Article ID Journal Published Year Pages File Type
1548947 Progress in Natural Science: Materials International 2009 5 Pages PDF
Abstract

A new method was provided in this paper to recognize tumor in PET images automatically and reduce the waiting time of patient. Based on the unsupervised clustering algorithm (ISODATA), this method diagnoses tumor with short dynamic PET images. The theoretical basis of this method is that the metabolic characteristics of different tissues, represented by time-activity curve in the region of interest, are distinctive. The computer program was developed and validated using simulated dynamic PET data with small tumor in lung. Simulation study shows that this method could recognize tumor with the short dynamic PET data in 10 min successfully, and this method was not sensitive to initial cluster center.

Related Topics
Physical Sciences and Engineering Materials Science Electronic, Optical and Magnetic Materials
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