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Linearity, Bias, and Precision of Hepatic Proton Density Fat Fraction Measurements by Using MR Imaging: A Meta-Analysis.

Purpose To determine the linearity, bias, and precision of hepatic proton density fat fraction (PDFF) measurements by using magnetic resonance (MR) imaging across different field strengths, imager manufacturers, and reconstruction methods. Materials and Methods This meta-analysis was performed in ac... Full description

Journal Title: Radiology February 2018, Vol.286(2), pp.486-498
Main Author: Yokoo, Takeshi
Other Authors: Serai, Suraj D , Pirasteh, Ali , Bashir, Mustafa R , Hamilton, Gavin , Hernando, Diego , Hu, Houchun H , Hetterich, Holger , Kühn, Jens-Peter , Kukuk, Guido M , Loomba, Rohit , Middleton, Michael S , Obuchowski, Nancy A , Song, Ji Soo , Tang, An , Wu, Xinhuai , Reeder, Scott B , Sirlin, Claude B , Yokoo, Takeshi
Format: Electronic Article Electronic Article
Language: English
Subjects:
ID: E-ISSN: 1527-1315 ; DOI: 10.1148/radiol.2017170550
Link: http://search.proquest.com/docview/1938188949/?pq-origsite=primo
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title: Linearity, Bias, and Precision of Hepatic Proton Density Fat Fraction Measurements by Using MR Imaging: A Meta-Analysis.
format: Article
creator:
  • Yokoo, Takeshi
  • Serai, Suraj D
  • Pirasteh, Ali
  • Bashir, Mustafa R
  • Hamilton, Gavin
  • Hernando, Diego
  • Hu, Houchun H
  • Hetterich, Holger
  • Kühn, Jens-Peter
  • Kukuk, Guido M
  • Loomba, Rohit
  • Middleton, Michael S
  • Obuchowski, Nancy A
  • Song, Ji Soo
  • Tang, An
  • Wu, Xinhuai
  • Reeder, Scott B
  • Sirlin, Claude B
  • Yokoo, Takeshi
subjects:
  • Adipose Tissue–Pathology
  • Adolescent–Pathology
  • Adult–Instrumentation
  • Aged–Standards
  • Aged, 80 and Over–Instrumentation
  • Child–Methods
  • Female–Pathology
  • Humans–Pathology
  • Liver–Pathology
  • Magnetic Resonance Imaging–Pathology
  • Magnetic Resonance Spectroscopy–Pathology
  • Male–Pathology
  • Middle Aged–Pathology
  • Non-Alcoholic Fatty Liver Disease–Pathology
  • Protons–Pathology
  • Publication Bias–Pathology
  • Sensitivity and Specificity–Pathology
  • Young Adult–Pathology
  • Abridged
  • Protons
ispartof: Radiology, February 2018, Vol.286(2), pp.486-498
description: Purpose To determine the linearity, bias, and precision of hepatic proton density fat fraction (PDFF) measurements by using magnetic resonance (MR) imaging across different field strengths, imager manufacturers, and reconstruction methods. Materials and Methods This meta-analysis was performed in accordance with Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. A systematic literature search identified studies that evaluated the linearity and/or bias of hepatic PDFF measurements by using MR imaging (hereafter, MR imaging-PDFF) against PDFF measurements by using colocalized MR spectroscopy (hereafter, MR spectroscopy-PDFF) or the precision of MR imaging-PDFF. The quality of each study was evaluated by using the Quality Assessment of Studies of Diagnostic Accuracy 2 tool. De-identified original data sets from the selected studies were pooled. Linearity was evaluated by using linear regression between MR imaging-PDFF and MR spectroscopy-PDFF measurements. Bias, defined as the mean difference between MR imaging-PDFF and MR spectroscopy-PDFF measurements, was evaluated by using Bland-Altman analysis. Precision, defined as the agreement between repeated MR imaging-PDFF measurements, was evaluated by using a linear mixed-effects model, with field strength, imager manufacturer, reconstruction method, and region of interest as random effects. Results Twenty-three studies (1679 participants) were selected for linearity and bias analyses and 11 studies (425 participants) were selected for precision analyses. MR imaging-PDFF was linear with MR spectroscopy-PDFF (R2 = 0.96). Regression slope (0.97; P < .001) and mean Bland-Altman bias (-0.13%; 95% limits of agreement: -3.95%, 3.40%) indicated minimal underestimation by using MR imaging-PDFF. MR imaging-PDFF was precise at the region-of-interest level, with repeatability and reproducibility coefficients of 2.99% and 4.12%, respectively. Field strength, imager manufacturer, and reconstruction method each had minimal effects on reproducibility. Conclusion MR imaging-PDFF has excellent linearity, bias, and precision across different field strengths, imager manufacturers, and reconstruction methods. © RSNA, 2017 Online supplemental material is available for this article. An earlier incorrect version of this article appeared online. This article was corrected on October 2, 2017.
language: eng
source:
identifier: E-ISSN: 1527-1315 ; DOI: 10.1148/radiol.2017170550
fulltext: fulltext
issn:
  • 15271315
  • 1527-1315
url: Link


