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Analysis of Distances for MRI Scan to Maintain Pptimal Signal Intensity in a Surface Coil

MRI 검사 시 코일내 최적의 신호강도를 유지할 수 있는 거리의 기준 분석

  • 손순룡 (원광보건대학교 방사선과)
  • Received : 2018.07.11
  • Accepted : 2018.07.25
  • Published : 2018.10.28

Abstract

The purpose of this study is to statistically analyze the signal intensity pattern according distance from the surface coil center and to maintain optimal signal intensity under clinical circumstances where the surface coil centers are not correctly positioned due to various causes. The cylindrical fluid phantom was placed and moved from the coil center in vertical direction with 1 cm increments. The signal intensities were measured and compared. As a result, the signal intensity showed no significant difference within 4 cm and 1 cm from in T1 weighted images while in T2 weighted images the signal intensity was maintained up to 5 cm and lower 3 cm in the upper and lower direction from the coil center. In conclusion, to maintain the optimal signal intensity the target region should be located within the reference distances proposed in this study.

Acknowledgement

Supported by : 원광보건대학교

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