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The Efficacy of MRI in the diagnostic workup of cystic fibrosis-associated liver disease: A clinical observational cohort study.

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Title: The Efficacy of MRI in the diagnostic workup of cystic fibrosis-associated liver disease: A clinical observational cohort study.
Authors: Poetter-Lang, Sarah1, Staufer, Katharina2, Baltzer, Pascal1, Tamandl, Dietmar1, Muin, Dina1, Bastati, Nina1, Halilbasic, Emina2, Hodge, Jacqueline C.1, Trauner, Michael2, Kazemi-Shirazi, Lili2, Ba-Ssalamah, Ahmed1 ahmed.ba-ssalamah@meduniwien.ac.at
Source: European Radiology. Feb2019, Vol. 29 Issue 2, p1048-1058. 11p. 3 Color Photographs, 2 Diagrams, 5 Charts, 1 Graph.
Subjects: Magnetic resonance imaging, Cystic fibrosis, Medical care, Ultrasonic imaging, Biopsy
Abstract: Purpose: To identify independent imaging features and establish a diagnostic algorithm for diagnosis of cystic fibrosis (CF)-associated liver disease (CFLD) in CF patients compared to controls using gadoxetic acid-enhanced MRI.Methods: A total of 90 adult patients were enrolled: 50 with CF, 40 controls. The CF group was composed of two subgroups: a retrospective test subgroup (n = 33) and a prospective validation subgroup (n = 17). Controls (patients with normal liver enzymes and only benign focal liver lesions) were divided accordingly (27:13). MRI variables, including quantitative and qualitative parameters, were used to distinguish CFLD from controls using clinical symptoms, laboratory tests and Debray criteria. Disease severity was classified according to Child-Pugh and Albumin-Bilirubin (ALBI) scores. Fifteen qualitative single-lesion CF descriptors were defined. Two readers independently evaluated the images. Univariate statistical analysis was performed to obtain significant imaging features that differentiate CF patients from controls. Through multivariate analysis using chi-squared automatic interaction detector (CHAID) methodology the most important descriptors were identified. Diagnostic performance was assessed by receiver-operating characteristic (ROC) analysis.Results: Three independent imaging descriptors distinguished CFLD from controls: (1) presence of altered gallbladder morphology; (2) periportal tracking; and (3) periportal fat deposition. Prospective validation of the classification algorithm demonstrated a sensitivity of 94.1% and specificity of 84.6% for discriminating CFLD from controls. Disease severity was well associated with the imaging features.Conclusions: A short unenhanced MRI protocol can identify the three cardinal imaging features of CFLD. The hepatobiliary phase of gadoxetic acid-enhanced MRI can define CFLD progression.Key Points: • Using a multivariate classification analysis, we identified three independent imaging features, altered gallbladder morphology (GBAM), periportal tracking (PPT) and periportal fat deposition (PPFD), that could diagnose CFLD with high sensitivity, 94.1 % (95% CI: 71.3-99.9) and moderate specificity, 84.6 % (95% CI: 54.6-98.1). • Based upon the results of this study, gadoxetic acid-enhanced MRI with DWI is able to diagnose early-stage CFLD, as well as its progression. [ABSTRACT FROM AUTHOR]
Copyright of European Radiology is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: The Efficacy of MRI in the diagnostic workup of cystic fibrosis-associated liver disease: A clinical observational cohort study.
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  Data: <searchLink fieldCode="AR" term="%22Poetter-Lang%2C+Sarah%22">Poetter-Lang, Sarah</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Staufer%2C+Katharina%22">Staufer, Katharina</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Baltzer%2C+Pascal%22">Baltzer, Pascal</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Tamandl%2C+Dietmar%22">Tamandl, Dietmar</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Muin%2C+Dina%22">Muin, Dina</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Bastati%2C+Nina%22">Bastati, Nina</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Halilbasic%2C+Emina%22">Halilbasic, Emina</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Hodge%2C+Jacqueline+C%2E%22">Hodge, Jacqueline C.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Trauner%2C+Michael%22">Trauner, Michael</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Kazemi-Shirazi%2C+Lili%22">Kazemi-Shirazi, Lili</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Ba-Ssalamah%2C+Ahmed%22">Ba-Ssalamah, Ahmed</searchLink><relatesTo>1</relatesTo><i> ahmed.ba-ssalamah@meduniwien.ac.at</i>
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  Data: <searchLink fieldCode="JN" term="%22European+Radiology%22">European Radiology</searchLink>. Feb2019, Vol. 29 Issue 2, p1048-1058. 11p. 3 Color Photographs, 2 Diagrams, 5 Charts, 1 Graph.
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  Data: <searchLink fieldCode="DE" term="%22Magnetic+resonance+imaging%22">Magnetic resonance imaging</searchLink><br /><searchLink fieldCode="DE" term="%22Cystic+fibrosis%22">Cystic fibrosis</searchLink><br /><searchLink fieldCode="DE" term="%22Medical+care%22">Medical care</searchLink><br /><searchLink fieldCode="DE" term="%22Ultrasonic+imaging%22">Ultrasonic imaging</searchLink><br /><searchLink fieldCode="DE" term="%22Biopsy%22">Biopsy</searchLink>
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  Data: <bold>Purpose: </bold>To identify independent imaging features and establish a diagnostic algorithm for diagnosis of cystic fibrosis (CF)-associated liver disease (CFLD) in CF patients compared to controls using gadoxetic acid-enhanced MRI.<bold>Methods: </bold>A total of 90 adult patients were enrolled: 50 with CF, 40 controls. The CF group was composed of two subgroups: a retrospective test subgroup (n = 33) and a prospective validation subgroup (n = 17). Controls (patients with normal liver enzymes and only benign focal liver lesions) were divided accordingly (27:13). MRI variables, including quantitative and qualitative parameters, were used to distinguish CFLD from controls using clinical symptoms, laboratory tests and Debray criteria. Disease severity was classified according to Child-Pugh and Albumin-Bilirubin (ALBI) scores. Fifteen qualitative single-lesion CF descriptors were defined. Two readers independently evaluated the images. Univariate statistical analysis was performed to obtain significant imaging features that differentiate CF patients from controls. Through multivariate analysis using chi-squared automatic interaction detector (CHAID) methodology the most important descriptors were identified. Diagnostic performance was assessed by receiver-operating characteristic (ROC) analysis.<bold>Results: </bold>Three independent imaging descriptors distinguished CFLD from controls: (1) presence of altered gallbladder morphology; (2) periportal tracking; and (3) periportal fat deposition. Prospective validation of the classification algorithm demonstrated a sensitivity of 94.1% and specificity of 84.6% for discriminating CFLD from controls. Disease severity was well associated with the imaging features.<bold>Conclusions: </bold>A short unenhanced MRI protocol can identify the three cardinal imaging features of CFLD. The hepatobiliary phase of gadoxetic acid-enhanced MRI can define CFLD progression.<bold>Key Points: </bold>• Using a multivariate classification analysis, we identified three independent imaging features, altered gallbladder morphology (GBAM), periportal tracking (PPT) and periportal fat deposition (PPFD), that could diagnose CFLD with high sensitivity, 94.1 % (95% CI: 71.3-99.9) and moderate specificity, 84.6 % (95% CI: 54.6-98.1). • Based upon the results of this study, gadoxetic acid-enhanced MRI with DWI is able to diagnose early-stage CFLD, as well as its progression. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of European Radiology is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1007/s00330-018-5650-5
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