Quantification of Liver Fat Content with the iATT Algorithm: Correlation with Controlled Attenuation Parameter.
Diagnostics (Basel)
; 12(8)2022 Jul 23.
Article
em En
| MEDLINE
| ID: mdl-35892497
ABSTRACT
Background:
The primary aim of our study was to assess the correlation between an improved version of the attenuation coefficient available on the Arietta 850 ultrasound system (iATT, Fujifilm Healthcare, Tokyo, Japan) and controlled attenuation parameter (CAP). The secondary aim was to assess whether focusing only on iATT acquisition without following the strict protocol for liver stiffness measurements would affect iATT measurement.Methods:
Consecutive individuals were enrolled. Pearson's r was used to test the correlation between ATT and CAP values. The concordance between iATT and CAP was tested using Lin's concordance correlation coefficient (CCC).Results:
354 individuals (203 males, 151 females) were studied. The overall Pearson correlation between CAP and iATT values obtained following or not following the liver stiffness measurement protocol, respectively, were r = 0.73 and r = 0.71. The correlation was affected by the interquartile range/median (IQR/M) of the 10 measurements it was r = 0.75 for IQR/M ≤ 15% and r = 0.60 for IQR/M > 15%. CCC showed that there was a moderate to good concordance between iATT and CAP values.Conclusion:
iATT shows a strong correlation with CAP that does not decrease when the protocol for liver stiffness acquisition is not followed. The correlation between iATT and CAP values is higher when the IQR/M ≤ 15%.
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Base de dados:
MEDLINE
Tipo de estudo:
Prognostic_studies
Idioma:
En
Ano de publicação:
2022
Tipo de documento:
Article