Journals / İstanbul Medical Journal / 2021 / Cilt: 22 - Sayı: 1

Predictors of Clinically Significant Prostate Cancer: A Comparative Study of PSA, PSA Density, and MRI Parameters

Klinik Anlamlı Prostat Kanseri Belirteçleri: PSA, PSA Dansitesi ve MRG Bulgularının Karşılaştırılması

Pages
31–37
Publication Date
2022-10-19
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Lesions ≥10 mm were associated with the riskof clinically significant PCa, and this should be considered inreporting.

📌 3 Key Takeaways

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Objective & Hypothesis:Introduction: The purpose of this study was to compareprostate-specific antigen (PSA), PSA density (PSAd), the prostateimaging-reporting and data system (PI-RADS) score, and lesiondimension (four parameters) in clinically significant prostatecancer (PCa) detection.Methods: This study included 154 patients who underwentmulti-parametric prostate magnetic resonance imaging(mpMRI) and 12 quadrant systematic prostate biopsy between01/2018 and 03/2019.
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Key Findings & Data:Two radiologists used the PI-RADSversion 2.1 to describe the MRI findings by consensus.
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Conclusion & Impact:Lesions ≥10 mm were associated with the riskof clinically significant PCa, and this should be considered inreporting.
🔬Design:Research Article
📍Scope:2018 Verileri
⚙️Variables:Domain Parameters

Abstract

Introduction: The purpose of this study was to compareprostate-specific antigen (PSA), PSA density (PSAd), the prostateimaging-reporting and data system (PI-RADS) score, and lesiondimension (four parameters) in clinically significant prostatecancer (PCa) detection.Methods: This study included 154 patients who underwentmulti-parametric prostate magnetic resonance imaging(mpMRI) and 12 quadrant systematic prostate biopsy between01/2018 and 03/2019. Two radiologists used the PI-RADSversion 2.1 to describe the MRI findings by consensus. A Gleasonscore ≥3+4 was assessed as clinically significant PCa. Areasunder the curve (AUC) were calculated using receiver operatingcharacteristics. Youden’s index was used to determine idealcutoffs. DeLong’s test was used to evaluate statisticallysignificant differences between the four parameters.Results: The median age was 66 (±6.9) in this cohort. Themedian PSA level was 7.8 ng/dL (±18.4, 1.6-109.3), the medianPSAd was 0.146 ng/mL/cm3, and the median lesion dimensionwas 12 mm. In MRI, the number of cases with the PI-RADSscores from 1 to 5 were 34, 6, 11, 38, and 65, respectively. Interms of pathology, there was no tumor in 44 patients’ samples,while insignificant cancer and clinically significant PCa wereseen in 33 and 77, respectively. The AUC values of PSA, PSAd,PI-RADS score, and lesion dimension were 0.684, 0.731, 0.856,and 0.858, respectively. The optimal cutoffs were ≥10 ng/mL forPSA, ≥0.22 ng/mL/cm3 for PSAd, ≥4 for the PI-RADS score and≥10 mm for lesion dimension. DeLong’s tests showed that thePI-RADS score and lesion dimension were significantly superiorto PSA and PSAd. There was no significant difference betweenthe PI-RADS score and lesion dimension. Conclusion: The PI-RADS score and lesion dimension hadhigher accuracy than PSA and PSAd in clinically significantPCa detection. Lesions ≥10 mm were associated with the riskof clinically significant PCa, and this should be considered inreporting.

Özet

Amaç: Klinik anlamlı prostat kanseri (KAK) tespitinde, prostat-spesifik antijen (PSA), PSA yoğunluğu (PSAd), prostat görüntüleme-raporlandırma ve bilgi sistemi (PI-RADS) skoru ve lezyon boyutu içeren dört parametrenin karşılaştırılması amaçlanmıştır. Yöntemler: Bu çalışma, 01/2018 ile 03/2019 arasında, multiparametrik prostat manyetik rezonans görüntüleme (mpMRG) ve 12 kadran sistematik prostat biyopsisi yapılan 154 olguyu kapsamaktadır. MRG bulguları 2 radyolog tarafından konsensüs ile PI-RADS versiyon 2.1 kullanılarak değerlendirildi. Gleason ≥3+4 tümörler KAK olarak tariflendi. Eğrinin altında kalan alan (EAA) alıcı çalışma karakteristik eğrisi (ROC) kullanılarak hesaplandı. Uygun sınır değeri tespit için Youden’in indeksi kullanıldı. Dört parametre arasındaki anlamlı farklılık DeLong testi yardımıyla değerlendirildi. Bulgular: Kohortda ortanca yaş 66 (±6,9) idi. Ortanca PSA 7,8 ng/dL, PSAd 0,146 ng/mL/cm3ve lezyon boyutu 12 mm idi. MRG’de PI-RADS skor 1’den 5’e olgu sayısı sırasıyla 34, 6, 11, 38 ve 65’ti. Patolojide, 44 olguda tümör görülmezken, 33 klinik sessiz kanser, 77 KAK saptandı. PSA, PSAd, PI-RADS skoru ve lezyon boyutu için EAA’lar sırasıyla; 0,684, 0,731, 0,856 ve 0,858 idi. En uygun sınır değerler PSA için ≥10 ng/mL, PSAd için ≥0,22 ng/mL/cm3 , PI-RADS skoru için ≥ skor 4 ve lezyon boyutu için ≥10 mm idi. DeLong testinde PI-RADS skoru ve lezyon boyutu, PSA ve PSAd’den daha üstün bulundu. PI-RADS skoru ile lezyon boyutu arasında anlamlı fark yoktu. Sonuç: KAK tanısında, PI-RADS skoru ve lezyon boyutu PSA ve PSAd’den daha yüksek doğruluğa sahiptir. 10 mm’den büyük lezyonlar KAK için p

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Cite This Article

AKIN, Y., COŞKUN, M., ULUÇ, M. E., DÖNMEZ, E. M. H., ÖCAL, İ., GÜMÜŞ, C. (2022). Predictors of Clinically Significant Prostate Cancer: A Comparative Study of PSA, PSA Density, and MRI Parameters. İstanbul Medical Journal, Cilt: 22 - Sayı: 1, 31–37. https://ajindex.com/articles/551813

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