variety of freshly excised rat tissue at 37 and 25 degrees C, and are analysed in terms of their implications for human body nuclear magnetic resonance (NMR) imaging.

Original language	English (US)
Article number	006
Pages (from-to)	630-643
Number of pages	14
Journal	Physics in medicine and biology
Volume	23
Issue number	4
DOIs	https://doi.org/10.1088/0031-9155/23/4/006
State	Published - 1978
Externally published	Yes

ASJC Scopus subject areas

Radiological and Ultrasound Technology
Radiology Nuclear Medicine and imaging

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10.1088/0031-9155/23/4/006

Cite this

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abstract = "The magnetic field penetration, phase shift and power deposition in planar and cylindrical models of biological tissue exposed to a sinusoidal time-dependent magnetic field have been investigated theoretically over the frequency range 1 to 100 MHz. The results are based on measurements of the relative permittivity and resistivity dispersions of a variety of freshly excised rat tissue at 37 and 25 degrees C, and are analysed in terms of their implications for human body nuclear magnetic resonance (NMR) imaging.",

author = "Bottomley, {P. A.} and Andrew, {E. R.}",

year = "1978",

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AU - Andrew, E. R.

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AB - The magnetic field penetration, phase shift and power deposition in planar and cylindrical models of biological tissue exposed to a sinusoidal time-dependent magnetic field have been investigated theoretically over the frequency range 1 to 100 MHz. The results are based on measurements of the relative permittivity and resistivity dispersions of a variety of freshly excised rat tissue at 37 and 25 degrees C, and are analysed in terms of their implications for human body nuclear magnetic resonance (NMR) imaging.

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RF magnetic field penetration, phase shift and power dissipation in biological tissue: Implications for NMR imaging

Abstract

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