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British Journal of Radiology (1986) 59, 895-900
© 1986 British Institute of Radiology
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The British Journal of Radiology, Vol 59, Issue 705 895-900, Copyright © 1986 by British Institute of Radiology

ARTICLES

A model of semiautomatic type-specific diagnosis of brain tumours by computed tomography: mathematical fundaments and practical application

JR Iglesias, E Kazner, C Aruffo and J Esparza

Applying Escudero's formula to Bayes' theorem of conditional probabilities, we have developed a mathematical model to diagnose type-specific brain tumours with great accuracy. We have transformed a multidimensional system of n characteristics on computed tomography into a linear system, making this model very easy to use and, thus, accessible to the clinician and radiologist. We tested this model in 177 brain tumours. In 86% of the cases we obtained a type-specific correct diagnosis, achieving better results than those previously reported. Suggestions are given as to how to improve this method further.




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