Informace o publikaci

Fully Automatic CAD System for Segmentation and Classification of Spinal Metastatic Lesions in CT Data

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CHMELIK Jiri JAKUBICEK Roman JAN Jiri OUŘEDNÍČEK Petr LAMBERT Lukas AMADORI Elena GAVELLI Giampaolo

Rok publikování 2019
Druh Článek ve sborníku
Konference WORLD CONGRESS ON MEDICAL PHYSICS AND BIOMEDICAL ENGINEERING 2018, VOL 1
Fakulta / Pracoviště MU

Lékařská fakulta

Citace
www https://link.springer.com/chapter/10.1007/978-981-10-9035-6_28
Doi http://dx.doi.org/10.1007/978-981-10-9035-6_28
Klíčová slova CAD; Convolution neural network; Spine analysis; Metastasis; CT data
Popis Our contribution presents a research progress in our long-term project that deals with spine analysis in computed tomography (CT) data. A fully automatic computer-aided diagnosis (CAD) system is presented, enabling the simultaneous segmentation and classification of metastatic tissues that can occur in the vertebrae of oncological patients. The task of the proposed CAD system is to segment metastatic lesions and classify them into two categories: osteolytic and osteoblastic. These lesions, especially osteolytic, are ill defined and it is difficult to detect them directly with only information about voxel intensity. The use of several local texture and shape features turned out to be useful for correct classification, however the exact determination of relevant image features is a difficult task. For this reason, the feature determination has been solved by automatic feature extraction provided by a deep convolutional neural network (CNN). The achieved mean sensitivity of detected lesions is greater than 92% with approximately three false positive detections per lesion for both types.

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