156665 20251017144604.0 doi 10.1002/uog.20370 sideral 119143 ART-2020-119143 eng Rial-Crestelo, M. Quality assessment of fetal middle cerebral and umbilical artery Doppler images using an objective scale within an international randomized controlled trial 2020 Access copy available to the general public Unrestricted Objectives: To determine the quality of Doppler images of the fetal middle cerebral artery (MCA) and umbilical artery (UA) using an objective scale, and to determine the reliability of this scale, within a multicenter randomized controlled trial (Revealed versus concealed criteria for placental insufficiency in unselected obstetric population in late pregnancy (Ratio37)). Methods: The Ratio37 trial is an ongoing randomized, open-label, multicenter controlled study of women with a low-risk pregnancy recruited at 20 weeks. Doppler measurements of the fetal MCA and UA were performed at 37 weeks. Twenty patients from each of the six participating centers were selected randomly, with two images evaluated per patient (one each for the MCA and UA). The quality of a total of 240 images was evaluated by six experts, scored on an objective scale of six items. Inter- and intrarater reliability was assessed using the Fleiss-modified kappa statistic for ordinal scales. Results: On average, 89.2% of MCA images and 85.0% of UA images were rated as being of perfect (score of 6) or almost perfect (score of 5) quality. Kappa values for intrarater reliability of quality assessment were 0.90 (95% CI, 0.88–0.92) and 0.90 (95% CI, 0.88–0.93) for the MCA and UA, respectively. The corresponding inter-rater reliability values were 0.85 (95% CI, 0.81–0.89) and 0.84 (95% CI, 0.80–0.89), respectively. Conclusion: The quality of MCA and UA Doppler ultrasound images can be evaluated reliably using an objective scale. Over 85% of images, which were obtained by operators from a broad range of clinical practices within a multicenter study, were rated as being of perfect or almost perfect quality. Intra- and inter-rater reliability of quality assessment was very good. info:eu-repo/semantics/openAccess by https://creativecommons.org/licenses/by/4.0/deed.es 7.299 2020 ACOUSTICS 2 / 31 = 0.065 2020 Q1 T1 RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING 10 / 133 = 0.075 2020 Q1 T1 OBSTETRICS & GYNECOLOGY 5 / 83 = 0.06 2020 Q1 T1 3.202 2020 Medicine (miscellaneous) 2020 Q1 Obstetrics and Gynecology 2020 Q1 Reproductive Medicine 2020 Q1 Radiology, Nuclear Medicine and Imaging 2020 Q1 Radiological and Ultrasound Technology 2020 Q1 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Morales-Roselló, J. Hernández-Andrade, E. Prefumo, F. Oros, D. Universidad de Zaragoza (orcid)0000-0002-8476-9161 Caffici, D. Sotiriadis, A. Zohav, E. Cruz-Martinez, R. Parra-Cordero, M. Lubusky, M. Kacerovsky, M. Figueras, F. 1013 645 Universidad de Zaragoza Dpto. Cirugía Área Obstetricia y Ginecología 56, 2 (2020), 182-186 Ultrasound obstet. gynecol. ULTRASOUND IN OBSTETRICS & GYNECOLOGY 0960-7692 261857 http://zaguan.unizar.es/record/156665/files/texto_completo.pdf Versión publicada 3281335 http://zaguan.unizar.es/record/156665/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:156665 articulos driver 2025-10-17-14:14:47 ARTICLE