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Computerised assessment of placental calcification post ultrasound - a novel new software tool.
MedLine Citation:
PMID:  22858982     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Objective Placental calcification is associated with an increased risk of perinatal morbidity and mortality. The subjectivity of current ultrasound methods of assessment of placental calcification indicate that a more objective method is required. The aim of this study was to correlate the percentage of calcification defined by the clinician using a new software tool for calculating the extent of placental calcification, with traditional ultrasound methods and correlation with pregnancy outcome. Methods 90 placental images were individually assessed. An upper threshold was defined based on high intensity to quantify calcification within the placenta. Output metrics were then produced including the overall percentage of calcification in reference to the total number of pixels within the region of interest. The results were correlated with traditional ultrasound methods of assessment of placental calcification and with pregnancy outcome. Results The results demonstrate a significant correlation between placental calcification as defined using the software and traditional methods of Grannum grading of placental calcification. Whilst correlation with perinatal outcome and cord pH was not significant due to small numbers, patients with placental calcification assessed by the computerised software at the upper quartile had higher rates of poor perinatal outcome when compared with those at the lower quartile (8/22 (36%) vs 3/23 (13%) NS). Conclusions These results suggest that this computerised software tool has the potential to become an alternative method of assessing placental calcification. Copyright © 2012 ISUOG. Published by John Wiley & Sons, Ltd.
Authors:
M Moran; M Higgins; G Zombori; J Ryan; Fm McAuliffe
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-8-1
Journal Detail:
Title:  Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology     Volume:  -     ISSN:  1469-0705     ISO Abbreviation:  Ultrasound Obstet Gynecol     Publication Date:  2012 Aug 
Date Detail:
Created Date:  2012-8-3     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9108340     Medline TA:  Ultrasound Obstet Gynecol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2012 ISUOG. Published by John Wiley & Sons, Ltd.
Affiliation:
Diagnostic Imaging, School of Medicine and Medical Science, University College Dublin, Dublin, Ireland. moran.mary@ucd.ie.
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