Staging of hepatic fibrosis: comparison of magnetic resonance elastography and shear wave elastography in the same individuals

To cross-validate liver stiffness (LS) measured on shear wave elastography (SWE) and on magnetic resonance elastography (MRE) in the same individuals. We included 94 liver transplantation (LT) recipients and 114 liver donors who underwent either MRE or SWE before surgery or biopsy. We determined the...

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Published in:Korean journal of radiology 2013, 14(2), , pp.202-212
Main Authors: Yoon, Jeong Hee, Lee, Jeong Min, Woo, Hyun Sik, Yu, Mi Hye, Joo, Ijin, Lee, Eun Sun, Sohn, Ji Young, Lee, Kyung Boon, Han, Joon Koo, Choi, Byung Ihn
Format: Article
Language:English
Subjects:
Adolescent
Adult
Age
Biopsy
Elasticity Imaging Techniques - methods
Female
Gastrointestinal Imaging
Hepatitis
Humans
Linear Models
Liver cancer
Liver cirrhosis
Liver Cirrhosis - diagnosis
Liver Cirrhosis - diagnostic imaging
Liver diseases
Liver Transplantation
Living Donors
Magnetic Resonance Imaging
Male
Middle Aged
Patients
ROC Curve
Sensitivity and Specificity
Success
방사선과학
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Summary:To cross-validate liver stiffness (LS) measured on shear wave elastography (SWE) and on magnetic resonance elastography (MRE) in the same individuals. We included 94 liver transplantation (LT) recipients and 114 liver donors who underwent either MRE or SWE before surgery or biopsy. We determined the technical success rates and the incidence of unreliable LS measurements (LSM) of SWE and MRE. Among the 69 patients who underwent both MRE and SWE, the median and coefficient of variation (CV) of the LSM from each examination were compared and correlated. Areas under the receiver operating characteristic curve in both examinations were calculated in order to exclude the presence of hepatic fibrosis (HF). The technical success rates of MRE and SWE were 96.4% and 92.2%, respectively (p = 0.17), and all of the technical failures occurred in LT recipients. SWE showed 13.1% unreliable LSM, whereas MRE showed no such case (p < 0.05). There was moderate correlation in the LSM in both examinations (r = 0.67). SWE showed a significantly larger median LSM and CV than MRE. Both examinations showed similar diagnostic performance for excluding HF (Az; 0.989, 1.000, respectively). MRE and SWE show moderate correlation in their LSMs, although SWE shows higher incidence of unreliable LSMs in cirrhotic liver.
ISSN:1229-6929
2005-8330
DOI:10.3348/kjr.2013.14.2.202