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A Study on Indirect Attachment Method of Compensation Materials to Increase Signal Intensity in Magnetic Resonance Imaging

자기공명영상검사 시 신호강도를 높이기 위한 보상물질의 간접부착 방식에 관한 연구

  • 손순룡 (원광보건대학교 방사선과)
  • Received : 2017.03.20
  • Accepted : 2017.03.31
  • Published : 2017.07.28

Abstract

Previously, studies on compensation material to increase the signal intensity have been conducted which does not affect the reading of images. However, the compensation material has a concern on patient infection as it is attached directly on the skin. Therefore, in this study, we tested an indirect attachment of the compensation material as an alternative method of the direct attachment. The silicon compensation material was fabricated in the form of a cylindrical bar and attached to each element of the 8 channel head coil. Then the signal intensities of the water phantom pre and post application of the silicon were measured. T1 and T2-weighted images were acquired using an 8-channel head coil and a 3.0T superconducting MRI. Signal intensities were measured by using an image measuring program. Paired t-test was used to verify if there were significant differences. The signal intensity before application of the silicon was significantly increased by 3.39% and 2.62% in T1 and T2 weighted images, respectively. Although the indirect attachment method had a limitation to completely replace the existing method, it was considered to be useful in patients with infectious diseases such as diabetic complications since it had a meaningful improvement in signal intensity based on the filling factor increase.

Keywords

MRI Compensator;Silicon;Filling Factor;Signal Intensity;Susceptibility

Acknowledgement

Supported by : 원광보건대학교

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