Laryngeal obstruction assessed by computed tomography.
The aim of this study was to find out if laryngeal obstruction could be assessed by measuring the glottic area using computed tomography (CT). Results from model studies were compared with those from twelve patients with laryngeal diseases. Determination of the orolaryngeal airway resistance (Rol) was used as a reference method. The correlation between airway resistance and area in both the model and among the patients was consistent, with a curvilinear relationship. The results indicate that it is possible to measure the area of a short obstruction by CT and that this area determines the degree of obstruction.
Geterud
A
A
Department of Otorhinolaryngology, University of Göteborg, Sahlgrenska Sjukhuset, Sweden.
Ejnell
H
H
Berthelsen
B
B
Sandberg
N
N
Bake
B
B
D000368:Aged; D000403:Airway Resistance; D005260:Female; D005931:Glottis / Q000000981:diagnostic imaging; D006801:Humans; D007817:Laryngeal Cartilages / Q000000981:diagnostic imaging; D007818:Laryngeal Diseases / Q000000981:diagnostic imaging*; D008297:Male; D008875:Middle Aged; D014057:Tomography, X-Ray Computed; D014826:Vocal Cord Paralysis / Q000000981:diagnostic imaging*