Superb Microvascular Imaging of Retained Placenta with Placenta Accreta Spectrum

JOURNAL TITLE: Donald School Journal of Ultrasound in Obstetrics and Gynecology

Author
1. Kenta Yamamoto
2. Ayumi Mori
3. Nobuhiro Mori
4. Chiaki Tenkumo
5. Hirokazu Tanaka
6. Uiko Hanaoka
ISSN
0973-614X
DOI
10.5005/jp-journals-10009-1600
Volume
13
Issue
3
Publishing Year
2019
Pages
3
Author Affiliations
    1. Department of Perinatology and Gynecology, Kagawa University Graduate School of Medicine, Miki, Kagawa, Japan
    1. Department of Perinatology and Gynecology, Kagawa University School of Medicine, Kagawa, Japan
  • Article keywords
    18-MHz linear probe, High-resolution ultrasound, Placenta accreta spectrum, Retained placenta, Superb microvascular imaging

    Abstract

    We present our first experience of using superb microvascular imaging (SMI) with an 18-MHz linear probe to diagnose placenta accreta spectrum (PAS) in the retained placenta after vaginal delivery. In the first case, irregular minimal invasion of the retained placenta into the anterior myometrium and a thin uterine wall were clearly noted. In the second case, SMI clearly demonstrated the loss of myometrium anterior to fundal lesions and abnormally dilated, torturous, stem villous vessels invading until the uterine serosa. SMI with the use of an 18-MHz linear probe may be a novel diagnostic tool for the diagnosis of PAS in the retained placenta after delivery.

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