Abstract
Objective:To correlate abnormal bone density of sinus wall with impaired drainage of sinus cavity. Method:A retrospective radiological study was conducted:pre-operative CT scans of 210 patients with chronic rhinosinusitis(CRS) and CT scans of 40 age-and gender-matched individuals(normal group) without sinonasal disease were reviewed. Opacification of the paranasal sinuses and the radiological density of sinus wall were evaluated and analyzed using PHILIPS MxLite View software. Result:The Hounsfield Units obtained from the lamina papyracea in opaque anterior ethmoid sinus and posterior ethomid sinus were statistically significantly higher than that of the no opacification population in AES and PES and that of the normal group. Secondly, the Hounsfield Units of posterior wall in the opaque frontal sinus in patients with CRS were statistically significantly higher than that of the no opacification CRS patient group and the normal group. Conclusion:Inflammatory bone density changes in CRS patients were observed in the opaque sinuses, and few were found in the sinuses that were not opaque sinuses, suggesting that osteitis mainly occurs in sinuses with drainage disorder or mucosa disease. These change implied that HU change might be a mark of intractable disease and surgery.
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