In:
Urologia Internationalis, S. Karger AG, Vol. 100, No. 2 ( 2018), p. 164-171
Kurzfassung:
〈 b 〉 〈 i 〉 Purpose: 〈 /i 〉 〈 /b 〉 To evaluate diagnostic accuracy of integrated 〈 sup 〉 68 〈 /sup 〉 Gallium labelled prostate-specific membrane antigen ( 〈 sup 〉 68 〈 /sup 〉 Ga-PSMA)-11 positron emission tomography (PET)/MRI in patients with primary prostate cancer (PCa) as compared to multi-parametric MRI. 〈 b 〉 〈 i 〉 Material and Methods: 〈 /i 〉 〈 /b 〉 A total of 22 patients with recently diagnosed primary PCa underwent clinically indicated 〈 sup 〉 68 〈 /sup 〉 Ga-PSMA-11 PET/CT for initial staging followed by integrated 〈 sup 〉 68 〈 /sup 〉 Ga-PSMA-11 PET/MRI. Images of multi-parametric magnetic resonance imaging (mpMRI), PET and PET/MRI were evaluated separately by applying Prostate Imaging Reporting and Data System (PIRADSv2) for mpMRI and a 5-point Likert scale for PET and PET/MRI. Results were compared with pathology reports of biopsy or resection. Statistical analyses including receiver operating characteristics analysis were performed to compare the diagnostic performance of mpMRI, PET and PET/MRI. 〈 b 〉 〈 i 〉 Results: 〈 /i 〉 〈 /b 〉 PET and integrated PET/MRI demonstrated a higher diagnostic accuracy than mpMRI (area under the curve: mpMRI: 0.679, PET and PET/MRI: 0.951). The proportion of equivocal results (PIRADS 3 and Likert 3) was considerably higher in mpMRI than in PET and PET/MRI. In a notable proportion of equivocal PIRADS results, PET led to a correct shift towards higher suspicion of malignancy and enabled correct lesion classification. 〈 b 〉 〈 i 〉 Conclusion: 〈 /i 〉 〈 /b 〉 Integrated 〈 sup 〉 68 〈 /sup 〉 Ga-PSMA-11 PET/MRI demonstrates higher diagnostic accuracy than mpMRI and is particularly valuable in tumours with equivocal results from PIRADS classification.
Materialart:
Online-Ressource
ISSN:
0042-1138
,
1423-0399
Sprache:
Englisch
Verlag:
S. Karger AG
Publikationsdatum:
2018
ZDB Id:
1464417-4