Gross B H, Filly R A, Harter L P
J Ultrasound Med. 1982 Sep;1(7):299-300. doi: 10.7863/jum.1982.1.7.299.
It has been demonstrated by autopsy and by ultrasonography that the fetal left hepatic lobe is proportionately larger than that in the adult, probably because of increased supply of oxygenated blood from the umbilical vein. Intrauterine growth retardation (IUGR) is associated with impairment of the fetal blood supply, and might affect the left lobe disproportionately. The authors evaluated the relative size of the lateral segment of the fetal left lobe (L) compared with the remainder of the liver (R) in 88 obstetrical sonograms from 53 patients with IUGR. There was no statistically significant difference in the mean ratio of L/R between normal and IUGR fetuses. There was also no evidence of decreasing L/R in IUGR fetuses with serial examinations. The L/R ratio does not discriminate between normal fetuses and those with IUGR.
尸检和超声检查已证实，胎儿左肝叶相对成人大，这可能是由于脐静脉供应的氧合血增加所致。宫内生长受限（IUGR）与胎儿血供受损有关，可能对左叶产生不成比例的影响。作者在53例IUGR患者的88份产科超声检查中评估了胎儿左叶外侧段（L）与肝脏其余部分（R）的相对大小。正常胎儿与IUGR胎儿的L/R平均比值无统计学显著差异。连续检查也没有证据表明IUGR胎儿的L/R比值下降。L/R比值无法区分正常胎儿和IUGR胎儿。
