Classification of vertebral compression fractures in magnetic resonance images using spectral and fractal analysis. - Paulo M. Azevedo-Marques; Heloisa Ferreira Spagnoli; Lucas Frighetto-Pereira; Rafael Menezes-Reis; Guilherme Augusto Metzner; Rangaraj M. Rangayyan; Marcello Henrique Nogueira-Barbosa (EMBC, 2015)