1. Evaluation of hemodynamic imaging findings of hypervascular hepatocellular carcinoma: comparison between dynamic contrast-enhanced magnetic resonance imaging using radial volumetric imaging breath-hold examination with k-space-weighted image contrast reconstruction and dynamic computed tomography during hepatic arteriography.
- Author
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Kurozumi M, Fujinaga Y, Kitou Y, Yamada A, Ohya A, Adachi Y, Tsukahara Y, Nickel MD, Maruyama K, Uehara T, Miyagawa SI, and Kadoya M
- Subjects
- Aged, Breath Holding, Carcinoma, Hepatocellular blood supply, Carcinoma, Hepatocellular physiopathology, Female, Humans, Image Enhancement methods, Liver blood supply, Liver diagnostic imaging, Liver Neoplasms blood supply, Liver Neoplasms physiopathology, Male, Neovascularization, Pathologic diagnostic imaging, Reproducibility of Results, Retrospective Studies, Carcinoma, Hepatocellular diagnostic imaging, Computed Tomography Angiography methods, Contrast Media, Hemodynamics physiology, Image Processing, Computer-Assisted methods, Liver Neoplasms diagnostic imaging, Magnetic Resonance Imaging methods, Neovascularization, Pathologic physiopathology
- Abstract
Purpose: To compare the visualization of hemodynamic imaging findings of hypervascular hepatocellular carcinoma (HCC) on dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) using radial volumetric imaging breath-hold examination with k-space-weighted image contrast reconstruction (r-VIBE-KWIC) versus dynamic computed tomography during hepatic arteriography (dyn-CTHA)., Materials and Methods: We retrospectively reviewed the databases of preoperative DCE-MRI using r-VIBE-KWIC, dyn-CTHA, and postoperative pathology of resected specimens. Fourteen patients with 14 hypervascular HCCs underwent both DCE-MRI and dyn-CTHA. The imaging findings of the tumor and adjacent liver parenchyma were assessed on both modalities by two readers. The tumor enhancement time was also compared between the two modalities., Results: On DCE-MRI/dyn-CTHA, early staining, peritumoral low-intensity or low-density bands, corona enhancement, and washout of HCC were observed in 14/14 (100%), 10/12 (83%), 11/14 (78%), and 4/14 (29%) patients, respectively. Pathologically, four HCCs with low-density bands on dyn-CTHA had no fibrous capsules. The median tumor enhancement time on DCE-MRI and dyn-CTHA was 24 (9-24) and 23 (8-35) s, respectively. The correlation coefficient between the two groups was 0.762 (P < 0.002)., Conclusions: DCE-MRI using r-VIBE-KWIC has diagnostic potential comparable with that of dyn-CTHA in the hemodynamic evaluation of hypervascular HCC except for the washout phenomenon.
- Published
- 2018
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