The detection of prostate cancer is 16.9% in patients with normal PSA and normal DRE and 9.1% with high PSA, it is 10.4% with normal PSA and abnormal DRE and 62.9% with high PSA and abnormal DRE.
The sensitivity of PSA ( n = 10) at the cut-off values of < 4 ng/ml, 4-10 ng/ml, > 10 ng/ml were 86.8%, 93.1%, and 76.0% respectively; while specificity ( n = 8) were 42.3%, 29.3%, and 28.8% respectively. The PSA cut-off of 4-10 ng/ml possessed the highest diagnostic accuracy (55.7%).
For example, some doctors recommend that men over the age of 50 undergo screening using a test called prostate specific antigen (PSA) to screen for possible prostate cancer. Before a test is approved for use in medical practice, the manufacturer needs to test two aspects of the test's performance.
The PSA test measures the level of PSA in your blood which may be elevated due to prostate cancer. However, high levels of PSA do not always indicate the presence of prostate cancer. Other prostate conditions such as enlarged prostate (benign prostatic hyperplasia) or inflammation of the prostate (prostatitis) can cause an increase in PSA levels.
Prostate-specific antigen (PSA) test is widely used to diagnose early prostate cancer (PCa). Its low sensitivity, especially in the gray zone, usually incurs overtreatment or missed diagnosis. As an emerging tumor marker, exosomes have attracted great interest in non-invasive diagnosis of PCa.
The ExoDx Prostate test returns a personalized risk score ranging from 0 to 100 to help assess a man's risk for high-grade, clinically significant prostate cancer. 18 An EPI result below the cut-off point of 15.6 is associated with a lower likelihood of high-grade prostate cancer; on the other hand, an EPI result above the validated cut-off point of 15.6 is associated with an increased
Men who proceed with screening may be given a prostate-specific antigen (PSA) blood test (which can indicate an abnormal cell count in the prostate gland) and/or a digital rectal exam. The
What is the ExoDx™ Prostate Test? The ExoDx™ Prostate Test is a simple, non-DRE, urine-based, liquid biopsy test indicated for men 50 years of age and older with a prostate-specific antigen (PSA) 2-10ng/mL, or PSA in the "gray zone", considering an initial biopsy. The ExoDx Prostate test returns a risk score that determines a patient's risk of clinically significant prostate cancer
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sensitivity of psa test for prostate cancer