Yıl: 2021 Cilt: 22 Sayı: 3 Sayfa Aralığı: 192 - 196 Metin Dili: İngilizce DOI: 10.4274/imj.galenos.2021.20744 İndeks Tarihi: 24-10-2021

Histogram Analysis of Computed Tomography Images for Quantitative Assessment of Gastric Cancer Invasiveness

Öz:
Introduction: To explore the role of computed tomography(CT) texture analysis in predicting T-stage of gastric cancers (GC).Methods: Preoperative enhanced CT images of 110 patients(men: 84, women: 26) with GC were reviewed retrospectively.Regions of interest were manually drawn along the margin ofthe lesion on the section where it appeared largest on the portalvenous CT images, which yielded texture parameters (1, 10,50, 90, and 99% percentiles; minimum, mean, and maximumnorm; variance; skewness, and kurtosis). Correlations betweentexture parameters and pathological stage were analysed withSpearman’s correlation test. The distributions of all variableswere checked with the aid of the Kolmogorov-Smirnov test.The Independent-Samples t-test and the Mann-Whitney Utest were used (as appropriate) to compare quantitative data.The chi-squared test was employed to compare qualitativedata. The diagnostic performance of CT texture parameters indifferentiating different stages was evaluated using receiveroperating characteristic analysis.Results: The T4 variance was significantly greater than that ofthe T1-to-T3 group (p˂0.05). The T4 skewness was significantlylower than that of the T1-to-T3 group (p˂0.05) but the T4kurtosis significantly higher (p˂0.05).Conclusion: The histogram parameters of CT-TA, especiallyskewness and kurtosis derived from portal, venous phase CTimages, may serve as biomarkers stratifying the risk of serosalinvasion (stage-T4) by locally advanced GC. Thus, histogramanalysis can be used preoperatively to evaluate serosalinvasion.
Anahtar Kelime:

Mide Kanseri İnvazifliğinin Kantitatif Değerlendirmesinde Bilgisayarlı Tomografi Histogram Analizi

Öz:
Amaç: Mide kanserlerinin (MK) T-evresini tahmin etmede bilgisayarlı tomografi (BT) doku analizinin rolünü keşfetmektir. Yöntemler: MK’li 110 hastanın (erkek: 84, kadın: 26) ameliyat öncesi geliştirilmiş BT görüntüleri retrospektif olarak incelendi. İlgi bölgeleri, doku parametreleri (1, 10, 50, 90 ve %99 persentiller; minimum, ortalama ve maksimum norm; varyans; çarpıklık ve basıklık). Doku parametreleri ile patolojik evre arasındaki ilişkiler Spearman korelasyon testi ile analiz edildi. Tüm değişkenlerin dağılımları Kolmogorov-Smirnov testi yardımıyla kontrol edildi. Niceliksel verileri karşılaştırmak için Independent-Samples t-test ve Mann-Whitney U testi (uygun şekilde) kullanıldı. Nitel verileri karşılaştırmak için ki-kare testi kullanılmıştır. Farklı aşamaları ayırt etmede CT doku parametrelerinin tanısal performansı, alıcı işletim karakteristiği analizi kullanılarak değerlendirildi. Bulgular: T4 varyansı, T1-T3 grubuna göre anlamlı derecede daha yüksekti (p˂0,05). T4 çarpıklığı, T1-T3 grubuna göre anlamlı derecede düşüktü (p˂0,05), ancak T4 basıklığı anlamlı derecede yüksekti (p˂0,05). Sonuç: BT doku analizi histogram parametreleri, özellikle portal, venöz faz BT görüntülerinden türetilen çarpıklık ve basıklık, lokal olarak ilerlemiş mide tümörlerinde serozal invazyon riskini (evre-T4) katmanlandıran biyobelirteçler olarak hizmet edebilir. Bu nedenle, histogram analizi, serozal invazyonu değerlendirmek için preoperatif olarak kullanılabilir.
Anahtar Kelime:

