Journal of the Korean Society of Radiology (한국방사선학회논문지)

The Korean Society of Radiology (한국방사선학회)
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Assesment Of Image Quality in the Abdominal Magnetic Resonance Imaging: Comparison with 1.5 T and 3.0 T

복부 자기공명영상에서 영상의 질 평가: 1.5 T 와 3.0 T 비교

  • Goo, Eun-Hoe (Department of Radiological Science, Cheongju University)
  • 구은회 (청주대학교 방사선학과)
  • Received : 2016.07.21
  • Accepted : 2016.08.31
  • Published : 2016.08.31
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Abstract

This study conducted an analysis to compare the differences in the properties of the magnetic field and the generation of artifacts because of the difference in the magnetic field between 1.5 T equipment and 3.0 T equipment, centering around four types of pulse sequences, mainly applied to the abdominal Magnetic Resonance Imaging (MRI). With data on 500 persons transmitted to the PACS, this study analyzed the SNR value, quantitatively and carried out a qualitative evaluation, dividing MSA, CSA, and DA into three steps. As a result of the quantitative evaluation, the SNR value was significantly higher in the 1.5 T equipment; however, there was a factor deteriorating the image quality, too, as artifacts were generated in the images. The 1.5 T equipment generated fewer artifacts than the 3.0 T equipment did, so it could compensate the image quality for 3.0 T. In conclusion, based on these findings, this study could understand the differences in the properties of the magnetic field and the generation of artifacts occurring because of the difference in the magnetic field and could provide a measure for them. This study would be guidelines for MRI users who directly examine the patients in abdominal MRI using the two types of equipment in the clinical setting in the future.

본 연구의 목적은 복부 자기공명영상에서 주로 적용되고 있는 4 종류의 펄스시퀀스를 중심으로 1.5 T 와 3.0 T 기기의 자기장의 차이로 나타나는 자기장의 속성 및 인공물 발생 차이를 비교하기 위해 분석을 하였다. PACS network로 전송된 총 500 명의 데이터를 정량적으로 SNR 값을 분석하였고, MSA, CSA, DA을 3 단계로 구분하여 정성적 평가를 하였다. 정량적 평가에서 SNR 값은 1.5 T 값 보다 의미 있는 결과로 높은 값을 얻었지만(p<0.05), 영상의 인공물이 발생하여 영상의 질을 저하시키는 요인도 있었다(p<0.05). 1.5 T는 3.0 T 보다 인공물 발생이 적어 3.0 T 만큼에 영상의 질을 보상 할 수가 있었다(0.05). 결론적으로, 이러한 결과를 토대로 자기장의 차이에 따라 발생되는 자기장의 속성 및 인공물 발생 차이를 파악 할 수 있었으며 이에 따른 대처방안을 제공할 수 있었다. 향후 임상현장에서 두 기기를 이용하여 복부 자기공명영상을 검사 할 때 환자를 직접 검사하는 MRI 사용자에게 가이드라인이 될 것이다.

