Open AccessAcoustic Radiation Force Impulse Elastometry (ARFI Elastometry) of the Liver in Normal Subjects, after Food Intake and Physical Effort
Author(s) -
A. A. Megroyan,
Ju. R. Kamalov,
E. Ju. Krizhanovskaya,
А. В. Филин
Publication year - 2017
Publication title -
medicinskaâ vizualizaciâ
Language(s) - English
Resource type - Journals
eISSN - 2408-9516
pISSN - 1607-0763
DOI - 10.24835/1607-0763-2017-2-53-59
Subject(s) - medicine , supine position , meal , ultrasound , nuclear medicine , radiology
Purpose : the aim of this study was to assess the values of ARFI elastometry in normal subjects and effects of food intake and physical effort. Material and methods. ARFI elastometry measurements were done in 32 patients (20 (62.5%) volunteers and 12 (37.5%) potential liver fragment donors). Mean age of patients was 26.9 ± 5.3 years. The study was performed in fasting condition in right intercostals approach, while the patients were asked to stop normal breathing for a moment lying in supine position with the right hand placed above the head. For 20 volunteers ARFI elastometry was performed at 30 minutes after food intake (about 350 kcal) and at next day immediately after physical effort (20 squats). The study was performed using Siemens Acuson S2000 ultrasound system with a 6C1 transducer. Results. The stiffness of the right liver lobe in 32 healthy subjects was 1.16 ± 0.12 m/s (95% CI 0.92 ± 1.38), the mean liver stiffness values of 20 volunteers in fasting condition were 1,21±0,09 m/s (95% CI 1.06 ± 1.38), 30 minutes after the meal – 1.22 ± 0.12 m/s (95% CI 1.01 ± 1.43) (р > 0.05). Physical effort didn’t make significant influence on the liver stiffness measurements (1.16 ± 0.12 m/s vs 1.20 ± 0.07 m/s, р > 0.05). Conclusion. Liver stiffness value in healthy subjects was 1.16 ± 0.12 m/s (95% CI 0.92 ± 1.38). There was no significant influence of food intake and physical effort on the liver stiffness measurements.