Application of a semiautomatic classifier for modic and disk hernia changes in magnetic resonance

• Autor(a) principal: Vivas,Eduardo López Arce
• Data de Publicação: 2015
• Outros Autores: Oliva,Francisco Javier Cisneros, Aguilar,Rita Quetziquel Fuentes, González,Alejandro García, Cruz,José González, Ávila,José María Jiménez
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Coluna/Columna
• Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1808-18512015000100018
• topic: Intervertebral disc; Hernia; Low back pain; Magnetic resonance imaging

OBJECTIVE: Early detection of degenerative changes in lumbar intervertebral disc by magnetic resonance imaging in a semiautomatic classifier for prevention of degenerative disease. METHOD: MRIs were selected with a diagnosis of degenerative disc disease or back pain from January to May 2014, with a sample of 23 patients and a total of 170 disks evaluated by sagittal T2 MRI image, first evaluated by a specialist physician in training and them were introduced into the software, being the results compared. RESULTS: One hundred and fifteen discs were evaluated by a programmed semiautomatic classifier to identify MODIC changes and hernia, which produced results "normal or MODIC" and "normal or abnormal", respectively. With a total of 230 readings, of which 141 were correct, 84 were reading errors and 10 readings were undiagnosed, the semiautomatic classifier is a useful tool for early diagnosis or established disease and is easy to apply because of the speed and ease of use; however, at this early stage of development, software is inferior to clinical observations and the results were from around 65% to 60% certainty for MODIC rating and 61% to 58% for disc herniation, compared with clinical evaluations. CONCLUSION: The comparative results between the two doctors were 94 consistent results and only 21 errors, which represents 81% certainty.