Prostate cancer is a type of cancer that occurs in the prostate gland, which is an important reproductive organ in men. It is the second most common cancer found in men worldwide and the fifth leading cause of cancer death in men.
The American Cancer Society estimates that about 248,530 new cases of prostate cancer will be diagnosed in the United States in 2021 and about 34,130 men will die from the disease.
The need for better screening techniques
The current screening methods for prostate cancer are the digital rectal exam (DRE) and the prostate-specific antigen (PSA) blood test.
However, these screening techniques are not always accurate, leading to overdiagnosis and overtreatment of prostate cancer. The PSA test, in particular, has a high rate of false positives, which means that many men who do not have prostate cancer are diagnosed with the disease and undergo unnecessary invasive tests and treatments.
Revolutionary screening techniques
There are several new and emerging screening techniques for prostate cancer that are being developed to address the shortcomings of the traditional screening methods. Here are some of the most promising ones:.
1. Multiparametric magnetic resonance imaging (MRI)
Multiparametric MRI is a type of MRI scan that combines different imaging techniques to produce detailed images of the prostate gland. It can help detect prostate cancer and determine the extent and aggressiveness of the cancer.
Multiparametric MRI can be used as a first-line screening test for men with suspected prostate cancer or as a tool to guide biopsies in men with abnormal PSA test results. Studies have shown that multiparametric MRI can reduce the number of unnecessary biopsies and improve the detection of aggressive prostate cancer.
2. Prostate health index (phi) test
The phi test is a blood test that measures three different markers: total PSA, free PSA, and proPSA. It combines these markers to calculate a score that reflects the likelihood of having prostate cancer.
The phi test is more accurate than the PSA test alone in predicting the risk of prostate cancer. It can also help distinguish between aggressive and non-aggressive forms of prostate cancer.
3. 4Kscore test
The 4Kscore test is a blood test that measures four different prostate-specific kallikreins: total PSA, free PSA, intact PSA, and human kallikrein-related peptidase 2 (hK2).
The test uses an algorithm to calculate a score that predicts the risk of having aggressive prostate cancer. The 4Kscore test has been shown to have a higher accuracy than the PSA test in predicting the risk of high-grade prostate cancer.
4. SelectMDx test
The SelectMDx test is a urine test that measures two biomarkers: HOXC6 and DLX1. These biomarkers are associated with the development and progression of prostate cancer.
The test uses an algorithm to calculate a score that predicts the risk of having aggressive prostate cancer. The SelectMDx test has been shown to have a higher accuracy than the PSA test in identifying men who are at high risk of having aggressive prostate cancer and who would benefit from a prostate biopsy.
Conclusion
The development of revolutionary screening techniques for prostate cancer is a promising development in the fight against this disease.
These new screening methods have the potential to improve the accuracy of prostate cancer diagnosis and reduce the number of unnecessary invasive tests and treatments. As these techniques become more widely available, they will help ensure that men receive the appropriate screening and treatment for their individual risk of prostate cancer.