▲4Kscore Test. The 4Kscore test takes into account four different prostate-specific biomarkers, namely, total PSA, free PSA, intact PSA, and human kallikrein 2, as well as the patient’s age, prior biopsy history, ...
Serum prostate-specific antigen (PSA) assays differ in calibration and response to different PSA forms. We examined intermethod differences in total PSA (tPSA) and free PSA (fPSA) measurements. We tested 157 samples with tPSA concentrations of 2 to 10 ng/mL (2-10 mug/L) using 6 PSA/fPS...
Preliminary results of clinical evaluation of the free/total prostate-specific antigen ratio in a multicentric study. We used a new immunometric assay of free PSA (FPSA-RIACT, CIS Diagnostici, Italy) which has shown good analytical performance; sample handling and ... R Mione,G Aimo,E Bombar...
Variability of assay methods for total and free PSA after WHO standardization. Tumour Biol. 2014 Mar;35(3):1867- 1873. 33. Boegemann M, Arsov C, Hadaschik B, Herkommer K, Imkamp F, Nofer JR, Gerß J, Albers P, Semjonow A. Discordant prostate specific antigen test results despite ...
The free to total PSA ratio provides important enhancement in specificity, thus obviating unnecessary negative biopsies. In the absence of an international standard for total PSA, much less free PSA, variation between manufacturers may cause confusing results. We sought to compare three different ...
纳入标准:① 血清总PSA(total PSA,t-PSA)为4~10 ng/mL;② 穿刺前均接受TRTE和mpMRI检查;③ 已签署知情同意书,能耐受穿刺活检术且有明确诊断结果。排除标准:① 患有前列腺炎、泌尿系感染及留置导尿管等影响PSA测值;② 既往有前列腺手术...
游离PSA比值(Free PSA Ratio)是一种用于判断前列腺癌风险的指标。它是通过测量血液中的游离前列腺特异性抗原(Free PSA)和总前列腺特异性抗原(Total PSA)的比值来计算得出的。 前列腺特异性抗原(Prostate-Specific Antigen,简称PSA)是一种由前列腺细胞分泌的蛋白质,其主要功能是液化精液,帮助精子在射精时更好地游动...
Population-based Analysis of Normal Total PSA and Percentage of Free/Total PSA Values: Results From Screening Cohort To examine the distribution of total prostate-specific antigen (tPSA) and percentage of free/total PSA (%f/tPSA) values in patients undergoing prostate can... U Capitanio,P Perro...
4Kscore, a test that measures total PSA, percent-free PSA, intact PSA, and a protein called human kallikrein 2 (hK2). This test can help determine your risk of aggressive prostate cancer when considered along with your age, biopsy history, and results from digital rectal exams. IsoPSA test...
F-PSA and t-PSA were determined in serum samples of 149 patients (45 with prostate cancer, 50 with benign prostate hyperplasia, 54 healthy controls) using the IMMULITE test. According to the IMMULITE test results, median values for t-PSA (f-PSA) were 1.59 (0.29) 渭g/l in healthy men,...