Qualitative and quantitative image analysis of CT and MR imaging in patients with neuroendocrine liver metastases in comparison to 68Ga-DOTATOC PET
Purpose - To compare lesion conspicuity in patients with liver metastases arising from gastroenteropancreatic neuroendocrine tumors (GEP-NETs) using MRI, PET and CT. - Materials and methods - 16 patients with GEP-NETs were evaluated using non-contrast MRI, contrast-enhanced (CE) MRI using Gd-EOB-DTP...
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| Hauptverfasser: | , , , , , , , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
8 May 2015
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| In: |
European journal of radiology
Year: 2015, Jahrgang: 84, Heft: 8, Pages: 1593-1600 |
| ISSN: | 1872-7727 |
| DOI: | 10.1016/j.ejrad.2015.04.009 |
| Online-Zugang: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1016/j.ejrad.2015.04.009 Verlag, lizenzpflichtig, Volltext: http://www.sciencedirect.com/science/article/pii/S0720048X15001837 
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| Verfasserangaben: | Paul Flechsig, Christian M. Zechmann, Julian Schreiweis, Clemens Kratochwil, Daniel Rath, Lawrence H. Schwartz, Heinz-Peter Schlemmer, Hans-Ulrich Kauczor, Uwe Haberkorn, Frederik L. Giesel |
MARC
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| 245 | 1 | 0 | |a Qualitative and quantitative image analysis of CT and MR imaging in patients with neuroendocrine liver metastases in comparison to 68Ga-DOTATOC PET |c Paul Flechsig, Christian M. Zechmann, Julian Schreiweis, Clemens Kratochwil, Daniel Rath, Lawrence H. Schwartz, Heinz-Peter Schlemmer, Hans-Ulrich Kauczor, Uwe Haberkorn, Frederik L. Giesel |
| 246 | 3 | 3 | |a Qualitative and quantitative image analysis of CT and MR imaging in patients with neuroendocrine liver metastases in comparison to 68 Ga-DOTATOC PET |
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| 520 | |a Purpose - To compare lesion conspicuity in patients with liver metastases arising from gastroenteropancreatic neuroendocrine tumors (GEP-NETs) using MRI, PET and CT. - Materials and methods - 16 patients with GEP-NETs were evaluated using non-contrast MRI, contrast-enhanced (CE) MRI using Gd-EOB-DTPA and CE-68Ga-DOTATOC PET. Quantitative analyses were performed by two blinded readers using ROI-analyses quantifying contrast ratios (CR) between normal liver-tissue and GEP-NET-metastases. Qualitative analyses were performed evaluating primary visibility and spatial detectability of all lesions. - Results - 103 of the same liver metastases were detected on all modalities. Qualitatively, lesion conspicuity was superior on CE-MRI imaging compared to non-contrast MR-sequences (T2, DWI, fl2D, fl3D), as well as arterial- and portal-venous phase CT. Concerning detectability of lesions, CE-MRI was superior to all other modalities. The quantitative ROI-analysis demonstrated improved CR for DWI compared to all other non-contrast MR-sequences (p<0.001). CE-MRI presented with higher CR-values compared to CE-68Ga-DOTATOC PET/CT (p<0.001). - Conclusions - Anatomic imaging using non contrast MRI with fl2D-and fl3D-sequences in combination with the molecular imaging modality 68Ga-DOTATOC PET is optimal for the assessment of liver lesions in GEP-NET-patients. Even though CE-MRI was superior to non-contrast MRI, non-contrast MRI is sufficient to detect and quantify liver metastases in daily routine, especially in combination with DW-Imaging. | ||
| 650 | 4 | |a Computed tomography | |
| 650 | 4 | |a Gastroenteropancreatic neuroendocrine tumors | |
| 650 | 4 | |a Magnetic resonance imaging | |
| 650 | 4 | |a Metastasis | |
| 650 | 4 | |a Positron emission tomography | |
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