| Magnetic resonance imaging of clinically stable late pregnancy bleeding: beyond ultrasound. | |
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MedLine Citation:
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PMID: 21484352 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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OBJECTIVES: To compare the accuracy of magnetic resonance (MRI) and colour Doppler-ultrasound (US) in the diagnosis of late pregnancy bleeding and to assess the accuracy of the different MR sequences in visualizing the origin of haemorrhage. METHODS: 42 patients in the third trimester of pregnancy underwent to US and MRI for the evaluation of painless vaginal bleeding. Multiplanar HASTE, True Fisp, 3D T1 GRE and sagittal DWI sequences were acquired. Two radiologists, blinded to the results of US, reviewed each case, resolving by consensus any discrepancy. Reference standards were surgical and pathological findings. RESULTS: The reference standards identified 22 placenta previa, 11 placental abruptions (1 coincident with a placental chorioangioma), 1 thrombohaematoma and 1 fibroma with haemorrhagic degeneration. MRI identified correctly all these condition with an interobserver agreement of 0.955. DWI and T1 weighted sequences were statistically superior to Haste and True Fisp sequences in detecting the cause of bleeding (p < .001). US had 6 false negatives and 2 false positive results, its diagnostic accuracy resulting lower than MRI (p = .001). CONCLUSIONS: MRI accurately evaluates pregnancy bleeding with an excellent interobserver agreement and can grant new and additional data when US is negative. |
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Authors:
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Gabriele Masselli; Roberto Brunelli; Tiziana Parasassi; Giuseppina Perrone; Gianfranco Gualdi |
Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-4-12 |
Journal Detail:
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Title: European radiology Volume: - ISSN: 1432-1084 ISO Abbreviation: - Publication Date: 2011 Apr |
Date Detail:
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Created Date: 2011-4-12 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9114774 Medline TA: Eur Radiol Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
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Radiology Dea Department, Umberto I Hospital, Sapienza University, Viale del Policlinico 155, 00161, Rome, Italy, gabrielemasselli@libero.it. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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