ÇKBT Ile Akut Rinosinüzitin Kronik Rinosinüzitten Ayırt Edilmesi.
Bozok tıp dergisi(2019)
摘要
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.
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