Staging of Hepatic Fibrosis: Comparison of Magnetic Resonance Elastography and Shear Wave Elastography in the Same Individuals
Korean Journal of Radiology
;
: 202-212, 2013.
Article
in English
| WPRIM
| ID: wpr-15368
ABSTRACT
OBJECTIVE:
To cross-validate liver stiffness (LS) measured on shear wave elastography (SWE) and on magnetic resonance elastography (MRE) in the same individuals. MATERIALS ANDMETHODS:
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).RESULTS:
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).CONCLUSION:
MRE and SWE show moderate correlation in their LSMs, although SWE shows higher incidence of unreliable LSMs in cirrhotic liver.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Magnetic Resonance Imaging
/
Linear Models
/
ROC Curve
/
Sensitivity and Specificity
/
Liver Transplantation
/
Living Donors
/
Elasticity Imaging Techniques
/
Liver Cirrhosis
Type of study:
Diagnostic study
/
Prognostic study
Limits:
Adolescent
/
Adult
/
Female
/
Humans
/
Male
Language:
English
Journal:
Korean Journal of Radiology
Year:
2013
Type:
Article
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