Mi-Jung Lee1, Myung-Joon Kim, Kyung Hwa Han, Choon Sik Yoon. 1. Department of Radiology and Research Institute of Radiological Science, Severance Children's Hospital, Yonsei University, College of Medicine, 50 Yonsei-ro, Seodaemun-gu, Seoul 120-752, Republic of Korea. mjl1213@yuhs.ac
Abstract
OBJECTIVES: To evaluate the feasibility and age-related changes of shear wave velocity (SWV) in normal livers, kidneys, and spleens of children using acoustic radiation force impulse (ARFI) imaging. MATERIALS AND METHODS: Healthy pediatric volunteers prospectively underwent abdominal ultrasonography and ARFI. The subjects were divided into three groups according to age: group 1: <5 years old; group 2: 5-10 years old; and group 3: >10 years old. The SWV was measured using a 4-9 MHz linear probe for group 1 and a 1-4 MHz convex probe for groups 2 and 3. Three valid SWV measurements were acquired for each organ. RESULTS: Two hundred and two children (92 male, 110 female) with an average age of 8.1 years (± 4.7) were included in this study and had a successful measurement rate of 97% (196/202). The mean SWVs were 1.12 m/s for the liver, 2.19 m/s for the right kidney, 2.33 m/s for the left kidney, and 2.25 m/s for the spleen. The SWVs for the right and left kidneys, and the spleen showed age-related changes in all children (p<0.001). And the SWVs for the kidneys increased with age in group 1, and those for the liver changed with age in group 3. CONCLUSIONS: ARFI measurements are feasible for solid abdominal organs in children using high or low frequency probes. The mean ARFI SWV for the kidneys increased according to age in children less than 5 years of age and in the liver, it changed with age in children over 10.
OBJECTIVES: To evaluate the feasibility and age-related changes of shear wave velocity (SWV) in normal livers, kidneys, and spleens of children using acoustic radiation force impulse (ARFI) imaging. MATERIALS AND METHODS: Healthy pediatric volunteers prospectively underwent abdominal ultrasonography and ARFI. The subjects were divided into three groups according to age: group 1: <5 years old; group 2: 5-10 years old; and group 3: >10 years old. The SWV was measured using a 4-9 MHz linear probe for group 1 and a 1-4 MHz convex probe for groups 2 and 3. Three valid SWV measurements were acquired for each organ. RESULTS: Two hundred and two children (92 male, 110 female) with an average age of 8.1 years (± 4.7) were included in this study and had a successful measurement rate of 97% (196/202). The mean SWVs were 1.12 m/s for the liver, 2.19 m/s for the right kidney, 2.33 m/s for the left kidney, and 2.25 m/s for the spleen. The SWVs for the right and left kidneys, and the spleen showed age-related changes in all children (p<0.001). And the SWVs for the kidneys increased with age in group 1, and those for the liver changed with age in group 3. CONCLUSIONS: ARFI measurements are feasible for solid abdominal organs in children using high or low frequency probes. The mean ARFI SWV for the kidneys increased according to age in children less than 5 years of age and in the liver, it changed with age in children over 10.
Authors: Michael Esser; Michael Bitzer; Manuel Kolb; Jan Fritz; Mustafa Kurucay; Christer Ruff; Marius Horger Journal: J Med Ultrason (2001) Date: 2018-06-13 Impact factor: 1.314
Authors: Pierluigi Marzuillo; Anna Grandone; Laura Perrone; Emanuele Miraglia Del Giudice Journal: World J Gastroenterol Date: 2015-06-07 Impact factor: 5.742
Authors: Frank W DiPaola; Kurt R Schumacher; Caren S Goldberg; Joshua Friedland-Little; Aishwarya Parameswaran; Jonathan R Dillman Journal: Eur Radiol Date: 2016-10-17 Impact factor: 5.315
Authors: Sabrina Galgenmueller; Heike Jaeger; Wolfgang Kratzer; Stefan A Schmidt; Suemeyra Oeztuerk; Mark M Haenle; Richard A Mason; Tilmann Graeter Journal: World J Gastroenterol Date: 2015-07-21 Impact factor: 5.742