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Detection of hepatocellular carcinoma by ferumoxides-enhanced MR imaging in cirrhosis: Incremental value of dynamic gadolinium-enhancement.
- Source :
-
Journal of magnetic resonance imaging : JMRI [J Magn Reson Imaging] 2006 Jan; Vol. 23 (1), pp. 17-22. - Publication Year :
- 2006
-
Abstract
- Purpose: To investigate the incremental value of dynamic gadolinium-enhancement performed immediately after ferumoxides-enhanced magnetic resonance (MR) imaging on the detection of hepatocellular carcinoma in patients with cirrhosis.<br />Materials and Methods: We retrospectively reviewed MR scans of 62 cirrhotic patients over a two-year period. Sequences included ferumoxides-enhanced T2-weighted fast spin echo followed by dynamic gadolinium-enhanced T1-weighted spoiled gradient echo. Two readers independently documented the presence of hepatocellular carcinoma on a three-point confidence scale, without and with gadolinium-enhanced images. The presence or absence of hepatocellular carcinoma was established by histopathology (58 patients) or follow-up imaging (four patients) over a mean period of nine months.<br />Results: A total of 71 hepatocellular carcinomas were found in 42 patients. There was no statistically significant difference in sensitivity for the diagnosis of hepatocellular carcinoma without vs. with gadolinium-enhanced images (68% vs. 74% for reader 1 and 62% vs. 73% for reader 2, respectively, P > 1.3). However, both readers showed a lower mean confidence for tumor detection without vs. with gadolinium-enhanced images (2.3 vs. 2.7 for reader 1, 2.3 vs. 2.9 for reader 2, P < 0.01).<br />Conclusion: In our study, the addition of dynamic gadolinium-enhancement to ferumoxides-enhanced MR imaging did not improve hepatocellular carcinoma detection, but the addition of gadolinium-enhancement is recommended if ferumoxides-enhanced imaging is used because it increased reader confidence.
- Subjects :
- Adolescent
Adult
Aged
Carcinoma, Hepatocellular complications
Dextrans
Female
Ferrosoferric Oxide
Humans
Liver Neoplasms complications
Magnetite Nanoparticles
Male
Middle Aged
Retrospective Studies
Sensitivity and Specificity
Carcinoma, Hepatocellular diagnosis
Gadolinium DTPA
Iron
Liver Cirrhosis complications
Liver Neoplasms diagnosis
Magnetic Resonance Imaging methods
Oxides
Subjects
Details
- Language :
- English
- ISSN :
- 1053-1807
- Volume :
- 23
- Issue :
- 1
- Database :
- MEDLINE
- Journal :
- Journal of magnetic resonance imaging : JMRI
- Publication Type :
- Academic Journal
- Accession number :
- 16315209
- Full Text :
- https://doi.org/10.1002/jmri.20449