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Comparison of Multi-Echo Dixon Methods with Volume Interpolated Breath-Hold Gradient Echo Magnetic Resonance Imaging in Fat-Signal Fraction Quantification of Paravertebral Muscle

Authors
 Yeon Hwa Yoo  ;  Hak Sun Kim  ;  Young Han Lee  ;  Choon Sik Yoon  ;  Mun Young Paek  ;  MS  ;  Hanna Yoo  ;  Stephan Kannengiesser  ;  Tae Sub Chung  ;  Ho Taek Song  ;  Jin Suck Suh  ;  Sungjun Kim 
Citation
 KOREAN JOURNAL OF RADIOLOGY, Vol.16(5) : 1086-1095, 2015 
Journal Title
KOREAN JOURNAL OF RADIOLOGY
ISSN
 1229-6929 
Issue Date
2015
MeSH
Adult ; Aged ; Aged, 80 and over ; Female ; Humans ; Image Processing, Computer-Assisted ; Low Back Pain/diagnostic imaging* ; Magnetic Resonance Imaging/instrumentation ; Magnetic Resonance Imaging/methods* ; Male ; Middle Aged ; Muscles/diagnostic imaging ; Radiography ; Spinal Cord
Keywords
Dixon ; Fat-signal fraction ; Magnetic resonance imaging ; Muscle ; Spine
Abstract
OBJECTIVE: To assess whether multi-echo Dixon magnetic resonance (MR) imaging with simultaneous T2* estimation and correction yields more accurate fat-signal fraction (FF) measurement of the lumbar paravertebral muscles, in comparison with non-T2*-corrected two-echo Dixon or T2*-corrected three-echo Dixon, using the FF measurements from single-voxel MR spectroscopy as the reference standard.
MATERIALS AND METHODS: Sixty patients with low back pain underwent MR imaging with a 1.5T scanner. FF mapping images automatically obtained using T2*-corrected Dixon technique with two (non-T2*-corrected), three, and six echoes, were compared with images from single-voxel MR spectroscopy at the paravertebral muscles on levels L4 through L5. FFs were measured directly by two radiologists, who independently drew the region of interest on the mapping images from the three sequences.
RESULTS: A total of 117 spectroscopic measurements were performed either bilaterally (57 of 60 subjects) or unilaterally (3 of 60 subjects). The mean spectroscopic FF was 14.3 ± 11.7% (range, 1.9-63.7%). Interobserver agreement was excellent between the two radiologists. Lin's concordance correlation between the spectroscopic findings and all the imaging-based FFs were statistically significant (p < 0.001). FFs obtained from the T2*-corrected six-echo Dixon sequences showed a significantly better concordance with the spectroscopic data, with its concordance correlation coefficient being 0.99 and 0.98 (p < 0.001), as compared with two- or three-echo methods.
CONCLUSION: T2*-corrected six-echo Dixon sequence would be a better option than two- or three-echo methods for noninvasive quantification of lumbar muscle fat quantification.
Files in This Item:
T201503849.pdf Download
DOI
10.3348/kjr.2015.16.5.1086
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Orthopedic Surgery (정형외과학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Radiology (영상의학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Yonsei Biomedical Research Center (연세의생명연구원) > 1. Journal Papers
Yonsei Authors
Kim, Sungjun(김성준) ORCID logo https://orcid.org/0000-0002-7876-7901
Kim, Hak Sun(김학선) ORCID logo https://orcid.org/0000-0002-8330-4688
Suh, Jin Suck(서진석) ORCID logo https://orcid.org/0000-0001-9455-9240
Song, Ho Taek(송호택) ORCID logo https://orcid.org/0000-0002-6655-2575
Yoo, Yeon Hwa(유연화)
Yoo, Han Na(유한나)
Yoon, Choon Sik(윤춘식) ORCID logo https://orcid.org/0000-0003-2010-6710
Lee, Young Han(이영한) ORCID logo https://orcid.org/0000-0002-5602-391X
Chung, Tae Sub(정태섭)
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/141379
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