Li You, Zhang Shu-Tong, Yu Meng-Qin
Department of Radiology,the Central Hospital of Wuhan,Tongji Medical College, Huazhong University of Science and Technology,Wuhan 430014,China.
Department of Radiology,Tongji Hospital,Tongji Medical College,Huazhong University of Science and Technology,Wuhan 430030,China.
Zhongguo Yi Xue Ke Xue Yuan Xue Bao. 2021 Oct;43(5):755-760. doi: 10.3881/j.issn.1000-503X.13973.
Objective To evaluate the application of two-dimensional magnetization-prepared true fast imaging with steady-state precession(2D-MP-TrueFISP)sequence in brain tumor enhancement.Methods In this study,60 cases of brain tumor patients who underwent enhanced magnetic resonance imaging of brain were scanned with 2D-MP-TrueFISP/two-dimensional spoiled gradient-recalled echo(2D-SPGR)before and after enhancement.The scores of lesions on the images of 2D-MP-TrueFISP/2D-SPGR were compared.At the same level of 2D-SPGE and 2D-MP-TrueFISP,the signal intensities(SIs)of lesions,white matter,and cerebrospinal fluid were measured before and after enhancement,and the contrast ratios(CRs)of lesions were calculated.The CRs before and after 2D-SPGR/2D-MP-TrueFISP enhancement and those between 2D-SPGR and 2D-MP-TrueFISP after enhancement were compared.Results The scores of lesions after 2D-MP-TrueFISP/2D-SPGR T1WI enhancement were 9.0(9.0,9.0)and 7.0(6.0,7.0),respectively,with significant difference(=-6.86,=0.00).CRs showed significant difference before and after enhancement with 2D-SPGR and 2D-MP-TrueFISP(all <0.01).The CRs of lesion compared with white matter and cerebrospinal fluid(1.58±0.46 and 8.50±2.47,respectively)after 2D-MP-TrueFISP enhancement were significantly higher than those[0.57±0.29(=-17.38,=0.00)and 2.64±0.85(=-19.71,=0.00),respectively]after 2D-SPGR enhancement.Conclusion Compared with 2D-SPGR,2D-MP-TrueFISP demonstrated improved enhancement and uniformity as well as clear boundary and display of edema around the lesion.
