ÇOK KESİTLİ BİLGİSAYARLI TOMOGRAFİ İLE AKUT RİNOSİNÜZİTİN KRONİK RİNOSİNÜZİTTEN AYIRT EDİLMESİ Differentiation of Acute Rhinosinusitis From Chronic Rhinosinusitis Using Multidetector Computed Tomography

Year 2019, Volume: 9 Issue: 4, 136 - 140, 27.12.2019

Mustafa Fatih Erkoç Bilge Öztoprak Mansur Doğan Gürol Göksungur

Abstract

ÖZET
Amaç: Akut rinosinüziti kronik rinosinüzitten klinik olarak ayırt etmek zordur ve bugüne kadar her iki durumda
da benzer görünen hava-sıvı seviyesi veya opaklaşma ile radyolojik olarak değerlendirilebilirler. Amacımız,
klasik radyolojik yaklaşımlarla birlikte hava dansitesinin analizinin, akut ve kronik rinosinüzit arasında
ayrım yapmak için yeni bir araç olarak kullanılıp kullanılamayacağını incelemekti.
Yöntem: Bu retrospektif çalışma paranazal sinüs çok kesitli bilgisayarlı tomografi (ÇKBT) yapılan 550 hastada
toplam 2419 sinüs içermekteydi. Hastalar sinüs durumlarının klinik tanısına göre üç gruba ayrıldı: grup 1 (n
= 176) akut enfeksiyonlu, grup 2 (s = 191) kronik rinosinüzitli hastaların oluşturduğu ve grup 3 (s = 181) sağlıklı
sinüslerin oluşturduğu gruptur. Herbir gruptaki paranazal sinüsler içerisindeki ortalama hava yoğunluğu
ve standart sapma, hava ile dolu sinüsün merkezindeki 0.5 cm2 lik ilgili alan (ROI) sinüs duvarı hariç olmak
üzere hesaplandı ve ölçüm takip eden 4-6 BT kesitinde tekrarlandı.
Bulgular: Ortalama hava dansitesi grup 1'de grup 2 ve 3 ile karşılaştırıldığında anlamlı olarak yüksekti (sırasıyla
- 810 HU, -973 HU ve -1010 HU; p <0.05) ve SD (89.3 HU, 21.1 HU ve 20.9 HU sırasıyla; p <0.05).
Sonuç: Paranazal sinüslerde artmış hava yoğunluğu akut rinosinüzitin kronik rinosinüzitten ayrılmasında
yardımcı olabilir.
Anahtar Sözcükler: Çok kesitli bilgisayarlı tomografi; Rinosinüzit, hava yoğunluğu.
ABSTRACT
It is difficult to differentiate acute from chronic rhinosinusitis clinically, and to date they are assessed
radiologically via air-fluid level or opacification, which can appear similar in both cases. Our purpose was to
examine whether air density analysis combined with classical radiological approaches can be used as a new
tool to differentiate between acute and chronic sinusitis.
This retrospective study included a total of 2419 sinuses in 550 patients who underwent paranasal sinus
multidetector computed tomography (MDCT). Patients were divided into three groups according to clinical
diagnosis of sinus status: acutely inflamed as group 1 (n=176), the chronic sinusitis as group 2 (n=191) and
healthy sinuses (n=183) as group 3, the control group. The mean air density and standard deviations (SD)
within the paranasal sinuses in each group were calculated by the measurements of air density with a region
of interest (ROI) of 0.5 cm2, located in the center of the air-filled sinus avoiding the sinus wall, and repeated
the measurement in 4-6 consequent CT slices, where available.
The mean air density was significantly higher in group 1 compared with group 2 and 3 (- 810 HU,-973 HU
and -1010 HU respectively; p < 0.05), as well as SD (89.3 HU, 21.1 HU and 20.9 HU respectively; p < 0.05).
In conclusion; increased air density in paranasal sinuses may aid in distinguishing acute from chronic
rhinosinusitis.
Keywords: Multidetector computed tomography; Rhinosinusitis, air density.

Keywords

ÇOK KESİTLİ BİLGİSAYARLI TOMOGRAFİ İLE AKUT RİNOSİNÜZİTİN KRONİK RİNOSİNÜZİTTEN AYIRT EDİLMESİ Differentiation of Acute Rhinosinusitis From Chronic Rhinosinusitis Using Multidetector Computed Tomography

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