| Three-dimensional Doppler evaluation of single spherical samples from placenta: Intra- and inter-observer reliability. | |
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MedLine Citation:
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PMID: 22173929 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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OBJECTIVE: To evaluate the intra- and inter-observer reliability when assessing three-dimensional power Doppler (3DPD) indices from single spherical samples of placenta. METHODS: Singleton pregnant women between 24 and 40 weeks were evaluated by two different observers. Three scans were independently performed in a blinded way by two observers: observer #1 did the first and third scan, intercalated by the scan of observer #2. The observers independently analyzed only the 3DPD datasets they previously acquired using four different methods: random spherical samples from basal to chorionic plate; or with 2cm(3) of volume; directed samples to the region subjectively determined as containing more color Doppler signals from basal to chorionic plate; or with 2cm(3) of volume. Additional evaluation was performed according placenta location: anterior, posterior, and fundal or lateral. Intra- and inter-observer reliability was assessed by intraclass correlation coefficients (ICC). RESULTS: The observers completely evaluated 95 pregnancies. All placental 3DPD indices (VI, FI and VFI) showed only weak to moderate reliability (ICC< 0.66, ICC< 0.48, intra- and inter-observer, respectively). The highest values of ICC were observed when using directed spherical samples from basal to chorionic plate. According to placental location, we verified lower ICC values for lateral and fundal placentas, compared to anterior and posterior placentas. CONCLUSION: Placental 3DPD indices from single spherical samples in pregnant women after 24 weeks presented weak to moderate intra- and inter-observer reliability and are unlikely to have any clinical usefulness. Copyright © 2011 ISUOG. Published by John Wiley & Sons, Ltd. |
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Authors:
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Wellington P Martins; Jailson C Lima; Alec W Welsh; Edward Araujo Júnior; André H Miyague; Francisco Mauad Filho; Nicholas J Raine-Fenning |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-12-16 |
Journal Detail:
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Title: Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology Volume: - ISSN: 1469-0705 ISO Abbreviation: - Publication Date: 2011 Dec |
Date Detail:
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Created Date: 2011-12-16 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9108340 Medline TA: Ultrasound Obstet Gynecol Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
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Copyright © 2011 ISUOG. Published by John Wiley & Sons, Ltd. |
Affiliation:
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Departamento de Ginecologia e Obstetrícia da Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo (FMRP-USP), Ribeirão Preto, Brazil; Escola de Ultra-sonografia e Reciclagem Médica de Ribeirão Preto (EURP), Ribeirão Preto, Brazil; Instituto Nacional de Ciência e Tecnologia (INCT) de Hormônios e Saúde da Mulher, Ribeirão Preto, Brazil. wpmartins@gmail.com. |
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