Frontal ve Sfenoid Sinus Alan ve Hacminin Manuel ve Yarı Otomatik Segmentasyon Modülü Kullanılarak Bilgisayarlı Tomografide İncelenmesi

Amaç: Frontal sinus (FS) ve sfenoid sinus (SS) alan ve hacimlerinin ölçümlerinde üçüncü jenerasyon yazılımların manuel ve yarı otomatik segmantesyon modüllerinin etkinliğinin bilgisayarlı tomografi (BT) görüntüleri kullanılarak karşılaştırılmasıdır. Yöntem: Yaşları 19-73 arasında değişen (ortalama 37,38 ± 16,32 yıl) 200 hastaya (96 kadın, 104 erkek) ait BT görüntüleri rastgele seçilmiştir. FS ve SS alan ve hacimleri InVesalius 3.1.1 (CTI, Campinas, São Paulo, Brazil) yazılımın manuel ve yarı otomatik segmentasyon modülleri kullanılarak ölçülmüştür. Bulgular Manuel (4,80 ± 1,86 cm2) ve yarı otomatik (4,84 ± 1,83 cm2) segmentasyon modlarındaki SS alan ölçümleri arasında istatistiksel olarak anlamlı bir fark bulunmuştur (p<0,05). SS hacmi manuel ve yarı otomatik segmantasyon modüllerinde sırasıyla 8,44 ± 3,55 cm3 ve 9,62 ± 3,21 cm3 olarak, FS hacmi ise manuel ve yarı otomatik segmantasyon modüllerinde sırasıyla 5,32 ± 2,04 cm3 ve 6,65 ± 2,70 cm3 olarak hesaplanmıştır. Hacim hesaplamaları arasında her iki modül arasında istatistiksel olarak anlamlı bir fark bulunmuştur (p<0,05). Sonuç: Her iki segmentasyon modülünde elde edilen verilerin literatürde belirtilen verilere yakın olduğu görülmüştür. Ancak yarı otomatik segmentasyon modülünde değerlendirilecek yapı dışında kalan anatomik oluşumların ölçümlere dahil olmadığından emin olunması gerekmektedir.

Anahtar Kelimeler:

Manuel segmantasyon, yarı-otomatik segmentasyon, frontal sinus, sfenoid sinus, bilgisayarlı tomografi

Comparison Of Manual and Semiautomatic Segmentation Methods for Calculating Frontal and Sphenoid Sinus Area and Volume Using of Computed Tomography

Objective: To compare the effectiveness of the manual and semi-automatic segmentation modules of the third-generation software used in computed tomography (CT) images in calculating frontal sinus (FS) and sphenoid sinus (SS) areas and volumes. Methods: CT images of 200 patients (96 female, 104 male) between the ages of 19 and 73 years (mean 37.38 ± 16.32 years) were randomly selected. Volume and area of FS and SS were segmented manually and semi-automatically using InVesalius 3.1.1 software (CTI, Campinas, São Paulo, Brazil). Results: There was a statistically significant difference was found the main SS area in manual mode and semi-automatic mode as 4.80 ± 1.86 cm2 and 4.84 ± 1.83 cm2, respectively. The main SS volumes were in manual mode and semi-automatic mode as 8.44 ± 3.55 cm3 and 9.62 ± 3.21 cm3, respectively. The main FS volumes were in manual mode and semi-automatic mode as 5.32 ± 2.04 cm3 and 6.65 ± 2.70 cm3, respectively. There was a statistically significant difference was found between manual mode and semi-automatic mode in volume calculation (p<0.05). Conclusion: It was seen that the values measured in both segmentations are close to those presented in the mean literature data, however, when using the semi-automatic segmentation module, it should be ensured that the formations other than the structure to be evaluated are not included in the measurement.

Keywords:

Manual segmentation, Semi-automatic segmentation, frontal sinus, sphenoid sinus, computed tomography,

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