脐带绕颈：病例报告及文献综述。
Umbilical cord coiling: case report and review of literature.
作者信息
Diwakar Rajendra Kumar, Naik Meena M, Jindal Monika M
机构信息
Department of Radiodiagnosis, C.C.M. Medical College & Hospital, Durg, India.
Department of Gynaecology & Obstetrics, C.C.M. Medical College & Hospital, Durg, India.
出版信息
BJR Case Rep. 2016 Jul 22;3(1):20150152. doi: 10.1259/bjrcr.20150152. eCollection 2017.
Sonographic evaluation of the umbilical cord coiling can be performed during routine foetal anatomic survey in the second trimester of pregnancy. Umbilical coiling index can be determined by dividing 1 by the intercoil distance in centimetres. Umbilical coiling index has been reported to be around 0.21 + 0.07 (standard deviation) coils per centimetre. Abnormal coiling in its two forms, hypercoiling and hypocoiling, have been reported to be more frequent in gestational diabetes and pre-eclampsia.
在妊娠中期进行常规胎儿解剖学检查时，可对脐带螺旋进行超声评估。脐带螺旋指数可通过将1除以以厘米为单位的螺旋间距来确定。据报道，脐带螺旋指数约为每厘米0.21±0.07（标准差）个螺旋。据报道，两种异常螺旋形式，即过度螺旋和螺旋不足，在妊娠期糖尿病和先兆子痫中更为常见。
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