International Journal of Advances in Engineering Research http://www.ijaer.com (IJAER) 2012, Vol. No. 4, Issue No. III, September ISSN: 2231-5152 International Journal of Advances in Engineering Research NEURAL NETWORKS: APPLICATION IN GALLBLADDER CANCER DETECTION Dr. Umesh Sehgal 1 , Sandeep Ranjan 2 1,2 Arni School of Computer Science, Arni University, HP 1 E –mail:umeshsehgalind@gmail.com 2 E-mail: ersandeepranjan@yahoo.com ABSTRACT Gallbladder cancer is one of the biggest challenges in medicine and one of the leading causes of deaths in world. The cost and human expertise involved in diagnose delays the process itself and in majority cases it is detected when it is too late to start the treatment. We have proposed a method to speed up the diagnosis process and reduce the cost using of a new methodology in application artificial neural networks to the medical diagnosis images. Keywords: Artificial Neural networks, Endoscopic Ultrasound Elastography INTRODUCTION Artificial neural network models have been studied for many years in the hope of achieving human like performance in several fields such as speech and image understanding. An increasing occurrence of cancer cases around the world and especially in developing countries has alarmed the researchers to investigate the use of neural networks in early and correct diagnosis of cancer [1]. Cancer is the leading cause of death in economically developed countries and the second leading cause of deaths in developing countries. Gallbladder cancer is most common cancer in males and is sometimes medically correlated to gallbladder stone which is not seen as a serious disease. The usage of diagnostic tests to detect cancer in early stages provides brighter chances for patients to obtain effective treatment with reduced side effects. Patients whose cancers are found in early stage and treated in a timely manner are likely to survive these cancers compared to those in whom cancers remain hidden until symptoms appear. Until recently biopsy (medical and needle biopsy) had been the only tool to detect cancer. Because the gallbladder is located deep inside the body, early tumors cannot be seen or felt during routine physical exams. Presently there are no blood tests or other tests that can reliably detect gallbladder cancers early enough to be useful as screening tests. (Screening is testing for cancer in people without any symptoms.) Without effective screening tests, most gallbladder cancers are found only when the cancer has grown enough to cause symptoms and is in the later stage where the treatment is in vain [2]. The images produced by other diagnostic tests such as tomography etc are complex to understand and comment on. It requires experienced and skilled physicians to study these images before concluding weather the test is positive for cancer or not. In many cases where