摘要
应用腹部超声及阴道超声对６８例孕妇的宫颈进行监测，比较其成功率及准确性。又应用阴道超声对１１３例正常妊娠不同时期宫颈进行监测了解其变化。结果：阴道超声宫颈显像成功率显著高于腹部超声（分别为１００％与８３．８２％，Ｐ＜０．００５），阴道超声宫颈长度值（３０．７１５８ｍｍ）显著短于腹部超声值（３５．０５２６ｍｍ），（Ｐ＜０．００１），正常妊娠宫颈长度阴道超声值为：早孕期３０．２２２２ｍｍ；中孕期３２．２５００ｍｍ；晚孕期３０．０４１９ｍｍ；足月孕未临产者２５．８５７５ｍｍ，显著短于早、中、晚孕期。由此表明，阴道超声监测孕期宫颈不仅显像成功率高于腹部超声，且其准确性亦优于腹部超声；正常妊娠孕３７周前宫颈长度无明显变化，而足月妊娠后宫颈长度显著缩短。
The objective of this study was to evaluate the accuracy of the measurement of the cervix by comparing transvaginal sonography (TVS) with transabdominal sonography (TAS) and to assess TVS measurement of the cervix in pregnancy. The cervix was measured in the first, second, third trimesters and at term by TVS in 131 normal singleton pregnancies and by TAS in normal pregnant women. The results showed that TVS was better in providing successful rate and accurate identification of uterine cervical length, compared with TAS. The cervical lengths in the first, second, third trimesters and at term were 30.22mm,32.25mm,3004mm and 25.86mm respectively. The results suggest that TVS be superior to TAS in cervical measurement and that in normal pregnancy, the cervical length does not change significantly until the time when cervical length shortening begins at term.
出处
《华西医科大学学报》
CSCD
1999年第2期208-209,213,共3页
Journal of West China University of Medical Sciences
