CAJ | 학술논문

目前普遍认为脊髓圆锥末端位置随着胎龄增加而上升,3个月以后脊髓末端上升速度快于脊柱,脊髓位置相对上移。神经管发育异常可致脊髓圆锥末端下降并被栓系在椎管内产生脊髓栓系综合征,如何确定正常不同孕周胎儿脊髓圆锥末端的范围及变化规律,是评价胎儿脊髓栓系综合征等圆锥末端异常疾病的关键。已有多种方法定位胎儿脊髓圆锥末端,超声作为无创、便捷、可反复观察方法已成为首选,但通过定位脊髓圆锥末端来预测脊髓栓系综合征尚需要更多临床研究和论证。
목전보편인위척수원추말단위치수착태령증가이상승,3개월이후척수말단상승속도쾌우척주,척수위치상대상이。신경관발육이상가치척수원추말단하강병피전계재추관내산생척수전계종합정,여하학정정상불동잉주태인척수원추말단적범위급변화규률,시평개태인척수전계종합정등원추말단이상질병적관건。이유다충방법정위태인척수원추말단,초성작위무창、편첩、가반복관찰방법이성위수선,단통과정위척수원추말단래예측척수전계종합정상수요경다림상연구화론증。
It is currently generally believed that the fetal conus medullaris rises gradually with the gesta-tional age,the fetal conus medullaris rises faster than the spine after three months. Neural tube defects can cause conus medullaris descend,and tied in spinal canal leading to tethered cord syndrome. How to determine the range and change rule of conus medullarisin at different gestational ages of normal pregnancy is the key for diagnosing the abnormal of conus medullaris. There are many ways for positioning the conus medullaris. Ultrasonography has become the first choice for it is noninvasive, convenient and has good repeatability, though more intensive clinical research and demonstration are still needed for predicting tethered cord syn-drome through positioning the conus medullaris.