Automated volumetry for unilateral hippocampal sclerosis detection in patients with temporal lobe epilepsy

• Tipo: Artigo em Livro de Atas de Conferência Internacional
• Data: 2016

Autores

Martins, C (Autor) Outra; da Silva, NM (Autor) Outra; Silva, G (Autor) Outra; Rozanski, VE (Autor) Outra; Cunha, JPS (Autor) FEUP

Ata de Conferência Internacional

Título: 38th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2016, Orlando, FL, USA, August 16-20, 2016

Páginas: 6339-6342

Indexação

ISI Web of Knowledge - 2 Citações

Scopus - 3 Citações

Outras Informações

ID Authenticus: P-00M-5XR

DOI: 10.1109/embc.2016.7592178

Abstract (EN): Hippocampal sclerosis (HS) is the most common cause of temporal lobe epilepsy (TLE) and can be identified in magnetic resonance imaging as hippocampal atrophy and subsequent volume loss. Detecting this kind of abnormalities through simple radiological assessment could be difficult, even for experienced radiologists. For that reason, hippocampal volumetry is generally used to support this kind of diagnosis. Manual volumetry is the traditional approach but it is time consuming and requires the physician to be familiar with neuroimaging software tools. In this paper, we propose an automated method, written as a script that uses FSL-FIRST, to perform hippocampal segmentation and compute an index to quantify hippocampi asymmetry (HAI). We compared the automated detection of HS (left or right) based on the HAI with the agreement of two experts in a group of 19 patients and 15 controls, achieving 84.2% sensitivity, 86.7% specificity and a Cohen's kappa coefficient of 0.704. The proposed method is integrated in the "Advanced Brain Imaging Lab" (ABrIL) cloud neurocomputing platform. The automated procedure is 77% (on average) faster to compute vs. the manual volumetry segmentation performed by an experienced physician.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 4