Speed of sound index for liver steatosis estimation: a reliability study in normal subjects.
PURPOSE Non-alcoholic fatty liver disease (NAFLD) is the most widespread type of chronic liver disease in the Western countries. Ultrasound (US) is widely used for NAFLD staging. The Resona 7 US system (Mindray Bio-Medical Electronics Co., Ltd.) includes an image optimization and speed of ultrasound...
| Publicado en: | Diagnostic & Interventional Radiology Vol. 28; no. 5; pp. 418 - 428 |
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| Autores principales: | , , , , , |
| Formato: | diagnostic images research tables/charts Journal Article |
| Publicado: |
Galenos Yayinevi Tic. LTD. STI
Sep2022
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=159741421&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 159741421 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 13053825 39NM jtl: Diagnostic & Interventional Radiology issn: 13053825 maglogo: N pubinfo: dt: Sep2022 vid: 28 iid: 5 pid: 28155 pub: Galenos Yayinevi Tic. LTD. STI artinfo: ui: 159741421 159741421 NLM36218147 159741421 10.5152/dir.2022.21019 NLM36218147 159741421 ppf: 418 ppct: 10 formats: fmt: @attributes: type: P tig: atl: Speed of sound index for liver steatosis estimation: a reliability study in normal subjects. aug: au: Gatos, Ilias Drazinos, Petros Loupas, Thanasis Yarmenitis, Spyros Koskinas, John Zoumpoulis, Pavlos S. affil: Department of Medical Physics, University of Patras, School of Medicine, Rion, Greece sug: subj: Nonalcoholic Fatty Liver Disease Ultrasonography Liver Reproducibility of Results Observer Bias Social Support Index Scales Human ab: PURPOSE Non-alcoholic fatty liver disease (NAFLD) is the most widespread type of chronic liver disease in the Western countries. Ultrasound (US) is widely used for NAFLD staging. The Resona 7 US system (Mindray Bio-Medical Electronics Co., Ltd.) includes an image optimization and speed of ultrasound-related feature, Sound Speed Index (SSI). SSI is applied in a region of interest (ROI) that could potentially aid in tissue characterization. The purpose of this study is to evaluate the reliability of SSI on various examination parameters on normal subjects. METHODS Twenty normal subjects were examined by two radiologists performing SSI measurements in the liver in different ROI depths and sizes. Intraclass correlation coefficient (ICC) was calculated to measure intra- and inter-observer variability and inter-ROI variability. RESULTS For all ROIs and both radiologists, the mean inter-observer ICC was 0.62 and the mean intraobserver ICC was 0.52 and 0.79. The mean SSI values for all ROIs and examiners were in the range 1528.79-1540.16 m/s. CONCLUSION The results indicate that SSI can lead to reliable measurements on normal subjects, independent of ROI size but dependent on ROI placement. More studies processing NAFLD patients, utilizing reference methods of liver fat quantification either for reliability or correlation with SSI, should be performed to further investigate the relevance of the SSI as a potential biomarker in clinical practice for liver steatosis grading. pubtype: Academic Journal doctype: diagnostic images research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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