| Diagnostic Value of Zonogram in Unilateral Vocal Cord Paralysis |
| Kwang Moon Kim MD1, Hong Shik Choi, MD1, Won Pyo Hong, MD1, Gill Ryoung Kim, MD1, Jae Young Kim, MD1, and Ki Keun Oh, MD2 |
| 1;Department of Otolaryngology, 2;Radiology, Yonsei University, College of Medicine, Korea |
| 편측 성대마비에서 Zonogram의 진단적 가치 |
| 김광문1 · 최홍식1 · 홍원표1 · 김기령1 · 김재영1 · 오기근2 |
| 연세대학교 의과대학 이비인후과학교실1;방사선과학교실2; |
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| ABSTRACT |
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Zonographic studies were made on 10 patients with unilateral paralysis of the vocal cord. Each study was performed in inspiration, and expiration. ""E"" phonation and Valsalva maneuver. The following results were obtained from the study. 1) The level of the paralyzed cord was same or lower in inspiration & Valsalva maneuver, same or higher in expiration, same or higher except 1 case in ""E"" phonation. 2) The ventricle size of paralyzed site was enlarged in most of the cases. 3) The thickness of the paralyzed cord was thinner in most of the cases. 4) The vocal cord angle of paralyzed site was same or decreased in inspiration & Valsalva maneuver, same or increased except 1 case in expiration, same or increased in ""E"" phonation. 5) 6 cases(60%) showed the compensatory shifting of non-paralyzed cord in ""E"" phonation.
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