Add like
Add dislike
Add to saved papers

Normal placenta: gadolinium-enhanced dynamic MR imaging.

Radiology 1997 November
PURPOSE: To establish the appearance of the normal placenta on dynamic, gadolinium-enhanced magnetic resonance (MR) images.

MATERIALS AND METHODS: Eleven patients underwent MR imaging for suspected uterine (four patients) or placental (seven patients) abnormalities (but not placental insufficiency or intrauterine growth retardation). Unenhanced or gadolinium-enhanced, T1-weighted, fat suppressed, spoiled gradient-recalled-echo MR images and T2-weighted, half-Fourier, single-shot, spin-echo-train MR images were obtained. Two investigators retrospectively evaluated the images to determine the rate, pattern, and degree of placental contrast material enhancement with myometrial enhancement as a reference.

RESULTS: The diagnoses were normal placenta (six patients), abnormal placental position (four patients), and subchorionic hematoma (one patient). The placenta rapidly and intensely enhanced on images acquired immediately after contrast material administration and preceded substantial enhancement of the myometrium. Immediately postcontrast images showed closely packed 2-3-cm lobules of placental enhancement in third-trimester pregnancies and heterogeneous placental enhancement in second-trimester pregnancies. In all cases, placental enhancement became more homogeneous over time. The placenta could be readily distinguished from the myometrium. All neonates were healthy with no evidence of intrauterine growth retardation.

CONCLUSION: Normal placental enhancement is intense on immediately postcontrast images and precedes substantial myometrial enhancement. Third-trimester placentas exhibit a lobular pattern of enhancement, while second-trimester placentas exhibit heterogeneous enhancement.

Full text links

We have located links that may give you full text access.
Can't access the paper?
Try logging in through your university/institutional subscription. For a smoother one-click institutional access experience, please use our mobile app.

For the best experience, use the Read mobile app

Mobile app image

Get seemless 1-tap access through your institution/university

For the best experience, use the Read mobile app

All material on this website is protected by copyright, Copyright © 1994-2024 by WebMD LLC.
This website also contains material copyrighted by 3rd parties.

By using this service, you agree to our terms of use and privacy policy.

Your Privacy Choices Toggle icon

You can now claim free CME credits for this literature searchClaim now

Get seemless 1-tap access through your institution/university

For the best experience, use the Read mobile app