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titleLinearity, Bias, and Precision of Hepatic Proton Density Fat Fraction Measurements by Using MR Imaging: A Meta-Analysis.
creatorYokoo, Takeshi ; Serai, Suraj D ; Pirasteh, Ali ; Bashir, Mustafa R ; Hamilton, Gavin ; Hernando, Diego ; Hu, Houchun H ; Hetterich, Holger ; Kühn, Jens-Peter ; Kukuk, Guido M ; Loomba, Rohit ; Middleton, Michael S ; Obuchowski, Nancy A ; Song, Ji Soo ; Tang, An ; Wu, Xinhuai ; Reeder, Scott B ; Sirlin, Claude B ; Yokoo, Takeshi
contributorYokoo, Takeshi (correspondence author) ; Yokoo, Takeshi (record owner)
ispartofRadiology, February 2018, Vol.286(2), pp.486-498
identifierE-ISSN: 1527-1315 ; DOI: 10.1148/radiol.2017170550
subjectAdipose Tissue–Pathology ; Adolescent–Pathology ; Adult–Instrumentation ; Aged–Standards ; Aged, 80 and Over–Instrumentation ; Child–Methods ; Female–Pathology ; Humans–Pathology ; Liver–Pathology ; Magnetic Resonance Imaging–Pathology ; Magnetic Resonance Spectroscopy–Pathology ; Male–Pathology ; Middle Aged–Pathology ; Non-Alcoholic Fatty Liver Disease–Pathology ; Protons–Pathology ; Publication Bias–Pathology ; Sensitivity and Specificity–Pathology ; Young Adult–Pathology ; Abridged ; Protons
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descriptionPurpose To determine the linearity, bias, and precision of hepatic proton density fat fraction (PDFF) measurements by using magnetic resonance (MR) imaging across different field strengths, imager manufacturers, and reconstruction methods. Materials and Methods This meta-analysis was performed in accordance with Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. A systematic literature search identified studies that evaluated the linearity and/or bias of hepatic PDFF measurements by using MR imaging (hereafter, MR imaging-PDFF) against PDFF measurements by using colocalized MR spectroscopy (hereafter, MR spectroscopy-PDFF) or the precision of MR imaging-PDFF. The quality of each study was evaluated by using the Quality Assessment of Studies of Diagnostic Accuracy 2 tool. De-identified original data sets from the selected studies were pooled. Linearity was evaluated by using linear regression between MR imaging-PDFF and MR spectroscopy-PDFF measurements. Bias, defined as the mean difference between MR imaging-PDFF and MR spectroscopy-PDFF measurements, was evaluated by using Bland-Altman analysis. Precision, defined as the agreement between repeated MR imaging-PDFF measurements, was evaluated by using a linear mixed-effects model, with field strength, imager manufacturer, reconstruction method, and region of interest as random effects. Results Twenty-three studies (1679 participants) were selected for linearity and bias analyses and 11 studies (425 participants) were selected for precision analyses. MR imaging-PDFF was linear with MR spectroscopy-PDFF (R2 = 0.96). Regression slope (0.97; P < .001) and mean Bland-Altman bias (-0.13%; 95% limits of agreement: -3.95%, 3.40%) indicated minimal underestimation by using MR imaging-PDFF. MR imaging-PDFF was precise at the region-of-interest level, with repeatability and reproducibility coefficients of 2.99% and 4.12%, respectively. Field strength, imager manufacturer, and reconstruction method each had minimal effects on reproducibility. Conclusion MR imaging-PDFF has excellent linearity, bias, and precision across different field strengths, imager manufacturers, and reconstruction methods. © RSNA, 2017 Online supplemental material is available for this article. An earlier incorrect version of this article appeared online. This article was corrected on October 2, 2017.
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titleLinearity, Bias, and Precision of Hepatic Proton Density Fat Fraction Measurements by Using MR Imaging: A Meta-Analysis.
authorYokoo, Takeshi ; Serai, Suraj D ; Pirasteh, Ali ; Bashir, Mustafa R ; Hamilton, Gavin ; Hernando, Diego ; Hu, Houchun H ; Hetterich, Holger ; Kühn, Jens-Peter ; Kukuk, Guido M ; Loomba, Rohit ; Middleton, Michael S ; Obuchowski, Nancy A ; Song, Ji Soo...
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