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Intra- and interobserver variability in nodule size of rectosigmoid endometriosis measured by two- and three-dimensional transvaginal sonography
| Content Provider | Scilit |
|---|---|
| Author | Egekvist, Anne G. Forman, Axel Riiskjaer, Mads Kesmodel, Ulrik S. Mathiasen, Mie Seyer-Hansen, Mikkel |
| Copyright Year | 2018 |
| Description | Journal: Acta Obstetricia et Gynecologica Scandinavica Introduction The aim of the study was to assess the intra- and interobserver variability of two- and three-dimensional rectosigmoid nodule size measurements by transvaginal sonography in patients with rectosigmoid endometriosis. Material and methods Intra- and interobserver variability was assessed in 10 and 30 patients, respectively. Measurements in two dimensions were performed in real-time during the scan, and three-dimensional measurements of volume were done on a computer. Differences within and between observers were expressed in absolute units (mm) and percentage (%) of average nodule size. Coefficient of repeatability and Bland–Altman plots with limits of agreement were used to evaluate the intra- and interobserver variability. Results Intra- and interobserver variability in two-dimensional sonography ranged from 11 to 14 mm (46–51%) for length, 3 to 6 mm (32–57%) for depth and 5 to 9 mm (33–58%) for width of the nodule. Results of three-dimensional sonography, with assessment of nodule volume, showed intra- and interobserver variability 0.4 to 2.5 times the average nodule size. Conclusions Measurements of rectosigmoid endometriosis nodule size with two- and three- dimensional transvaginal sonography were associated with large intra- and interobserver variability. These techniques should therefore be used with caution in clinical control and research of nodule growth. |
| Ending Page | 743 |
| Starting Page | 734 |
| ISSN | 00221295 |
| e-ISSN | 16000412 |
| DOI | 10.1111/aogs.13343 |
| Journal | Acta Obstetricia et Gynecologica Scandinavica |
| Issue Number | 6 |
| Volume Number | 97 |
| Language | English |
| Publisher | Wiley-Blackwell |
| Publisher Date | 2018-06-01 |
| Access Restriction | Open |
| Subject Keyword | Journal: Acta Obstetricia et Gynecologica Scandinavica Obstetrics and Gynecology Rectosigmoid Endometriosis Observer Variation Deeply Infiltrating Endometriosis |
| Content Type | Text |
| Resource Type | Article |
| Subject | Obstetrics and Gynecology |
