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- Title
A Predictive Model Based on Bi-parametric Magnetic Resonance Imaging and Clinical Parameters for Clinically Significant Prostate Cancer in the Korean Population.
- Authors
Tae Il Noh; Chang Wan Hyun; Ha Eun Kang; Hyun Jung Jin; Jong Hyun Tae; Ji Sung Shim; Sung Gu Kang; Deuk Jae Sung; Jun Cheon; Jeong Gu Lee; Seok Ho Kang
- Abstract
Purpose This study aimed to develop and validate a predictive model for the assessment of clinically significant prostate cancer (csPCa) in men, prior to prostate biopsies, based on bi-parametric magnetic resonance imaging (bpMRI) and clinical parameters. Materials and Methods We retrospectively analyzed 300 men with clinical suspicion of prostate cancer (prostate-specific antigen [PSA] ≥ 4.0 ng/mL and/or abnormal findings in a digital rectal examination), who underwent bpMRI-ultrasound fusion transperineal targeted and systematic biopsies in the same session, at a Korean university hospital. Predictive models, based on Prostate Imaging Reporting and Data Systems scores of bpMRI and clinical parameters, were developed to detect csPCa (intermediate/high grade [Gleason score ≥ 3+4]) and compared by analyzing the areas under the curves and decision curves. Results A predictive model defined by the combination of bpMRI and clinical parameters (age, PSA density) showed high discriminatory power (area under the curve, 0.861) and resulted in a significant net benefit on decision curve analysis. Applying a probability threshold of 7.5%, 21.6% of men could avoid unnecessary prostate biopsy, while only 1.0% of significant prostate cancers were missed. Conclusion This predictive model provided a reliable and measurable means of risk stratification of csPCa, with high discriminatory power and great net benefit. It could be a useful tool for clinical decision-making prior to prostate biopsies.
- Subjects
MAGNETIC resonance imaging; PROSTATE cancer; KOREANS; PREDICTION models; DIGITAL rectal examination; PROSTATE biopsy
- Publication
Cancer Research & Treatment, 2021, Vol 53, Issue 4, p1148
- ISSN
1598-2998
- Publication type
Article
- DOI
10.4143/crt.2020.1068