Browse > Article
http://dx.doi.org/10.5392/JKCA.2019.19.06.418

Comparative Study of a Multi-Channel Coils of Magnetic Resonance Imaging(MRI) Signal Intensities under Identical Parameters  

Son, Soon-Yong (원광보건대학교 방사선과)
Publication Information
The Journal of the Korea Contents Association / v.19, no.6, 2019 , pp. 418-423 More about this Journal
Abstract
The purpose of this study was to determine how the different number of channels of coils were related in the perceived signal intensity under identical parameters and area. Dedicated knee phantoms were scanned consecutively using both of the 16-channel and 8-channel knee coils. The T1 weighted and T2 weighted sequences were acquired using both coils to compare the signal intensities according to the number of channels. As a result, the 16-channel knee coils outperformed the 8-channel knee coils and the signal intensity was significantly increased in both of the T1 and T2 weighted images with the 16-channel coil. In conclusion, it is considered that better signal intensities and more clinical utility can be provided, when coils with more number of channels are used rather than using the coils with smaller number of channels.
Keywords
MRI Coil; Coil Channel; Element; Signal Intensity;
Citations & Related Records
Times Cited By KSCI : 7  (Citation Analysis)
연도 인용수 순위
1 S. Y. Son, "Analysis of Distances for MRI Scan to Maintain Pptimal Signal Intensity in a Surface Coil," International Journal of Contents, Vol.18 No.10, pp.158-164, 2018.
2 H. S. Lee, D. C. Woo, K. H. Min, Y. K. Kim, H. K. Lee, and B. Y. Choe, "Development of Solenoid RF Coil for Animal Imaging in 3T High Magnetic Field MRI," Journal of the Korean Society of Magnetic Resonance in Medicine, Vol.11, No.1, pp.20-26, 2007.
3 V. P. Grover, J. M. Tognarelli, M. M. Crossey, I. J. Cox, S. D. Taylot-Robinson, and M. J. McPhail, "Magnetic Resonance Imaging: Principles and Techniques: Lessons for Clinicians," Journal of clinical and experimental hepatology, Vol.5, No.3, pp.246-255, 2015.   DOI
4 H. B. Lee, K. W. Choi, and S. Y. Son, "The Optimal Signal Intensity according to Image Scale Reset of MRI," International Journal of Contents, Vol.17 No.12, pp.266-271, 2017.
5 T. W. Redpath, "Signal-to-noise ratio in MRI," The British Journal of Radiology, Vol.71, No.847, pp.704-707, 1998.   DOI
6 T. Nakada, "Clinical application of high and ultra high-field MRI, Brain and Development," Vol.29, No.6, pp.325-335, 2007.   DOI
7 B. J. Soher, B. M. Dale, and E. M. Merkle, "A review of MR physics: 3T versus 1.5 T, Magnetic resonance imaging clinics of North America," Vol.15, No.3, pp.277-290, 2007.   DOI
8 B. Tomanek, Innovative mutually inductively coupled radiofrequency coils for magnetic resonance imaging and spectroscopy, The Henryk Niewodniczanski Institute of Nuclear Physics, 2006.
9 C. M. Collins, Q. X. Yang, J. H. Wang, X. Zhang, H. Liu, S. Michaeli, X. H. Zhu, G. Adriany, J. T. Vaughan, P. Anderson, H. Merkle, K. Ugurbil, M. B. Smith, and W. Chen, "Different excitation and reception distributions with a single-loop transmit-receive surface coil near a head-sized spherical phantom at 300 MHz," Magnetic Resonance in Medicine: An Official Journal of the International Society for Magnetic Resonance in Medicine, Vol.47, No.5, pp.1026-1028, 2002.   DOI
10 S. Y. Park, J. S. Park, W. Jin, K. H. Rhyu, and K. N. Ryu, "Diagnosis of acetabular labral tears: comparison of three-dimensional intermediate-weighted fast spin-echo MR arthrography with two-dimensional MR arthrography at 3.0T," Acta Radiologica, Vol.54, No.1, pp.75-82, 2013.   DOI
11 C. H. Lim and S. J. Bae, "3T MR Spin Echo T1 Weighted Image at Optimization of Flip Angle," Journal of the Korean Society of Radiological Technology, Vol.32, No.2, pp.177-182, 2009.
12 T. S. Kim, J. B. Kim, J. Y. Kim, N. K. Choi, and S. J. Jang, "Signal strength changes of cerebrum in 3.0T magnetic resonance imaging on Spin-echo T1 weighted images according to the Flip Angle," Journal of Korean Society of MR Technology, Vol.17, No.1, pp.179-180, 2007.
13 D. K. Seo, S. R. Na, J. H. Park, K. W. Choi, H. B. Lee, and D. K. Han, "Effectiveness of a silicone device for foot MRI in order to obtain homogeneous fat suppression images," Acta Radiologica, Vol.56, No.4, pp.471-476, 2015.   DOI
14 H. S. Lee, H. Moon, Y. Chang, and K. S. Hong, "The Effect of Coating Material of Copper-wire RF Coil on the Signal-to-Noise Ratio in MR Images," Journal of the Korean Society of Magnetic Resonance in Medicine, Vol.13, No.2, pp.171-176, 2009.
15 K. W. Choi and S. Y. Son, "A research on improving signal to noise ratio for magnetic resonance imaging through increasing filling factor inside surface coil," Journal of the Korea Academia-Industrial cooperation Society, Vol.13, No.11, pp.5299-5304, 2012.   DOI
16 S. Y. Son, "A Study on Indirect Attachment Method of Compensation Materials to Increase Signal Intensity in Magnetic Resonance Imaging," International Journal of Contents, Vol.17, No.7, pp.437-442, 2017.
17 T. J. Lawry, M. W. Weiner, and G. B. Matson, "Computer modeling of surface coil sensitivity," Magnetic resonance in medicine, Vol.16, No.2, pp.294-302, 1990.   DOI
18 R. Buchli, M. Saner, D. Meier, E. B. Boskamp, and P. Boesiger, "Increased rf power absorption in MR imaging due to rf coupling between body coil and surface coil," Magnetic resonance in medicine, Vol.9, No.1, pp.105-112, 1989.   DOI
19 K. R. Minard and R. A. Wind, "Solenoidal microcoil design. Part I: Optimizing RF homogeneity and coil dimensions," Concepts in Magnetic Resonance: An Educational Journal, Vol.13, No.2, pp.128-142, 2001.   DOI
20 W. A. Willinek and H. H. Schild, "Clinical advantages of 3.0 T MRI over 1.5 T," European journal of radiology, Vol.65, No.1, pp.2-14, 2008.   DOI
21 R. Turner, "A target field approach to optimal coil design," Journal of physics D: Applied physics, Vol.19, No.8, p.147, 1986.   DOI
22 L. Haakil, 자기공명 영상과 분광법의 이해 , 계명대학교출판부, 2016.
23 B. M. Dale, M. A. Brown, and R. C. Semelka, MRI: basic principles and applications, John Wiley & Sons, 2015.