Publication Type:Journal Article
Source:J Magn Reson Imaging, Volume 12, Number 5, p.689-701 (2000)
Keywords:*Contrast Media, *Image Enhancement, Adult, Aged, Aged, 80 and over, Comparative Study, Diagnosis, Differential, Edetic Acid/adverse effects/*analogs & derivatives/diagnostic use, Female, Human, Injections, Intravenous, Liver Cirrhosis/*diagnosis, Liver Neoplasms/*diagnosis, Magnetic Resonance Imaging/*methods, Male, Middle Age, Pyridoxal Phosphate/adverse effects/*analogs & derivatives/diagnostic use, Sensitivity and Specificity
The efficacy of contrast-enhanced magnetic resonance imaging (MRI) for detecting and characterizing, or excluding, hepatic masses was assessed in 404 patients, following the intravenous administration of mangafodipir trisodium (MnDPDP) injection, a hepatic MRI contrast agent. An initial contrast-enhanced computed tomography (CT) examination was followed by unenhanced MRI, injection of MnDPDP (5 micromol/kg IV), and enhanced MRI at 15 minutes post injection. Agreement of the radiologic diagnoses with the patients' final diagnoses was higher for enhanced MRI and for the combined unenhanced and enhanced MRI evaluations than for unenhanced MRI alone or enhanced CT using the clinical diagnosis as the gold standard. Mangafodipir-enhanced MRI uniquely provided additional diagnostic information in 48% of the patients, and patient management was consequently altered in 6% of the patients. MnDPDP-enhanced MRI was comparable or superior to unenhanced MRI and enhanced CT for the detection, classification, and diagnosis of focal liver lesions in patients with known or suspected focal liver disease.