Ectopic pregnancy: Duplex Doppler evaluation

K. J W Taylor, I. M. Ramos, A. L. Feyock, D. P. Snower, D. Carter, B. S. Shapiro, W. R. Meyer, A. H. De Cherney

Research output: Contribution to journalArticle

Abstract

Of 398 patients in whom there was a clinical suspicion of ectopic pregnancy, 96 (24%) were found to have the condition. Of the 96, 70 underwent duplex Doppler imaging. A viable ectopic fetus was seen in 10 of 70 (14%), and an extrauterine sac without an identifiable fetus was seen in an additional 27, giving a sensitivity for imaging alone of 53%. Fetal heart activity was detected with Doppler in 13 (19%). High-velocity flow, which suggested the presence of an ectopic pregnancy, was detected in 38 of 70 (54%) patients (total preoperative sensitivity, 73%). In the 91 patients who did not have an ectopic pregnancy, duplex Doppler imaging of the intrauterine contents alone allowed an ectopic pregnancy to be excluded in 29 (32%) on the first examination and in a further 21 on the second scan (specificity, 55%). Nine vascular adnexal masses were falsely considered to be ectopic pregnancies (specificity, 90%). The positive predictive values were 47% for imaging alone and 85% for Doppler. The negative predictive values were 60% for imaging alone and 81% for Doppler.

Original languageEnglish (US)
Pages (from-to)93-97
Number of pages5
JournalRadiology
Volume173
Issue number1
StatePublished - 1989
Externally publishedYes

ASJC Scopus subject areas

  • Radiological and Ultrasound Technology

Fingerprint Dive into the research topics of 'Ectopic pregnancy: Duplex Doppler evaluation'. Together they form a unique fingerprint.

  • Cite this

    Taylor, K. J. W., Ramos, I. M., Feyock, A. L., Snower, D. P., Carter, D., Shapiro, B. S., Meyer, W. R., & De Cherney, A. H. (1989). Ectopic pregnancy: Duplex Doppler evaluation. Radiology, 173(1), 93-97.