Intra-individual comparison of 18F-PSMA-1007 and 18F-DCFPyL PET/CT in the prospective evaluation of patients with newly diagnosed prostate carcinoma: a pilot study
Introduction: The introduction of 18F-labelled prostate-specific membrane antigen (PSMA) targeted positron emission tomography/computed-tomography (PET/CT) tracers, firstly 18F-DCFPyL and more recently 18F-PSMA-1007, have demonstrated promising results for the diagnostic workup of prostate cancer (P...
Gespeichert in:
| Hauptverfasser: | , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
2018
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| In: |
Journal of nuclear medicine technology
Year: 2018, Jahrgang: 59, Heft: 7, Pages: 1076-1080 |
| ISSN: | 1535-5675 |
| DOI: | 10.2967/jnumed.117.204669 |
| Online-Zugang: | Verlag, Volltext: http://dx.doi.org/10.2967/jnumed.117.204669 Verlag, Volltext: http://jnm.snmjournals.org/content/early/2017/12/20/jnumed.117.204669 
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| Verfasserangaben: | Frederik Giesel, Leon Will, Ismaheel Lawal, Thabo Lengana, Clemens Kratochwil, Mariza Vorster, Oliver Neels, Florette Reyneke, Uwe Haberkon, Klaus Kopka, and Mike Sathekge |
MARC
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| 245 | 1 | 0 | |a Intra-individual comparison of 18F-PSMA-1007 and 18F-DCFPyL PET/CT in the prospective evaluation of patients with newly diagnosed prostate carcinoma |b a pilot study |c Frederik Giesel, Leon Will, Ismaheel Lawal, Thabo Lengana, Clemens Kratochwil, Mariza Vorster, Oliver Neels, Florette Reyneke, Uwe Haberkon, Klaus Kopka, and Mike Sathekge |
| 246 | 3 | 3 | |a Intra-individual comparison of 18 F-PSMA-1007 and 18 F-DCFPyL PET/CT in the prospective evaluation of patients with newly diagnosed prostate carcinoma |
| 264 | 1 | |c 2018 | |
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| 520 | |a Introduction: The introduction of 18F-labelled prostate-specific membrane antigen (PSMA) targeted positron emission tomography/computed-tomography (PET/CT) tracers, firstly 18F-DCFPyL and more recently 18F-PSMA-1007, have demonstrated promising results for the diagnostic workup of prostate cancer (PCa). This clinical study presents an intra-individual comparison to evaluate tracer-specific characteristics of 18F-DCFPyL versus 18F-PSMA-1007. Methods: Twelve prostate cancer patients, drug naive or prior to surgery, received similar activities of about 250 MBq 18F-DCFPyL and 18F-PSMA-1007 48 h apart and were imaged 2 h p.i. in the same PET/CT-scanner using the same reconstruction-algorithm. Normal organ biodistribution and tumor uptakes were quantified using SUVmax. Results: PSMA-positive lesions were detected in twelve out of twelve PCa patients. Both tracers, 18F-DCFPyL and 18F-PSMA-1007, detected the identical lesions. No statistical significance could be observed when comparing the SUVmax of 18F-DCFPyL and 18F-PSMA-1007 for local tumor, lymph node metastases and bone metastases. With regard to normal organs, 18F-DCFPyL presented statistically significant higher uptake in kidneys, urinary bladder and lacrimal gland. Vice versa, significantly higher uptake of 18F-PSMA-1007 in muscle, submandibular and sublingual gland, spleen, pancreas, liver and gallbladder was observed. Conclusion: Excellent imaging quality was achieved with both 18F-DCFPyL and 18F-PSMA-1007 resulting in identical clinical findings for the evaluated routine situations. Non-urinary excretion of 18F-PSMA-1007 might present some advantage with regard to delineation of local recurrence or pelvic lymph-node metastasis in selective patients; the lower hepatic background might favor 18F-DCFPyL in very late stages when rare cases of liver metastases can occur. | ||
| 650 | 4 | |a 18F-DCFPyL | |
| 650 | 4 | |a 18F-PSMA-1007 | |
| 650 | 4 | |a Molecular Imaging | |
| 650 | 4 | |a Oncology: GU | |
| 650 | 4 | |a PET/CT | |
| 650 | 4 | |a Prostate carcinoma | |
| 650 | 4 | |a PSMA | |
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