Title: Determination of Tumor Boundaries in FLAIR Sequence MR Image with Different Image Segmentation Algorithms

Abstract: Tumors are undesired tissue disorders that occur in many different parts of the body. These disorders can be either benign or malignant depending on their type. Brain tumors are non-brain structures that are frequently encountered in neurology. These structures negatively affect daily life by disrupting the functional centers of the person with respect to their region in the brain. Determining certain boundaries of tumor areas in radiology is an important parameter for treatment and diagnosis. In this study, segmentation of the tumor region on FLAIR sequence MR image taken from the BRATS database has been tried with seven different image processing algorithms. Segmentation performances of algorithms have been determined by using dice and jaccard indexes.

Keywords: FLAIR; image processing; MR; segmentation; tumor

Başlık: FLAIR Sekans MR Görüntüsünde Tümör Sınırlarının Farklı Görüntü Segmentasyon Algoritmaları ile Belirlenmesi

Özet: Tümörler, vücudun birçok farklı bölgesinde meydana gelen istenmeyen doku bozukluklarıdır. Bu bozukluklar, tiplerine göre iyi huylu veya kötü huylu olabilir. Beyin tümörleri nörolojide sıklıkla karşılaşılan beyin dışı yapılardır. Bu yapılar beyinde bulundukları bölgeye göre kişinin fonksiyonel merkezlerini bozarak günlük yaşamı olumsuz bir şekilde etkilemektedir. Radyolojide tümörlü bölgelerin net sınırlarının belirlenmesi tedavi ve tanı için önemli bir parametredir. Bu çalışmada, BRATS veri tabanından alınan FLAIR sekans MR görüntüsünde tümörlü bölgenin segmentasyonu yedi farklı görüntü işleme algoritması ile denenmiştir. Dice ve jaccard indeksleri kullanılarak algoritmaların segmentasyon performansları belirlenmiştir.

Anahtar kelimeler: FLAIR; görüntü işleme; MR; segmentasyon; tümör

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