Document Detail


Transvaginal grey scale histogram of the cervix at 20-25 weeks of pregnancy.
MedLine Citation:
PMID:  21039378     Owner:  NLM     Status:  In-Process    
Abstract/OtherAbstract:
AIM: To assess the echogenicity of the cervical stroma and area surrounding the cervical canal (cervical gland area - CGA) using grey scale histogram (GSH) in pregnancies between 20 and 25 weeks.
METHODS: Cross-sectional study involving 149 pregnancies in the second trimester. Transvaginal sonography was performed to measure cervical length (biometric evaluation), assess the CGA and detect cervical funnelling (morphologic evaluation). The GSH was used for the objective assessment of the cervical stroma and CGA in the mid portion of the cervix. Mean, minimum, maximum and standard deviation measurements were obtained on the GSH and the CGA/stroma ratio was calculated. Intra-observer and inter-observer reproducibility were assessed using the intraclass correlation coefficient (ICC).
RESULTS: Mean cervical length was 42.37 ± 7.05 mm (range 12-54 mm). Funnelling was detected in four women (2.7%) and one of these also had absent CGA. The mean GSH stroma value was 103 ± 25 (53-160) and the mean CGA value was 64.5 ± 23 (13-167). The mean CGA/stroma ratio was 0.62 ± 0.14 (0.24-1.29). Intra- and inter-observer reproducibility was excellent with ICC of 0.975 and 0.922 respectively.
CONCLUSION: There are large differences in the texture of the cervical stroma and CGA on GSH allowing the objective differentiation of the two areas. The CGA/stroma ratio allows the objective assessment of the absence or presence of the CGA.
Authors:
Marcio R Furtado; Claudio R Pires; Edward Araujo Júnior; Eduardo De Souza; Luciano M M Nardozza; Antonio F Moron
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Publication Detail:
Type:  Journal Article     Date:  2010-09-10
Journal Detail:
Title:  The Australian & New Zealand journal of obstetrics & gynaecology     Volume:  50     ISSN:  1479-828X     ISO Abbreviation:  Aust N Z J Obstet Gynaecol     Publication Date:  2010 Oct 
Date Detail:
Created Date:  2010-11-02     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0001027     Medline TA:  Aust N Z J Obstet Gynaecol     Country:  Australia    
Other Details:
Languages:  eng     Pagination:  444-9     Citation Subset:  IM    
Copyright Information:
© 2010 The Authors. Australian and New Zealand Journal of Obstetrics and Gynaecology © 2010 The Royal Australian and New Zealand College of Obstetricians and Gynaecologists.
Affiliation:
Department of Obstetrics, São Paulo Federal University (UNIFESP), São Paulo, SP, Brazil.
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