The diagnostic value of thick-slab single-shot turbo spin-echo T2 *-weighted sequence in fetal MRI
10.3969/j.issn.1002-1671.2015.06.028
- VernacularTitle:单层厚块单次激发快速自旋回波重 T2加权序列在胎儿 MRI 中的诊断价值
- Author:
Xianbin MO
;
Ming XIA
;
Ping CAI
;
Mingshan DU
;
Wenjing HOU
;
Kang CHEN
;
Chun YANG
;
Qiandong YAO
;
Xin WANG
- Publication Type:Journal Article
- Keywords:
diagnostic imaging;
fetus;
magnetic resonance imaging
- From:
Journal of Practical Radiology
2015;(6):994-997
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluate the diagnostic value of thick-slab single-shot turbo spin-echo (SSTSE)T2 ?-weighted sequence in magnetic resonance fetography (MRF)for fetal abnormalities.Methods 328 of 1 990 pregnant women with the diagnosis of fetal congenital defects on prenatal ultrasound screening or chromosome examination were randomly selected,and 338 fetuses were ob-tained.These fetuses were scanned by conventional magnetic resonance imaging (MRI)and MRF.The diagnostic results from the two MR methods were compared.Results Six hundred and twenty-four lesions were detected by MRF.The primary diagnosis based on conventional MRI was changed for 14 lesions (2.2%).New findings were identified for 48 fetal lesions (8.4%)and 66 ma-ternal lesions.However,78 fetal lesions could not to be identified by MRF.MRF could increase the diagnostic confidence for fetal lesions with high water content (56.1% of the lesions).Conclusion MRF can yield more precise information for fetal extremities, fluid-filled cavities,pathological hydrops and cystic lesions.As an additional aid to the conventional multi-slice T2-weighted se-quence.
