孕生通--胎儿医学计算器

膈疝肺头比 LHR

孕周周

最大径法

前后径法

描记法

1.	Peralta CF, et al. Assessment of lung area in normal fetuses at 12–32 weeks. Ultrasound Obstet Gynecol. 2005
2.	Alfaraj MA, et al. Congenital diaphragmatic hernia: lung-to-head ratio and lung volume for prediction of outcome. AJOG 2011.
3.	Adzick NS,et al. Management of congenital lung lesions. Sem Pediatr Surg 2003.3. Jani JC, et al. Lung-to-head ratio: a need to unify the technique.Ultrasound Obstet Gynecol 2012.