ArticleEJNMMI reports2025
Characterization of suspicious prostate lesions at multiparametric MRI with dynamic
Article in EJNMMI reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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13 authors.
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Abstract
backgroundProstate cancer (PCa) will affect approximately 12% of US men in their lifetime and remains the 2nd most common cause of cancer-specific death. However, there is a broad spectrum of severity of PCa; some require aggressive treatment and others can "watch-and-wait". Distinction of clinically significant prostate cancer (csPCa) from indolent PCA with current imaging methods remains challenging.
objectiveThis study aims to evaluate dynamic prostate specific membrane antigen (PSMA) positron emission tomography (PET/CT) in the characterization of suspicious prostate lesions identified on multiparametric MRI (mpMRI).
methodsProspective study of biopsy-naïve patients with at least one Prostate Imaging and Reporting Data System (PI-RADS) score 5 or one PI-RADS score 4 plus a prostate specific antigen (PSA) ≥ 10 ng/mL. Dynamic PET/CT was performed for 30 min after administration of
results19 PI-RADS v2.1 ≥ 4 and 6 secondary PI-RADS v2.1 ≥ 3 lesions in 19 patients were analyzed: 4 (16.0%) grade group (GG) 0 (benign), 3 (12.0%) GG 1, 6 (24.0%) GG 2, 6 (24.0%) GG 3, and 6 (24.0%) GG ≥ 4. Significant differences in slope values were observed between clinically insignificant disease (GG 0/1) and GG 2 or higher as early as 5 min post-injection (p < 0.05). At 30 min, GG 1 had the lowest mean slope (- 0.18 ± 0.57) and GG ≥ 4 exhibited the highest mean slope (2.35 ± 2.03). Slope value/ADC ratio further improved discrimination between different GGs.
conclusionsDynamic CLINICAL IMPLICATIONS: Dynamic
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