Share：
Share this content in WeChat
X
[Chinese][PDF]97378
• Clinical Article •
Study on metal artifacts reduction by review of MAVRIC-SL sequence after internal fixation of fracture
ZHU Jingyi  CHANG Jian  ZHANG Zitian  LI Songbai 

Cite this article as: Zhu JY, Chang J, Zhang ZT, et al. Study on metal artifacts reduction by review of MAVRIC-SL sequence after internal fixation of fracture. Chin J Magn Reson Imaging, 2020, 11(4): 296-299. DOI:10.12015/issn.1674-8034.2020.04.011.


[Abstract] Objective: Investigate the effect of metal artifact reduction multi acquisition with variable resonance image combination slab selectivity (MAVIRC-SL) sequence on MRI of patients with metal implants after fracture surgery, in order to evaluate its clinical application value.Materials and Methods: Thirty-two patients with metal implants after fracture were recruited. The conventional sequences and MAVRIC-SL were scanned. The degree of artifact and its influence on the diagnosis of surrounding structure, the effect of fat suppression and the diagnostic confidence were compared and analyzed.Results: Compared with the conventional sequences, MAVRIC-SL had smaller metal artifacts and the quality of diagnosis is less damaged [conventional sequences: 5(4, 5); MAVRIC-SL: 2(2, 3); P<0.01]; MAVIRC-SL could achieve better fat suppression effect [conventional sequence: 2(1, 2); MAVRIC-SL: 2(2, 3); P<0.01]; MAVRIC-SL has higher diagnostic confidence [reviewer 1∶3(3, 4); reviewer 2∶3(2.25, 4); κ=0.79].Conclusions: MAVRIC-SL can effectively reduce metal artifacts and obtain better fat suppression images. It also has higher diagnostic confidence. MAVRIC-SL is more helpful for the diagnosis of bone and joint lesions after internal fixation.
[Keywords] fracture；internal fixation；complication；metal artifact；magnetic resonance imaging；MAVRIC-SL

ZHU Jingyi Department of Radiology, the First Hospital of China Medical University, Shenyang 110001, China

CHANG Jian Department of Radiology, the First Hospital of China Medical University, Shenyang 110001, China

ZHANG Zitian Department of Radiology, the First Hospital of China Medical University, Shenyang 110001, China

LI Songbai* Department of Radiology, the First Hospital of China Medical University, Shenyang 110001, China

*Correspondence to: Li SB, E-mail: songbaili001@163.com

Conflicts of interest   None.

Received  2019-12-09
Accepted  2020-02-18
DOI: 10.12015/issn.1674-8034.2020.04.011
Cite this article as: Zhu JY, Chang J, Zhang ZT, et al. Study on metal artifacts reduction by review of MAVRIC-SL sequence after internal fixation of fracture. Chin J Magn Reson Imaging, 2020, 11(4): 296-299. DOI:10.12015/issn.1674-8034.2020.04.011.

[1]
张洪瑞．骨折内固定术适应证及固定方法选择应用分析．中国实用医药, 2017, 12(3): 73-74.
[2]
曾炳芳，罗从风．重视骨折并发症的处理．中华创伤骨科杂志, 2006, 8(7): 601-602.
[3]
Choi SJ, Koch KM, Hargreaves BA, et al. Metal artifact reduction with MAVRIC SL at 3-T MRI in patients with hip arthroplasty. Am J Roentgenol, 2015, 204(1): 140-147.
[4]
中华医学会放射学分会质量管理与安全管理学组，中华医学会放射学分会磁共振成像学组.磁共振成像安全管理中国专家共识．中华放射学杂志, 2017, 51(10): 725-731.
[5]
Jungmann PM, Agten CA, Pfirrmann CW, et al. Advances in MRI around metal. J Magn Reson Imaging, 2017, 46(4): 972-991.
[6]
Ariyanayagam T, Malcolm P, Toms A. Advances in metal artifact reduction techniques for periprosthetic soft tissue imaging. Semin Musculoskelet Radiol, 2015, 19(4): 328-334.
[7]
Koch KM, Brau AC, Chen W, et al. Imaging near metal with a MAVRIC-SEMAC hybrid. Magn Reson Med, 2011, 65(1): 71-82.
[8]
Koch KM, Lorbiecki JE, Hinks RS, et al. A multispectral three-dimensional acquisition technique for imaging near metal implants. Magn Reson Med, 2010, 61(2): 381-390.
[9]
Lu W, Pauly KB, Gold GE, et al. SEMAC: Slice encoding for metal artifact correction in MRI. Magn Reson Med, 2010, 62(1): 66-76.
[10]
杨仁杰，查云飞，范阳，等. MAVRIC-SL技术抑制颈椎前路术后STIR图像上金属伪影的可行性．放射学实践, 2019, 34(4): 463-467.
[11]
谭磊，周方，张志山，等．非感染性四肢长骨骨折不愈合的原因分析与治疗．中华创伤骨科杂志, 2013, 15(7): 592-596.
[12]
殷耀斌，张力丹，腾星，等．骨折愈合早期磁共振成像的实验研究．中华创伤骨科杂志, 2010, 12(9): 864-868.
[13]
Gutierrez LB, Do BH, Gold GE, et al. MR imaging near metallic implants using MAVRIC SL. Acad Radiol, 2015, 22(3): 370-379.
[14]
Liebl H, Heilmeier U, Lee S, et al. In vitro assessment of knee MRI in the presence of metal implants comparing MAVRIC-SL and conventional fast spin echo sequences at 1.5 and 3.0 T field strength. J Magn Reson Imaging, 2015, 41(5): 1291-1299.

PREV Research on IVIM-DWI technique in endocrine treatment effect of prostate cancer
NEXT Analysis of correlation between FVH-DWI matching and prognosis in patients with ischemic stroke caused by middle cerebral artery occlusion
  


LINK


Tel & Fax: +8610-67113815    E-mail: editor@cjmri.cn