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. 1987 May;156(5):1069-74.
doi: 10.1016/0002-9378(87)90112-8.

Prenatal sonographic assessment of the fetal thorax: normal values

U Chitkara, J Rosenberg, F A Chervenak, G S Berkowitz, R Levine, R M Fagerstrom, B Walker, R L Berkowitz

Prenatal sonographic assessment of the fetal thorax: normal values

U Chitkara et al. Am J Obstet Gynecol. 1987 May.

Abstract

Fetal thoracic circumference and thoracic length measurements were obtained by ultrasonographic examination on 576 women between 16 and 40 weeks gestation. Nomograms for thoracic circumference and thoracic length with respect to gestational age were developed. Growth of both thoracic parameters was observed to be linear throughout gestation. In normal pregnancy the ratios of thoracic circumference to abdominal circumference and thoracic length to humerus length remained virtually constant at 0.89 and 0.93, respectively.

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