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Ultrasonographic measurement of thoracic diameters of the early gestating fetus
Author(s) -
Hata T.,
Hata K.,
Yamane Y.,
Osamu T.,
Kitao M.
Publication year - 1989
Publication title -
international journal of gynecology and obstetrics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.895
H-Index - 97
eISSN - 1879-3479
pISSN - 0020-7292
DOI - 10.1016/0020-7292(89)90353-6
Subject(s) - medicine , fetus , gestational age , in utero , gestation , crown rump length , ultrasonogram , obstetrics , ultrasonography , gestational sac , gynecology , pregnancy , anatomy , radiology , first trimester , genetics , biology
Eighty‐two ultrasonographic examinations were performed on 60 of our pregnant patients with regular menstrual cycles and no complications. The pregnancies ranged from 7 to 13 weeks of gestation. Thoracic anteroposterior diameter (ETAPD), transverse diameter (ETTD), cross‐sectional area (ETA) and crown‐rump length (CRL) were measured on each ultrasonogram. A high correlation between CRL and gestational age was firstly confirmed in this study. ETAPD, ETTD and ETA correlated well with the gestational age and CRL, respectively. Correlations between ETAPD/CRL and ETTD/CRL ratios with the gestational age were negative. A positive correlation of ETA/CRL ratio with the gestational age was evident. Ultrasonographic measurement of the thoracic diameters of the fetus in utero should be a useful parameter to evaluate the gestational age and for early detection of growth retardation in utero.