INTERACTION OF RF FIELD WITH DIFFERENT MATERIALS AND ITS EFFECT ON RF NON-HOMOGENEITY

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OGHABIAN M.A.; RIYAHI ALAM N.; MEHDIPOUR S.

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Journal Paper

Paper Information

Journal: Iranian Journal of Basic Medical Sciences Year:2003 | Volume:6 | Issue:3 (19) Page(s): 237-242

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Information Journal Paper

Title

INTERACTION OF RF FIELD WITH DIFFERENT MATERIALS AND ITS EFFECT ON RF NON-HOMOGENEITY

Author(s)

OGHABIAN M.A. | RIYAHI ALAM N. | MEHDIPOUR S. | Issue Writer Certificate

Keywords

MRIQ3

RF HOMOGENEITYQ4

IMAGE UNIFORMITYQ4

INTERACTIONQ4

Abstract

RF receive and transmit non-homogeneity is one of the most effective causes of image non-uniformity in MRI images and is considered as an important source of error in quantitative studies. Part of this non-homogeneity is a characteristic of RF coils and part of it, is due to the INTERACTION of RF field with the body being imaged. In this study, RF field non-homogeneity of a volume head coil is measured in human brain (In vivo) as well as in water and oil phantoms, using a method which was proposed by this group formerly. Comparing the results shows that RF non-homogeneity in water phantom is more than its value in oil phantom. It was also shown that it was even more than its value in human brain In vivo conditions. Non uniformity pattern shows that in both In vivo and water phantom cases, standing wave effect is dominant under our experimental conditions which may cause over-estimating in real magnitudes of Rf non-homogeneity and imaging effective parameters, such that, should has been considered in designing of MRI related phantoms.

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APA: Copy

OGHABIAN, M.A., RIYAHI ALAM, N., & MEHDIPOUR, S.. (2003). INTERACTION OF RF FIELD WITH DIFFERENT MATERIALS AND ITS EFFECT ON RF NON-HOMOGENEITY. IRANIAN JOURNAL OF BASIC MEDICAL SCIENCES, 6(3 (19)), 237-242. SID. https://sid.ir/paper/52383/en

Vancouver: Copy

OGHABIAN M.A., RIYAHI ALAM N., MEHDIPOUR S.. INTERACTION OF RF FIELD WITH DIFFERENT MATERIALS AND ITS EFFECT ON RF NON-HOMOGENEITY. IRANIAN JOURNAL OF BASIC MEDICAL SCIENCES[Internet]. 2003;6(3 (19)):237-242. Available from: https://sid.ir/paper/52383/en

IEEE: Copy

M.A. OGHABIAN, N. RIYAHI ALAM, and S. MEHDIPOUR, “INTERACTION OF RF FIELD WITH DIFFERENT MATERIALS AND ITS EFFECT ON RF NON-HOMOGENEITY,” IRANIAN JOURNAL OF BASIC MEDICAL SCIENCES, vol. 6, no. 3 (19), pp. 237–242, 2003, [Online]. Available: https://sid.ir/paper/52383/en

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