Usefulness of three-dimensional computed tomography of the larynx for evaluation of unilateral vocal fold paralysis before and after treatment: technique and clinical applications.
Laryngoplasty is well-known technique for unilateral vocal fold paralysis (UVFP). However, operation result are sometimes not as good as expected before surgery. Three-dimensional Computed tomography (3DCT) is useful for visualizing complicated intralaryngeal structures. Moreover, 3DCT is suited for analyzing the movement of the vocal fold and arytenoid cartilage because the technique is based on actual data from live patients. We have been used 3DCT of the Larynx for evaluation of UVFP before and after treatment. We uncovered some new findings about UVFP and reasons of unsatisfactory outcomes after operation. Technique and clinical applications of 3DCT for UVFP are outlined in this paper.
Hiramatsu
Hiroyuki
H
Department of Otolaryngology, Tokyo Medical University Hospital, Tokyo 160-0023, Japan. hiro441741@aa.cyberhome.ne.jp
Tokashiki
Ryoji
R
Suzuki
Mamoru
M
D000368:Aged; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D021621:Imaging, Three-Dimensional / Q000379:methods*; D007830:Larynx / Q000000981:diagnostic imaging* / Q000503:physiopathology / Q000601:surgery; D008297:Male; D008875:Middle Aged; D011182:Postoperative Care / Q000379:methods*; D011300:Preoperative Care / Q000379:methods*; D019651:Plastic Surgery Procedures / Q000379:methods*; D012720:Severity of Illness Index; D014057:Tomography, X-Ray Computed / Q000379:methods*; D014826:Vocal Cord Paralysis / Q000000981:diagnostic imaging* / Q000503:physiopathology / Q000601:surgery; D014833:Voice Quality