Imaging prostate cancer and metastases either by morphologic radiological approach or nuclear medicine methods has not fulfilled the expectations of the clinicians until several years. PSMA—prostate-specific membrane antigen—which can be labeled with positron-emitting isotopes mostly 68Ga—changed this setting substantially. Prostate cancer is the most common tumor entity in men worldwide and the third leading cause of cancer-related death in men in Europe and the USA. Biochemical relapse is a frequent event after primary therapy. A large body of evidence is available for restaging of prostate cancer patients with biochemical recurrence. 68Ga-PSMA PET/CT demonstrates high detection rates in patients with biochemical recurrence of prostate cancer after primary radiation therapy as well as after radical prostatectomy. 68Ga-PSMA PET has also been used for radiotherapy planning. Compared to conventional CT, PSMA PET/CT had a remarkable impact on radiotherapeutic approach especially in postoperative patients. PSMA is an ideal structure for both imaging and targeted therapy for prostate cancer, therefore enabling a theranostic approach.
Keywords68Gallium Prostate-specific membrane antigen PSMA Prostate cancer PET PET/CT Biochemical relapse PSA Prostatectomy
68Ga-prostate-specific membrane antigen
Positron emission tomography/ computed tomography
Positron emission tomography/magnetic resonance imaging
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