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Comparison of nuchal translucency measurements obtained using Volume NT(TM) and two- and three-dimensional ultrasound

 H. Y. CHO  ;  J.-Y. KWON  ;  Y. H. KIM  ;  K. H. LEE  ;  J. KIM  ;  S. Y. KIM  ;  Y. W. PARK 
 ULTRASOUND IN OBSTETRICS & GYNECOLOGY, Vol.39(2) : 175-180, 2012 
Journal Title
Issue Date
Adult ; Feasibility Studies ; Female ; Humans ; Image Processing, Computer-Assisted* ; Imaging, Three-Dimensional* ; Nuchal Translucency Measurement/methods* ; Observer Variation ; Pregnancy ; Prospective Studies ; Reproducibility of Results ; Ultrasonography, Prenatal/methods
Acute lung injury ; acute respiratory distress syndrome ; hyaluronan ; leukocyte elastase inhibitor ; pulmonary edema
OBJECTIVE: To evaluate the feasibility of Volume NT(TM) , a new technique that automatically archives mid-sagittal plane views and measures the maximum nuchal translucency (NT) thickness, by comparing its measurements with those made with conventional two- (2D) and three-dimensional (3D) techniques. METHODS: This was a prospective study of 130 singleton pregnancies undergoing NT screening at 11 + 0 to 13 + 6 weeks of gestation. Fetuses with enlarged NT or multiple anomalies and those in the prone position were excluded. Success rate of NT measurement was assessed using Volume NT(TM) , 2D and 3D techniques. In cases in which all three techniques were successful, intra- and interobserver bias and levels of agreement for NT measurements within and between techniques were evaluated using Bland-Altman plots. RESULTS: Of 130 cases enrolled into the study, 16 were excluded from analysis due to enlarged NT (n = 3), prone position (n = 2) or missing data (n = 11). Among the 114 cases analyzed, NT measurement was successful by the conventional 2D method in 95.6% (109/114) of cases and by 3D and Volume NT(TM) measurements in 103 and 93 cases, respectively. Success rate was not significantly different between methods. In 89 cases, NT values were available using all three methods. Among them, mean ± SD 2D-NT was 1.3 ± 0.4 mm, 3D-NT was 1.2 ± 0.4 mm and Volume NT(TM) was 1.3 ± 0.4 mm. The mean differences of the intra- and interobserver variability of each method were not significantly different from zero for each method. CONCLUSIONS: Volume NT(TM) , a novel technique for automated NT measurement, is apparently reproducible and comparable with conventional 2D and 3D ultrasound techniques for NT measurement.
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1. College of Medicine (의과대학) > Dept. of Obstetrics and Gynecology (산부인과학교실) > 1. Journal Papers
Yonsei Authors
Kwon, Ja Young(권자영) ORCID logo https://orcid.org/0000-0003-3009-6325
Kim, Young Han(김영한) ORCID logo https://orcid.org/0000-0003-0645-6028
Park, Yong Won(박용원)
Cho, Hee Young(조희영)
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