European journal of nuclear medicine and molecular imaging · 2016
68Ga-PSMA-HBED-CC PET imaging in breast carcinoma patients.
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Sathekge Mike, Lengana Thabo, Modiselle Moshe, Vorster Mariza, Zeevaart JanRijn, Maes Alex, Ebenhan Thomas, Van de Wiele Christophe
Аннотация
BACKGROUND: To report on imaging findings using 68Ga-PSMA-HBED-CC PET in a series of 19 breast carcinoma patients.
METHODS: 68Ga-PSMA-HBED-CC PET imaging results obtained were compared to routinely performed staging examinations and analyzed as to lesion location and progesterone receptor status.
RESULTS: Out of 81 tumor lesions identified, 84% were identified on 68Ga-PSMA-HBED-CC PET. 68Ga-PSMA-HBED-CC SUVmean values of distant metastases proved significantly higher (mean, 6.86, SD, 5.68) when compared to those of primary or local recurrences (mean, 2.45, SD, 2.55, p = 0.04) or involved lymph nodes (mean, 3.18, SD, 1.79, p = 0.011). SUVmean values of progesterone receptor-positive lesions proved not significantly different from progesterone receptor-negative lesions. SUV values derived from FDG PET/CT, available in seven patients, and 68Ga-PSMA-HBED-CC PET/CT imaging proved weakly correlated (r = 0.407, p = 0.015).
CONCLUSIONS: 68Ga-PSMA-HBED-CC PET/CT imaging in breast carcinoma confirms the reported considerable variation of PSMA expression on human solid tumors using immunohistochemistry.
METHODS: 68Ga-PSMA-HBED-CC PET imaging results obtained were compared to routinely performed staging examinations and analyzed as to lesion location and progesterone receptor status.
RESULTS: Out of 81 tumor lesions identified, 84% were identified on 68Ga-PSMA-HBED-CC PET. 68Ga-PSMA-HBED-CC SUVmean values of distant metastases proved significantly higher (mean, 6.86, SD, 5.68) when compared to those of primary or local recurrences (mean, 2.45, SD, 2.55, p = 0.04) or involved lymph nodes (mean, 3.18, SD, 1.79, p = 0.011). SUVmean values of progesterone receptor-positive lesions proved not significantly different from progesterone receptor-negative lesions. SUV values derived from FDG PET/CT, available in seven patients, and 68Ga-PSMA-HBED-CC PET/CT imaging proved weakly correlated (r = 0.407, p = 0.015).
CONCLUSIONS: 68Ga-PSMA-HBED-CC PET/CT imaging in breast carcinoma confirms the reported considerable variation of PSMA expression on human solid tumors using immunohistochemistry.