Abstract #1157
Diagnostic performance of 68Ga-PSMA-PET/MRI versus 68Ga-PSMA-PET/CT in the evaluation of lymph node and bone metastases of prostate cancer
Martin Thomas Freitag 1 , Jan Radtke 1,2 , Boris Hadaschik 2 , Uwe Haberkorn 3 , Heinz-Peter Schlemmer 1 , Matthias Roethke 1 , and Ali Afshar-Oromieh 3
1
Department of Radiology, German Cancer
Research Center, Heidelberg, Baden-Wuerttemberg,
Germany,
2
Department
of Urology, University hospital of Heidelberg,
Heidelberg, Baden-Wuerttemberg, Germany,
3
Department
of Nuclear Medicine, University hospital of Heidelberg,
Heidelberg, Baden-Wuerttemberg, Germany
The recently introduced 68Gallium-PSMA-ligand is
regarded as a significant step forward in the diagnosis
of prostate cancer and its metastases for PET
examinations. Multiparametric PET/MR could be
advantageous over PET/CT to better delineate
PET-positive findings due to higher soft tissue
contrast. Here, we systematically compare the diagnostic
performance of multiparametric PET/MRI versus PET/CT
with focus on bone and lymph node metastases of prostate
cancer. PET-positive results were significantly
correlating between both methods indicating a strong
reliability of PET-measurements using 68Ga-PSMA-PET/MRI.
For the delineation of lymph nodes, PET/MRI was superior
to PET/CT whereas the conspicuity of bone metastases was
comparable.
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