The XL probe: A luxury or a necessity? Risk stratification in an obese community cohort using transient elastography:
2018
BackgroundTransient elastography is a non-invasive tool which can stratify patients at risk of chronic liver disease. However, a raised body mass index has been independently associated with a failed or unreliable examination.ObjectiveThe purpose of this study was to analyse the performance of two probes (M/XL) on a portable transient elastography device within an obese community population.MethodThe method involved a prospective study with recruitment from a primary care practice. Patients identified with a risk factor for chronic liver disease were invited to a community-based risk stratification pathway for transient elastography readings with both probes. A threshold of ≥8.0 kPa defined elevated liver stiffness.ResultsA total of 477 patients attended the pathway. Of the patients, 21% had no valid measurements with the M probe. There was a significant difference between the probes in the proportion achieving ≥10 valid readings (M versus XL probe: 66.2% versus 90.2%; p ≤ 0.001) and in their reliability ...
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