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Updated: Aug 17, 2026
Evaluation of the Feasibility, Safety, and Accuracy of an Intraoperative High-intensity Focused Ultrasound Device for Treating Liver Metastases
Published on: January 9, 2019
Effectiveness of MR imaging in characterizing small hepatic lesions: routine versus expert interpretation
Gisela C Mueller1, Hero K Hussain, Ruth C Carlos
1Department of Radiology/MRI B2B311, University of Michigan Health System, 1500 E. Medical Center Dr., Ann Arbor, MI 48109-0030, USA.
Objective:
The aim of our study was to compare the effectiveness of MR imaging characterization of small (
Materials And Methods:
Forty-eight patients with 69 small (
Results:
Fifty-eight lesions were benign (six cysts, 22 hemangiomas, four regenerating nodules, two steatohepatitic lesions, one atypical blood vessel, three focal fat and five focal fat-sparing lesions, 13 flow-related pseudolesions, one diaphragmatic insertion, and one unspecified lesion), and 11 lesions were malignant (nine metastases and two hepatocellular carcinoma). The areas under the curve were 0.94 (initial reports), 0.88 (observer 1), and 0.84 (observer 2). Substantial agreement was found between the expert interpreters (kappa = 0.74), and moderate agreement, between the expert interpreters and initial interpreters (kappa = 0.44 each).
Conclusion:
MR imaging is an effective method of characterizing small (
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