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With Discussions by Drs. J. B. Murphy and J. B. De Lee
X-ray skiagraphs for the differential diagnosis of pregnancy have been attempted for some time by radiologists, both in America and abroad, but with only partial success. Many radiologists have shown on plates only indistinct opaque shadows without detail, making it difficult to obtain any clear conception of the position of the fetus.The technic I have developed not only shows clearly the fetus in the uterus, but is capable of showing many abnormalities. The first case was referred to me by Dr. J. B. Murphy, a breech presentation which has distinct pathologic conditions and which will be described by him in detail. I have since then made over 150 exposures, and find that there is not the slightest danger to mother or child.The position of the fetus can be clearly determined from the fourth month. The obstetricians
O'DONNELL PS. X-RAY FINDINGS IN THE DIFFERENTIAL DIAGNOSIS OF EARLY AND LATE PREGNANCIES. JAMA. 1912;LVIII(11):748–750. doi:10.1001/jama.1912.04260030146004