Ultrasonographic renal volume measurements in early autosomal dominant polycystic disease: comparison with CT-scan renal volume calculations.
Diagn Interv Imaging
; 96(1): 65-71, 2015 Jan.
Article
en En
| MEDLINE
| ID: mdl-25547671
PURPOSE: To investigate the correlation and concordance between the ellipsoid volume calculated by ultrasonography measurements (Vol3DUS) and the reference kidney volume measured by CT (VolTDM) in early autosomal dominant polycystic kidney disease (ADPKD). MATERIALS AND METHODS: Prospective study of the correlation and concordance of renal volumes in 24 patients with early ADPKD (48 kidneys analysed separately), with calculation of Vol3DUS using the formula for an ellipsoid in three different manners and VolTDM measurement by manual contouring. Calculations of correlation coefficients (r) and coefficients of intra-class correlation (ICC) with confidence intervals at 95%. RESULTS: The US volume was strongly correlated with the CT volume by using the maximum width in a transverse section (r=0.83) with a mean Vol3DUS=692±348ml [180; 2069]. The most reproducible ultrasonography measurement was the height. When the kidney volume exceeded 800ml, US underestimated the volume. However, the median error was -57.5ml [-1090; 183] and 85% of the Vol3DUS calculated differed by more than 5% from the reference measurement. CONCLUSION: The correlation between the US calculated volumes and the CT volumes was strong. However, the median error with ellipsoid US volume was too high to detect a small renal variation in early ADPKD.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Riñón Poliquístico Autosómico Dominante
/
Riñón
Tipo de estudio:
Diagnostic_studies
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Observational_studies
Aspecto:
Patient_preference
Límite:
Adult
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Female
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Humans
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Male
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Middle aged
Idioma:
En
Revista:
Diagn Interv Imaging
Año:
2015
Tipo del documento:
Article
País de afiliación:
Francia
Pais de publicación:
Francia