title: Are Results of 4-D Ultrasound Angiography Examinations Dependent on the Doppler Technology Applied? Comparison of Results Obtained from an In Vivo Model.
abstract: We aimed to evaluate the agreement of results obtained by 4-D spatio-temporal image correlation (STIC) angiography with two options of Doppler technology (power Doppler [PD] and high-definition flow [HDF]) from an ovary as an in vivo model. Thirty-eight ovaries were recorded by trans-vaginal ultrasound examination in the first part of the menstrual cycle. Two STIC sequences (4-D HDF and 4-D PD) were stored. Volumetric pulsatility index, volumetric resistance index and volumetric systolic/diastolic index for each of these sequences were calculated, and their mean values were compared and correlated. Agreement between 4-D HDF and 4-D PD was assessed using the intra-class correlation coefficient. Intra-class correlation coefficients for all three indices were high, but 95% confidence intervals and limits of agreement were wide. We conclude that both 4-D power Doppler and 4-D high-definition flow may be used for calculating volumetric pulsatility index, volumetric resistance index and volumetric systolic/diastolic index from a STIC sequence, at least in ovaries used as an in vivo model. However, values obtained by both methods cannot be used interchangeably.
authors.affiliation: Clinical Department of Oncological Gynecology, Chair of Woman's Health, Medical University of Silesia, Katowice, Poland. Electronic address: marekkudla@hotmail.com.
authors.forename: Marek J
authors.initials: MJ
authors.lastname: Kudla
authors.affiliation: Department of Gynecology and Obstetrics, Regional Specialist Hospital No. 3, Rybnik, Poland.
authors.forename: Andrzej
authors.initials: A
authors.lastname: Los
authors.affiliation: Department of Obstetrics and Gynecology, Clinica Universidad de Navarra, Medical School, University of Navarra, Pamplona, Spain.
authors.forename: Juan Luis
authors.initials: JL
authors.lastname: Alcazar
mesh_terms: D000328:Adult; D000792:Angiography / Q000379:methods; D001783:Blood Flow Velocity / Q000502:physiology*; D015150:Echocardiography, Doppler / Q000379:methods*; D019561:Echocardiography, Four-Dimensional / Q000379:methods*; D005260:Female; D006801:Humans; D007090:Image Interpretation, Computer-Assisted / Q000379:methods*; D010053:Ovary / Q000098:blood supply / Q000000981:diagnostic imaging* / Q000503:physiopathology*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity
keywords: 4-D; Agreement; Doppler; Ovary; Ultrasound