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focusing on fetuses of less than 19 weeks' menstrual age. Menstrual age was a significant variable in procuring a satisfactory four-chamber view.
1. J Clin Ultrasound. 1991 May;19(4):221-3. Fetal loss rate after ultrasonically documented cardiac activity between 6 and 14 weeks, menstrual age.
Antenatal detection of hydranencephaly at 12 weeks, menstrual age. Yue-Shan Lin MD, Fong-Ming Chang MD * and; Chi-Hong Liu MD; Article first published online: 2 DEC 2005.
Seven cysts resolved by 12 weeks menstrual age. The incidence of cysts in patients who underwent US at the authors' institution between 8 and 12 weeks menstrual ag...