Nikolay TSANDEV, Caner BAKICI, Angel VODENICHAROV

Konik ışınlı bilgisayarlı tomografide domuz kafa atardamar sisteminin üç boyutlu rekonstrüksiyon ile korozyon kast arasındaki uyumluluğun değerlendirilmesi

Bu çalışma, domuz kafa atardamar sisteminin korozyon kast modelleri ile bu modellerin konik ışınlı bilgisayarlı tomografisi (KIBT) kullanarak üç boyutlu (3B) rekonstrüksiyonlarının karşılaştırması amaçlanmıştır. Dişi domuzlara ait altı baş, aynı anda her iki şahdamarından, korozyon kast tekniği için Duracryl Plus enjekte edildi ve ayrıca bir başka dişi domuza ait bir baş, KIBT çalışması için %10 jelatinli sıcak su çözeltisi (40°C) içinde doymuş kurşun tetroksit (Pb3O4) ile dolduruldu. İki boyutlu (2B) görüntüler Tıpta Dijital Görüntüleme ve İletişim (DICOM) formatında saklandı. Daha sonra bu görüntülerin segmentasyonu ve son işlemleri çeşitli yazılım programları kullanılarak gerçekleştirildi. 3B modellerin, korozyon kast modelleriyle uyumlu olduğu görüldü. KIBT görüntülerinde kemik yapılar ve atardamarlar net olarak belirlendi. Örnek görüntüleme, segmentasyon ve segmentasyon sonrası işlemleri sırasıyla 10-15 dakika, 4 saat ve 15 dakika sürdü. İç karotis arter ile dış karotis arter ve ana dalları 3B modellerde iyi görüldü. Sonuç olarak anatomi eğitiminde, radyolojik değerlendirmelerde, patolojik ve çeşitli incelemelerde 3 boyutlu model ve görüntülerin etkin bir şekilde kullanılabileceği düşünülmektedir.

Evaluation of the compatibility between corrosion casts and 3D reconstruction of pig head arterial system on cone beam computed tomography

This study aimed to compare the corrosion cast models of the porcine head arterial system with three-dimensional (3D) reconstructions using cone beam computed tomography (CBCT) of these cast models. Six heads from sows were simultaneously injected through both carotid arteries with Duracryl Plus for corrosion cast technique and an additional head, also from another one sow head, was filled with saturated lead tetroxide (Pb3O4) in a 10% hot water solution (40°C) of gelatin for CBCT study. Two-dimensional (2D) images were stored in Digital Imaging and Communications in Medicine (DICOM). Subsequently, segmentation and post-processing of these images were performed by using various software programs. The 3D models were found to be compatible with the corrosion cast models. It was observed that osseous structures and arteries were clearly identified on CBCT images. Specimen scan, segmentation, and post segmentation had a duration of 10-15 minutes, 4 hours, and 15 minutes, respectively. The internal carotid artery, external carotid artery, and its main branches were seen well on 3D models. In conclusion, it is considered that 3D models and images can be effectively used in anatomy education, radiological evaluations, pathological and variational investigations.

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