Comparison of 3- and 2-dimensional sonographic techniques for counting ovarian follicles
Journal of Ultrasound in Medicine, ISSN: 0278-4297, Vol: 28, Issue: 10, Page: 1281-1288
2009
- 8Citations
- 8Captures
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Example: if you select the 1-year option for an article published in 2019 and a metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019. If you select the 3-year option for the same article published in 2019 and the metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019, 2018 and 2017.
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Metrics Details
- Citations8
- Citation Indexes8
- CrossRef5
- Captures8
- Readers8
Article Description
Objective. The purpose of this study was to compare 3-dimensional (3D) and 2-dimensional (2D) ovarian follicle counts and 3D counts using stored volumes between experienced and inexperienced operators. Methods. Follicles larger than 5 mm were counted on 1 randomly selected ovary. Twodimensional follicle counts were compared with stored 3D volumes by the same experienced operator (registered diagnostic medical sonographer [RDMS]). Counts using 3D stored data were compared between the experienced operator and inexperienced operator (principal investigator [PI]). The mean difference in follicle counts was computed, and a 1-sample Student t test was performed to test the hypothesis that the mean of the differences was 0. Comparison of the 2 methods and observers by Bland-Altman plots was used to determine any systematic differences based on the total number of follicles per selected ovary. Results. Mean differences differed from 0 (P < .005) for all 3 comparisons: 2D RDMS versus 3D RDMS, 2D RDMS versus 3D PI, and 3D RDMS versus 3D PI. For the comparison of 2D versus 3D counts done by the RDMS, 5 ovaries (10%) had a difference of more than 5 follicles counted; for the 2D RDMS versus 3D PI, 11 ovaries (22%) had a difference of more than 5 follicles; for the 3D RDMS versus 3D PI, 8 ovaries (16%) had a difference of more than 5 follicles. Mean differences in counts ranged 0.29 to 1.04 for ovaries with 10 or fewer follicles compared with 3.94 to 9.00 for ovaries with more than 10 follicles. Conclusions. Follicle counts using 3D volumes were similar to 2D counts, and 3D follicle counts done by an inexperienced operator were similar to counts done by an experienced sonographer. © 2009 by the American Institute of Ultrasound in Medicine.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=74749097580&origin=inward; http://dx.doi.org/10.7863/jum.2009.28.10.1281; http://www.ncbi.nlm.nih.gov/pubmed/19778873; http://doi.wiley.com/10.7863/jum.2009.28.10.1281; https://dx.doi.org/10.7863/jum.2009.28.10.1281; https://onlinelibrary.wiley.com/doi/abs/10.7863/jum.2009.28.10.1281
Wiley
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