Keywords

References

  1. C. Zhu, H. Haraldsson, F. Faraji, C. Owens, W. Gasper, S. Ahn, J. Liu, G. Laub, M. D. Hope, D. Saloner, “Isotropic 3D black blood MRI of abdominal aortic aneurysm wall and intraluminal thrombus,” Magn Reson Imaging, Vol. 34, No. 1, pp. 18-25, 2016. https://doi.org/10.1016/j.mri.2015.10.002
  2. J. D. Collins, “Unsuspected Herniated Lung Obstructing the Right Internal Jugular Vein and Internal Carotid Artery in a Patient with Thoracic Outlet Syndrome: MRI/MRA and MRV,” J Natl Med Association, Vol. 108, No. 2, pp. 106-112, 2016. https://doi.org/10.1016/j.jnma.2016.03.001
  3. J. Guo, N. Chen, R. Li, Q. Wu, H. Chen, Q. Gong, L. He, “Regional homogeneity abnormalities in patients with transient ischaemic attack: a resting-state fMRI study,” Clin Neurophysiol, Vol. 125, No. 3, pp. 520-525, 2014. https://doi.org/10.1016/j.clinph.2013.08.010
  4. J. A. Goncalves Neto, E. Altun, M. Elazzazi, G. D. Vaidean, M. Chaney, R. C. Semelka, “Enhancement of abdominal organs on hepatic arterial phase: quantitative comparison between 1.5-and 3.0-T magnetic resonance imaging,” Magn Reson Imaging, Vol. 28, No. 1, pp. 47-55, 2010. https://doi.org/10.1016/j.mri.2009.05.041
  5. H. Kataoka, T. Kiriyama, T. Taoka, N. Oba, M. Takewa, N Eura, R. Syobatake, Y. Kobayashi, M. Kumazawa, T. Izumi, Y. Furiya, N. Aoyama, N. Kichikawa, "Comparison of brain3.0-T with 1.5-TMRI in patients with multiple sclerosis: a 6-month follow-up study," Clin Neurol Neurosurg, Vol. 121, doi: 10.1016/j.clineuro.2014.03.018, pp. 55-58, 2014.
  6. G. B Joseph, C. E. McCulloch, M. C. Nevitt, U. Heilmeier, L. Nardo, J. A Lynch, F. Liu, T. Baum, T. M. Link, “A reference database of cartilage 3T MRI T2 values in knees without diagnostic evidence of cartilage degeneration: data from the osteoarthritis initiative,” Osteoarthritis Cartilage, Vol. 23, No. 6., pp. 897-905, 2015. https://doi.org/10.1016/j.joca.2015.02.006
  7. M. Ramalho, I. Hithaya, M. AlObaidy, J. Kalubowil a, Y. H. Jeon, S. Manikkavasakar, R. C. Semelka, “MRI Evaluation of cooperative and non-cooperative patients with non-traumatic acute abdominal pain-pre liminary observations,” Clin Imaging, Vol. 40, No. 4, pp. 707-713, 2016. https://doi.org/10.1016/j.clinimag.2016.02.008
  8. J. Y. Choi, M. J. Kim, Y. E. Chung, J. Y. Kim, A. C. Jones, J. de Becker, M. van Cauteren, “ Abdominal applications of 3.0-T MR imaging: comparative review versus a 1.5-Tsystem,” Radiographics, Vol. 28, No. 4, pp. 1-29, 2008. https://doi.org/10.1148/rg.281075213
  9. J. Y. Jung, Y. C. Yoon, H. R. Kim, B. K. Choe, J. H. Wang, J. Y. Jung, “Knee derangements: comparis on of isotropic 3D fast spin-echo, isotropic 3D balanced fast field-echo, and conventional 2D fast spin-echo MR imaging,” Radiology, Vol. 268, No. 3, pp. 802-813, 2013. https://doi.org/10.1148/radiol.13121990
  10. M. M Barth, M. P. Smith, I. Pedrosa, R. E. Lenkinski, N. M. Rofsky, “Body MR imaging at 3.0T: understanding the opportunities and challenges,” Radiographics, Vol. 27, No. 5, pp. 1445-1462, 2007. https://doi.org/10.1148/rg.275065204
  11. K. J. Chang, I. R. Kamel, K. J. Macura, D. A. Bluemke, “3.0-T MR imaging of the abdomen: comparison with 1.5T,” Radiographics, Vol. 28, No. 7, pp. 1983-1998, 2008. https://doi.org/10.1148/rg.287075154
  12. Y. Ishimori, M. Monma, Y. Kohno, “Artifact reduction of susceptibility-weighted imaging using a short-echo phase mask,” Acta Radiology, Vol. 50, No. 9, pp. 1027-1034, 2009. https://doi.org/10.3109/02841850903147061
  13. S. J. Bawden, M. C. Stephenson, E. Ciampi, K. Hunter, L. Marciani, I. A. Macdonald, G. P. Aithal, P. G. Morris, P. A. Gowland, “Investigating the effects of an oral fructose challenge on hepatic ATP reserves in healthy volunteers: A (31)P MRS study,” ClinNutr., Vol. 35, No. 3, pp. 645-649, 2015.
  14. N. A. Husni, M. T. Islam, Mohammad R. I. Faruque, and N. Misran, "Effects of Electromagnetic Absorption to-Wards human Head due to Variation of Its Dielectric properties at 900, 1800MHz with Different Antenna Substrates," Progress In Electromagnetics Research, Vol. 138, No. 1, 367-388, 2013. https://doi.org/10.2528/PIER13021908
  15. A. Stadlbauer, W. van der Riet, G. Crelier, E. Salo monowitz, "Accelerated time-resolved three-dimensional MR velocity mapping of blood flow patterns in the aorta using SENSE and k-tBLAST," Eur J Radiol., Vol. 75, No. 1, pp. e15-21, 2010. https://doi.org/10.1016/j.ejrad.2009.06.009

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