Study Cohort
Sixteen adult subjects with computed tomography (CT) images were
selected based on a search of university medical records. The subjects
are from four racial/ethnic groups: African Americans (Blacks); East
Asians; Caucasians; and Latin Americans. The study cohort is made up of
eight males and eight females, four subjects from each racial/ethnic
group comprising of two males and two females. Inclusion criteria were
normal nasal anatomy; high resolution spiral CT scan images; and no
clinical evidence of nasal and/or sinonasal disease. CT images were
examined by an attending radiologist and an otolaryngologist to ensure
the nasal cavities of all subjects selected for this work had
radiographic evidence of normal nasal cavity.