Journal of Clinical Ultrasound · 1981 · 19 citations · 3 references
MedicineGynecologyObstetricsObstetric UltrasoundUltrasonographyUltrasoundCervical AnatomyCervical ImagingCervical UltrasonographyCervical UltrasoundObstetric UltrasonographyInternal Os AssessmentInternal Os EvaluationPregnancy Cervical Examination
Abstract Ultrasound can provide objective information in diagnosing incompetency of the internal os of the cervix during pregnancy and in evaluating the need for surgical correction. Attention must be paid to the technical aspects of the examination, and the examiner must be familiar with normal variations in the configuration.
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Ultrasonic Visualization of a Dilated Cervix During Pregnancy
Dennis A. Sarti, W. Frederick Sample, Calvin J. Hobel et al. · Radiology · 1979 · 66 citations
Medicine, Gynecology, Obstetrics +15
The Effect of the Urinary Bladder in Obstetrical Sonography
Seymour Zemlyn · Radiology · 1978 · 39 citations
Medicine, Gynecology, Obstetrics +17