Use of magnetic resonance elastography for assessing liver functional reserve: A clinical study.
World J Gastroenterol
; 21(24): 7522-8, 2015 Jun 28.
Article
in En
| MEDLINE
| ID: mdl-26139999
ABSTRACT
AIM:
To investigate the value of magnetic resonance elastography (MRE) with regard to assessing liver functional reserve.METHODS:
Data from inpatients diagnosed with a liver tumor at an interventional radiology department from July 2013 to June 2014 were analyzed. A 3.0 Tesla magnetic resonance unit was used to scan 32 patients with confirmed diagnoses of hepatocellular carcinoma (HCC); an MRE sequence was added to the protocol, and the data were reconstructed and analyzed by two attending radiologists. Regions of interest were identified in different slices of the non-tumor liver parenchyma to measure average stiffness. In addition, the indocyanine green (ICG) test was performed no more than 1 wk before or after the magnetic resonance examination for all 32 patients; the ICG retention rate at 15 min (ICGR-15) and the ICG plasma clearance rate (ICG-K) were recorded. Correlational analyses were performed between the liver stiffness values and the ICGR-15 as well as between the liver stiffness values and the ICG-K.RESULTS:
Magnetic resonance imaging, including an MRE sequence and the ICG test, was performed successfully in all 32 enrolled patients. None of the patients developed complications. The mean ± SD of the elasticity values measured by the two attending radiologists were 4.7 ± 2.2 kPa and 4.7 ± 2.1 kPa, respectively. The average liver stiffness value of the non-tumor parenchyma measured using MRE in HCC patients was 4.7 ± 2.2 kPa. The average ICGR-15 was 0.089 ± 0.077, and the average ICG-K was 0.19 ± 0.07. We found that the liver stiffness value of the non-tumor parenchyma was significantly and positively related to the ICGR-15 (r = 0.746, P < 0.01) as well as significantly and negatively related to the ICG-K (r = -0.599, P < 0.01). The ICGR-15 was significantly and negatively related to the ICG-K (r = -0.852, P < 0.01).CONCLUSION:
MRE is accurate and non-invasive; furthermore, it can be used to effectively assess the liver functional reserve of HCC patients.Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Magnetic Resonance Imaging
/
Carcinoma, Hepatocellular
/
Elasticity Imaging Techniques
/
Liver
/
Liver Function Tests
/
Liver Neoplasms
Type of study:
Diagnostic_studies
/
Guideline
/
Prognostic_studies
Limits:
Adult
/
Aged
/
Female
/
Humans
/
Male
/
Middle aged
Language:
En
Journal:
World J Gastroenterol
Journal subject:
GASTROENTEROLOGIA
Year:
2015
Document type:
Article
Affiliation country:
China