Quantitative US fat fraction for noninvasive assessment of hepatic steatosis in suspected metabolic-associated fatty liver disease.

Objectives: To evaluate the agreement between quantitative ultrasound system fat fraction (USFF) and proton magnetic resonance spectroscopy (H-MRS) and the diagnostic value of USFF in assessing metabolic-associated fatty liver disease (MAFLD).

Methods: The participants with or suspected of MAFLD were prospectively recruited and underwent H-MRS, USFF, and controlled attenuation parameter (CAP) measurements. The correlation between USFF and H-MRS was assessed using Pearson correlation coefficients.

Interoperator reproducibility of quantitative ultrasound analysis of hepatic steatosis in participants with suspected MASLD: A prospective study.

Objectives: To evaluate the reproducibility of tissue attenuation imaging (TAI) and tissue scatter distribution imaging (TSI) measurements in adults with suspected metabolic dysfunction-associated steatotic liver disease (MASLD) between radiologists with varying experience.

Materials And Methods: Participants with suspected MASLD were prospectively recruited. TAI and TSI were performed for each participant by two radiologists with different levels of experience.

A prospective comparison of three ultrasound-based techniques in quantitative diagnosis of hepatic steatosis in NAFLD.

Purpose: To investigate the correlation between different ultrasound attenuation-based techniques and to compare their diagnostic performances using proton magnetic resonance spectroscopy (H-MRS) as a reference standard.

Methods: Participants who had clinical suspicion of nonalcoholic fatty liver disease (NAFLD) were prospectively recruited. Each subject had ultrasound with attenuation imaging (ATI) or quantitative ultrasound including tissue attenuation imaging (TAI) and tissue scatter-distribution imaging (TSI), and controlled-attenuation parameter (CAP) and H-MRS if available.

Rothia amarae sp. nov., from sludge of a foul water sewer.

A Gram-positive bacterium, strain J18(T), isolated from sludge of a foul water sewer, was subjected to a polyphasic taxonomic study. Phylogenetic analysis of the bacterium based on its 16S rDNA sequence showed that it belongs to the genus Rothia and forms a distinct phyletic clade with the type strain of Rothia nasimurium. Morphological, physiological and chemotaxonomic characteristics supported the assignment of this organism to the genus Rothia and distinguished it from the type strains of all validly described Rothia species.