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October 1983

A Computerized Nasal Analysis System

Author Affiliations

From the Departments of Otolaryngology/ Head and Neck Surgery, St Paul Ramsey Medical Center (Drs Hilger and Hilger) and the University of Minnesota Hospitals (Drs Hilger and Hilger), St Paul; Plastic Surgical Service, Melrose-Wakefield Hospital, Melrose, Mass (Dr Webster); the Department of Plastic Surgery, Massachusetts Eye and Ear Infirmary, Boston (Dr Webster); and the Department of Plastic, Aesthetic, and Cosmetic Surgery, PC, Brookline, Mass (Mr Smith).

Arch Otolaryngol. 1983;109(10):653-661. doi:10.1001/archotol.1983.00800240019004

• Critical analysis of an aesthetic surgeon's presurgical and postsurgical photographs may provide an excellent tool for self-assessment, research, and teaching. Techniques are presented that allowed precise definition by personnel other than the surgeon of each patient's deformities and the effects of surgery on them. Trigonometric formulas were developed and a computer was programmed to use the X and Y coordinates for facial landmarks to perform many calculations providing distances, angles, projections, and rotations relating to the rhinoplastic surgery. Cases are reported showing typical changes and some results not readily apparent in the photographs. Such data provide not only current analysis of individual cases, but they eventually will become a large data base that may be used to select groups of rhinoplastic cases having common degrees of deformity or of postoperative changes.

(Arch Otolaryngol 1983;109:653-661)