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Congress: ECR25
Poster Number: C-27999
Type: Poster: EPOS Radiologist (scientific)
DOI: 10.26044/ecr2025/C-27999
Authorblock: R. G. Barr1, G. Ferraioli2, D. Roccarina3, T. Kumada4, S. Ogawa5, Y. Yoshida6, M. Hirooka7; 1Canfield, OH/US, 2Pavia/IT, 3Firenze/IT, 4Gifu/JP, 5Ogaki/JP, 6Suita, Osaka,/JP, 7Ehime/JP
Disclosures:
Richard G. Barr: Grant Recipient: Siemens Healthineers, Philips Ultrasound, Samsung Ultrasound Equipment Support Recipient: Siemens Healthineers, Philips Ultrasound, Mindray Ultrasound, Samsung Ultrasound, SuperSonic Imagine, Canon Medical Speaker: Siemens Healthineers, Canon Medical, Philips Ultrasound, SuperSonic Imagine, Mindray Ultrasound, Samsung Ultrasound
Giovanna Ferraioli: Speaker: Canon Medical Systems, Fujifilm Healthcare, Mindray Bio-Medical Electronics Co., Philips Ultrasound, Siemens Healthineers Equipment Support Recipient: Canon Medical Systems, Fujifilm Medical Systems Advisory Board: Philips Healthcare
Davide Roccarina: Nothing to disclose
Takashi Kumada: Grant Recipient: FujiFilm
Sadanobu Ogawa: Nothing to disclose
Yuichi Yoshida: Nothing to disclose
Masashi Hirooka: Nothing to disclose
Keywords: Liver, Ultrasound, Efficacy studies, Screening, Metabolic disorders
Purpose

The prevalence of steatotic liver disease worldwide is high, therefore a non-invasive and cost-effective tool to accurately detect individuals with liver steatosis is needed. iATT algorithm implemented in Arietta series ultrasound systems (Fujifilm, Tokyo, Japan) estimates attenuation coefficient (AC) for fat quantification in a fixed region of interest (ROI) from 35 to 75mm from the transducer. The fixed ROI distance can be a limitation for individuals with thick subcutaneous tissue, i.e., overweight or obese.

Aims: To evaluate whether correlation between AC and magnetic resonance imaging proton density fat fraction (MRI-PDFF) and performance could improve by (i) reducing ROI length to 30mm, while the starting point is 45mm from the transducer; (ii) using floating ROI for measurements at different depths.
GALLERY