Belge Türü: Makale Makale Türü: Araştırma Makalesi Erişim Türü: Erişime Açık
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APA Yardimci A, Mermut Ö, Yardimci V, sel i, Turan BEKTAŞ C (2021). Histogram Analysis of Computed Tomography Images for Quantitative Assessment of Gastric Cancer Invasiveness. , 192 - 196. 10.4274/imj.galenos.2021.20744
Chicago Yardimci Aytul Hande,Mermut Özlem,Yardimci Veysi Hakan,sel ipek,Turan BEKTAŞ Ceyda Histogram Analysis of Computed Tomography Images for Quantitative Assessment of Gastric Cancer Invasiveness. (2021): 192 - 196. 10.4274/imj.galenos.2021.20744
MLA Yardimci Aytul Hande,Mermut Özlem,Yardimci Veysi Hakan,sel ipek,Turan BEKTAŞ Ceyda Histogram Analysis of Computed Tomography Images for Quantitative Assessment of Gastric Cancer Invasiveness. , 2021, ss.192 - 196. 10.4274/imj.galenos.2021.20744
AMA Yardimci A,Mermut Ö,Yardimci V,sel i,Turan BEKTAŞ C Histogram Analysis of Computed Tomography Images for Quantitative Assessment of Gastric Cancer Invasiveness. . 2021; 192 - 196. 10.4274/imj.galenos.2021.20744
Vancouver Yardimci A,Mermut Ö,Yardimci V,sel i,Turan BEKTAŞ C Histogram Analysis of Computed Tomography Images for Quantitative Assessment of Gastric Cancer Invasiveness. . 2021; 192 - 196. 10.4274/imj.galenos.2021.20744
IEEE Yardimci A,Mermut Ö,Yardimci V,sel i,Turan BEKTAŞ C "Histogram Analysis of Computed Tomography Images for Quantitative Assessment of Gastric Cancer Invasiveness." , ss.192 - 196, 2021. 10.4274/imj.galenos.2021.20744
ISNAD Yardimci, Aytul Hande vd. "Histogram Analysis of Computed Tomography Images for Quantitative Assessment of Gastric Cancer Invasiveness". (2021), 192-196. https://doi.org/10.4274/imj.galenos.2021.20744
APA Yardimci A, Mermut Ö, Yardimci V, sel i, Turan BEKTAŞ C (2021). Histogram Analysis of Computed Tomography Images for Quantitative Assessment of Gastric Cancer Invasiveness. İstanbul Medical Journal, 22(3), 192 - 196. 10.4274/imj.galenos.2021.20744
Chicago Yardimci Aytul Hande,Mermut Özlem,Yardimci Veysi Hakan,sel ipek,Turan BEKTAŞ Ceyda Histogram Analysis of Computed Tomography Images for Quantitative Assessment of Gastric Cancer Invasiveness. İstanbul Medical Journal 22, no.3 (2021): 192 - 196. 10.4274/imj.galenos.2021.20744
MLA Yardimci Aytul Hande,Mermut Özlem,Yardimci Veysi Hakan,sel ipek,Turan BEKTAŞ Ceyda Histogram Analysis of Computed Tomography Images for Quantitative Assessment of Gastric Cancer Invasiveness. İstanbul Medical Journal, vol.22, no.3, 2021, ss.192 - 196. 10.4274/imj.galenos.2021.20744
AMA Yardimci A,Mermut Ö,Yardimci V,sel i,Turan BEKTAŞ C Histogram Analysis of Computed Tomography Images for Quantitative Assessment of Gastric Cancer Invasiveness. İstanbul Medical Journal. 2021; 22(3): 192 - 196. 10.4274/imj.galenos.2021.20744
Vancouver Yardimci A,Mermut Ö,Yardimci V,sel i,Turan BEKTAŞ C Histogram Analysis of Computed Tomography Images for Quantitative Assessment of Gastric Cancer Invasiveness. İstanbul Medical Journal. 2021; 22(3): 192 - 196. 10.4274/imj.galenos.2021.20744
IEEE Yardimci A,Mermut Ö,Yardimci V,sel i,Turan BEKTAŞ C "Histogram Analysis of Computed Tomography Images for Quantitative Assessment of Gastric Cancer Invasiveness." İstanbul Medical Journal, 22, ss.192 - 196, 2021. 10.4274/imj.galenos.2021.20744
ISNAD Yardimci, Aytul Hande vd. "Histogram Analysis of Computed Tomography Images for Quantitative Assessment of Gastric Cancer Invasiveness". İstanbul Medical Journal 22/3 (2021), 192-196. https://doi.org/10.4274/imj.galenos.2021.20744