Abstract
Prostate cancer is a major cause of concern in male population as it is said to affect 1 in every 7 men in their lifetime. The number of cases being registered for prostate cancer and its mortality rates are increasing yearly at an alarming rate. Due to the high resolution and multi-dimensionality of the Magnetic Resonance Imaging (MRI) images, proper diagnostic system and tools are required. In this study, multiclass Support Vector Machines (SVM) classifier has been used, which is a well-known machine learning technique to classify the prostate images into 3 categories namely normal, benign and malign. This study has also made use of the Scale Invariant Feature Transform (SIFT) feature extraction method which is well known for its high rotation invariant nature. A SIFT-SVM approach has been introduced for the first time in prostate cancer detection. The performance of the system is computed in terms of sensitivity, specificity and accuracy. Our approach achieved high performance with an accuracy rate of about 99.95% when 40% of the training data was considered for obtaining our result.
Highlights
Prostate cancer is the most commonly found form of cancer especially in the male population and is a major cause of mortality rates in the developed countries (Niaf et al, 2014)
Usually a series of biopsies are performed to check the presence of malignant cell in the prostate after the test shows a spike in the Prostate Specific Antigen (PSA) level
Sensitivity provides us with the True Positive (TP) rate, that is, sensitivity is the capability of a system to precisely identify those with the disorder, whereas specificity is the capability of the test to precisely identify those without the disorder that is True Negative (TN) rate
Summary
Prostate cancer is the most commonly found form of cancer especially in the male population and is a major cause of mortality rates in the developed countries (Niaf et al, 2014). Benign Prostatic Hyperplasia (BPH): It refers to the enlargement of the prostate gland which is a common condition that may occur due to the growing age of a person. This can be corrected with medication or by performing a small surgery iii. Prostate Carcinoma: A condition which occurs due to the abnormal and uncontrollable growth of the malignant cells in the prostate gland. This is a serious condition which requires immediate medical supervision which may otherwise prove to be fatal.
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