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KMID : 0361020240670040251
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Korean Journal of Otolaryngology - Head and Neck Surgery
2024 Volume.67 No. 4 p.251 ~ p.255
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Definition of Nasal Valve Location and Classification of Nasal Valve Stenosis in Computed Tomography
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Cho Jae-Hoon
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Abstract
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Recently, there has been confusion about the definition of nasal valve stenosis. To resolve this,it is necessary to establish clearly the location of the nasal valve and the definition of nasalvalve stenosis. When scrolling the axial view from the top to the bottom, the angle betweenthe upper lateral cartilage and the septum gradually increases, and the vertex becomes round-ed. When the lower lateral cartilage is reached, the ceiling of the nasal cavity suddenly be-comes higher, so the section immediately before it can be defined as the nasal valve. Nasalvalve stenosis is classified as follows. If the difference between the diameters of the narrowand wide nasal valves is less than 1:3, it is normal, whereas if the difference is larger but somespace is observed, it is partial stenosis, and if no space is observed, it is complete stenosis.
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KEYWORD
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Classification, Computed tomography, Nasal valve, Nasal valve stenosis
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Listed journal information
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