YABANCI CİSİMLER VE DENTAL MATERYALLERİN GÖRÜNTÜ ÖZELLİKLERİNİN FARKLI GÖRÜNTÜLEME TEKNİKLERİ İLE DEĞERLENDİRİLMESİ

Öz

Bu çalışmanın amacı, çene yüz bölgesine penetre olabilen opak veya opak olmayan dental materyaller ve yabancı cisimlerin görüntü karakterlerinin farklı görüntüleme teknikleri ile belirlenmesi ve bu cisimlerin saptanmasında konvansiyonel radyografi ve ultrasonografi tekniklerinin kullanımının karşılaştırılmasıdır. Çalışmaya farklı opasite özellikleri gösteren, dental materyaller ve yabancı cisimlerden oluşan 15 obje dahil edildi. Objeler, bir cm ve üç cm olmak üzere iki ayrı derinlikte sığır jelatinine gömüldü. Objeler, konvansiyonel radyografi ve ultrasonografi ile görüntülendi ve görüntü özellikleri tablo halinde kaydedildi. Konvansiyonel radyografi ile objelerin opasitesi değerlendirilirken, ultrasonografi ile görünürlükleri ve posterior akustik davranışları incelendi. Konvansiyonel radyografi görüntülerinde objelerden 9 tanesi opak, 2 tanesi yarı opak, 4 tanesi non-opak görünümdeydi. Ultrasonografi ile değerlendirmede konvansiyonel radyografide görüntü elde edilemeyen objeler de dahil olmak üzere tüm objelerden görüntü elde edilebildi. Bunlardan 13 tanesi hiperekoik görünümde izlenirken; 2 tanesi izoekoik görünümde idi. Objelerin akustik davranışları incelendiğinde ise, 9 tanesinde posterior akustik gölgelenme, 1 tanesinde comet tail artefaktı ve bir tanesinde reverberasyon artefaktı gözlenirken 4 tanesinde herhangi bir artefakt bulgusu izlenmedi. Ultrasonografi, yumuşak dokuya penetre olabilen, düşük radyodensite özelliği gösteren veya konvansiyonel radyografide görüntü oluşturmayan yabancı cisimlerin saptanmasında efektif şekilde kullanılabilir.

Anahtar Kelimeler

• Konvansiyonel radyografi
• maksillofasiyal bölge
• ultrasonografi
• yabancı cisim

EVALUATION OF THE IMAGE PROPERTIES OF FOREIGN BODIES AND DENTAL MATERIALS WITH DIFFERENT IMAGING TECHNIQUES

Öz

The aim of this study is to determine the image characteristics of opaque or non-opaque dental materials and foreign bodies that can penetrate the maxillofacial region with different imaging techniques. The study included fifteen distinct objects that possessed varying opacity properties, consisting dental materials and foreign bodies. Objects were embedded in bovine gelatin at two different depths, 1 cm and 3 cm. Objects were visualized by conventional radiography and ultrasonography, and their image properties were recorded. While the opacity of the objects was evaluated with conventional radiography, their visibility and posterior acoustic behavior were examined with ultrasonography. In conventional radiography images, 9 of the objects were opaque, 2 was semi-opaque, and 4 was non-opaque. During the evaluation using ultrasonography, images were successfully acquired from all objects, including those that were not visualized using conventional radiography. While 13 of them were observed to have a hyperechoic appearance, 2 of them were isoechoic. When the acoustic behavior of the objects was examined, posterior acoustic shadowing was observed in 9 of them, a comet tail artifact in 1, and a reverberation artifact in 1, while no artifact findings were observed in 4 of them. Ultrasonography can be used effectively to detect foreign bodies that have low radiodensities or do not form an image in conventional radiography.

Anahtar Kelimeler

• conventional radiography
• maxillofacial region
• ultrasonography
• foreign body

Kaynakça

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