Objectives
To evaluate the safety of gadoxetic acid disodium (Gd-EOB-DTPA) magnetic resonance imaging (MRI) and its efficacy in characterizing liver lesions.
Methods
Lesion characterization and classification using combined (unenhanced and Gd-EOB-DTPA–enhanced) MRI were compared with those using unenhanced MRI and contrast-enhanced spiral computed tomography (CT) using on-site clinical and off-site blinded evaluations for patients with focal liver lesions.
Results
Gadoxetic acid disodium was well tolerated in this study. For the clinical evaluation, more lesions were correctly characterized using combined (unenhanced and Gd-EOB-DTPA–enhanced) MRI than using unenhanced MRI and spiral CT (96% vs 84% and 85%, respectively; P ≤ 0.0008). For the blinded evaluation, more lesions were correctly characterized using combined MRI compared with using unenhanced MRI (61%–76% vs 48%–65%, respectively; P ≤ 0.0012 for 2/3 readers); when compared with spiral CT, a similar proportion of lesions were correctly characterized.
Conclusions
Gadoxetic acid disodium–enhanced MRI is of clinical benefit relative to unenhanced MRI and spiral CT for a radiological diagnosis of liver lesions.
MRCP can accurately and noninvasively delineate PB ductal anatomy and diagnose PB neoplasms comparably to ERCP. MRCP is an interesting new noninvasive method for evaluating patients with suspected PB neoplasms.
Chronic axillary crutch use may be associated with axillary artery stenosis, aneurysm formation, and secondary axillobrachial thromboembolic disease. Mural injury can be successfully treated by PTA and thromboembolic disease by thrombolytic therapy. Early identification of the axillary artery lesion is critical for long-term therapeutic results.
Endoscopic magnetic resonance imaging of esophageal cancer diagnoses local staging that is comparable to endosonography. In future, the combination of endoscopic and conventional magnetic resonance scanning may provide comprehensive staging of esophageal cancer.
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