specificity of 82%, and an accuracy of 88%, with a value Purpose: To describe the findings of magnetic resonance of the area under the ROC curve of 0.931. (MR) imaging of hepatic neuroendocrine tumors Conclusion: Using these specific MR imaging criteria, (hNET) and to identify the features that differentiate secondary hNETs could be differentiated from primary secondary from primary tumors. hNETs with a high degree of accuracy in patients with Methods: This retrospective study was approved by the histopathologically proven hNETs. institutional review board, and the requirement for informed consent was waived. Between August 2008 Key words: Liver—Neuroendocrine tumor—Magnetic and December 2014, 50 patients with pathologically resonance imaging—Diagnosis—Imaging criteria proven hNETs who underwent gadoxetic acid-enhanced MR imaging with diffusion-weighted images were included. The patients were divided into two groups Abbreviations according to whether they had primary (n = 17) or NET Neuroendocrine tumor secondary (n = 33) hNETs. Qualitative values based on WHO World Health Organization a consensus between two observers [morphologic find- CT Computed tomography ings, signal intensity, and enhancement pattern (poor or MR Magnetic resonance indeterminate; hepatocellular carcinoma-like or cholan- PET Positron-emission tomography giocarcinoma-like)], and quantitative values (apparent DWI Diffusion-weighted image diffusion coefficient) were evaluated as predictors
Abdominal Radiology – Springer Journals
Published: Jun 1, 2018
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