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Detection and characterization of benign focal liver lesions with multislice CT

  • Hepatobiliary-Pancreas
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Abstract

MDCT is a rapidly evolving technique that significantly improves CT imaging for several indications including depiction of focal benign lesions. Imaging mainly profits from improved longitudinal spatial resolution allowing high-quality non-axial reformations and 3D reconstructions and CT angiography as well as rapid accurate multiphase imaging with short breath-holding periods. This review provides an overview of the current status of MDCT with respect to liver imaging and the implications for characterizing benign focal liver lesions. MDCT currently allows the acquisition of thin slices in daily routine diagnostics providing an improved detection rate of small liver lesions. Whereas large benign focal liver lesions exhibit typical patterns of morphology, attenuation and perfusion, which also may be assessed with single-slice scanners, small lesions remain challenging even with MDCT, since the specific criteria for confident diagnosis become more ambiguous. Here, MR imaging provides more detailed information about tissue components and the availability of liver-specific contrast agents, adding further impact to this technique. With respect to dose considerations, the number of necessary multiphase scans as well as the application of very thin collimation should be strictly checked for each patient undergoing MDCT based on the individual clinical situation and question.

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  1. Department of Diagnostic Radiology, Hugstetter Str. 55, D-79106, Freiburg, Germany

    J. T. Winterer, E. Kotter, N. Ghanem & M. Langer

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  1. J. T. Winterer
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Winterer, J.T., Kotter, E., Ghanem, N. et al. Detection and characterization of benign focal liver lesions with multislice CT. Eur Radiol 16, 2427–2443 (2006). https://doi.org/10.1007/s00330-006-0247-9

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