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  • Ultrasound, MRI may...

Ultrasound, MRI may help in diagnosis of placenta accreta spectrum disorder: Study

Hina ZahidWritten by Hina Zahid Published On 2021-05-29T09:00:55+05:30  |  Updated On 2021-05-29T09:00:57+05:30
Ultrasound, MRI may help in diagnosis of placenta accreta spectrum disorder: Study

Placental bulge sign on either prenatal ultrasound or MRI may help diagnose severe PAS warranting hysterectomy rather than conservative management. USA: Accurate prenatal diagnosis of severe placental accreta spectrum (PAS) disorder by imaging may guide maternal counseling and selection between hysterectomy and uterine-preserving surgery, finds a recent study. The findings, published...

Placental bulge sign on either prenatal ultrasound or MRI may help diagnose severe PAS warranting hysterectomy rather than conservative management. 

USA: Accurate prenatal diagnosis of severe placental accreta spectrum (PAS) disorder by imaging may guide maternal counseling and selection between hysterectomy and uterine-preserving surgery, finds a recent study. 

The findings, published in the American Journal of Roentgenology (AJR), suggest the strong performance of placental bulge for the diagnosis of severe PAS on both US and MRI, with potentially relatively stronger performance on MRI. Nonetheless, the interobserver agreement remains suboptimal on both modalities.

On ultrasound and MRI alike, the placental bulge sign represents deeper venous invasion in PAS--the focal area of myometrial-placental bulging beyond the normal uterine contour. Dighe and colleagues' retrospective study included 62 pregnant women (mean age, 33.2 years) with clinically suspected PAS who underwent both ultrasound and MRI. Blinded to final diagnoses, two maternal-fetal medicine specialists for ultrasound and three abdominal radiologists for MRI independently reviewed images for their respective modality. Using intraoperative and pathologic findings, alongside the International Federation of Gynaecology and Obstetrics classification, patients were separated into those with and without severe PAS.

"In diagnosing severe PAS," Dighe et al. noted, "placental bulge sign achieved on ultrasound an accuracy of 85.5%, the sensitivity of 91.7%, and specificity of 76.9%, and on MRI an accuracy of 90.3%, sensitivity of 94.4%, and specificity of 84.6%." Ultimately, the placental bulge was an independent predictor of severe PAS on ultrasound (odds ratio=8.94) and MRI (odds ratio=45.67).

"Placental bulge sign on either prenatal ultrasound or MRI may help diagnose severe PAS warranting hysterectomy rather than conservative management," the authors of this AJR article concluded.

Reference:

The study titled, "Role of Ultrasound and MRI in Diagnosis of Severe Placenta Accreta Spectrum Disorder: An Intraindividual Assessment With Emphasis on Placental Bulge," is published in the American Journal of Roentgenology.

DOI: https://www.ajronline.org/doi/10.2214/AJR.21.25581

american journal of roentgenology ultrasound mri placental accreta spectrum 
Source : American Journal of Roentgenology
Hina Zahid
Hina Zahid

    Hina Zahid Joined Medical Dialogue in 2017 with a passion to work as a Reporter. She coordinates with various national and international journals and association and covers all the stories related to Medical guidelines, Medical Journals, rare medical surgeries as well as all the updates in the medical field. Email: editorial@medicaldialogues.in. Contact no. 011-43720751

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