0 56

Cited 0 times in

Attenuation Coefficient Measurement Using a High-Frequency (2-9 MHz) Convex Transducer for Children Including Fatty Liver

Authors
 Haesung Yoon  ;  Jisoo Kim  ;  Hyun Ji Lim  ;  Naohisa Kamiyama  ;  Takuma Oguri  ;  Hong Koh  ;  Mi-Jung Lee 
Citation
 ULTRASOUND IN MEDICINE AND BIOLOGY, Vol.48(6) : 1070-1077, 2022-06 
Journal Title
ULTRASOUND IN MEDICINE AND BIOLOGY
ISSN
 0301-5629 
Issue Date
2022-06
MeSH
Adolescent ; Child ; Fatty Liver* / diagnostic imaging ; Humans ; Retrospective Studies ; Transducers ; Ultrasonography
Keywords
Attenuation ; Diagnostic performance ; Fatty liver ; Non-alcoholic fatty liver disease ; Pediatric ; Ultrasonography ; Ultrasound-guided attenuation parameter
Abstract
We evaluated the measurement feasibility and diagnostic ability of an ultrasound-guided attenuation parameter (UGAP) using a high-frequency convex transducer in children. This retrospective study included all consecutive children who underwent abdomen ultrasonography from July to December 2020. Attenuation coefficients (ACs) of the liver were measured using both 1- to 6-MHz (AC1-6) and 2- to 9-MHz (AC2-9) probes of the LOGIQ E10 system (GE Healthcare). t-Tests and Pearson's or partial correlation analyses were performed, and AC cutoff values for diagnosing fatty liver were obtained from receiver operating characteristic curve analyses. Finally, 118 patients (M:F = 83:35, mean age: 10.2 ± 4.1 y) were evaluated, and the measurement success rate was 98.3% (116/118) for AC2-9. AC1-6 was available in children with a liver depth greater than 9 cm. The ratio of interquartile range to median of the AC2-9 was lower than that of the AC1-6 (4.3 vs. 8.5, p < 0.001). In the normal group (n = 41), the AC2-9 values were not associated with age, sex or body mass index. For the evaluation of steatosis, the AC2-9 values exhibited a positive correlation with the MR fat fraction (coefficient = 0.498, p < 0.001). The cutoff value of 0.699 dB/cm/MHz had 90.2% sensitivity and 100% specificity for diagnosing fatty liver. In conclusion, measurements of ACs using a high-frequency convex transducer are feasible even in small children, with lower measurement variability. The AC2-9 values also had good diagnostic performance for pediatric fatty liver.
Full Text
https://www.sciencedirect.com/science/article/pii/S0301562922000709?via%3Dihub
DOI
10.1016/j.ultrasmedbio.2022.02.005
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Pediatrics (소아과학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Radiology (영상의학교실) > 1. Journal Papers
Yonsei Authors
Koh, Hong(고홍) ORCID logo https://orcid.org/0000-0002-3660-7483
Kim, Jisoo(김지수)
Yoon, Haesung(윤혜성) ORCID logo https://orcid.org/0000-0003-0581-8656
Lee, Mi-Jung(이미정) ORCID logo https://orcid.org/0000-0003-3244-9171
Lim, Hyun Ji(임현지)
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/188749
사서에게 알리기
  feedback

qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse

Links