A soft computing solution to complex medical problems GIARA
An algorithm developed to improve the delineation of tumours in medical images has won recognition from the European Society for Fuzzy Logic and Technology (EUSFLAT). The innovation is designed to ensure that when doctors have to decide where tumour tissue should be separated from healthy tissue, the best solution is automatically offered. The algorithm, developed by the Artificial Intelligence and Approximate Reasoning Group (GIARA) at Spain's NUP/UPNA-Public University of Navarre, is an example of how 'soft computing', an emerging discipline that exploits imprecision and uncertainty, can provide effective solutions to complex problems. Soft computing differs from conventional computing in that it is tolerant of approximation, in the same way that the human mind is. The GIARA team first focused on studying brain images obtained by means of magnetic resonance. They then developed an algorithm to improve the process by segmenting the images, allowing each object in the image to be separated. Each pixel can therefore be analysed. In the case of medical images, this process can greatly help to delineate tumours, where, quite simply, millimetres count. 'Imagine we have the image of a brain by means of magnetic resonance and seven doctors who have to decide how to delimit the tumour,' said GIARA researcher Humberto Bustince. 'From experience we know that each one of them will separate the tumour differently. Now, with the proposed method, they will automatically be presented with a set of options which, in any case, are always going to improve the choice that the worst of the seven may make.' In effect, the algorithm takes the risk of choice away from the expert, because it automatically selects the best - or least worst - function. In addition to representing a potential breakthrough in medical procedure, the GIARA innovation also underlines a shift in the way scientists think of computing. Soft computing reflects the fact that the human mind, unlike present day computers, possesses a remarkable ability to store and process information which can be imprecise and uncertain. Indeed, the successful application of soft computing suggests that this discipline will continue to grow in the coming years, and that its influence will extend further afield, into other sectors and industries.For more information, please visit: GIARA http://giara.unavarra.es/(opens in new window)
Countries
Spain