J Korean Radiol Soc.  1994 Jan;30(1):33-38.

Role of 3-D CT Reconstruction of Laryngeal IVlucosal Surface in Preoperative Staging of Laryngeal Cancer

• Kim BS
• Lee YJ
• Nam SH
• Park JY
• Sol CH
• Kim KI
• Wang SG

Abstract

PURPOSE
CT or MRT is performed in preoperative staging of laryngeal cancer. These methods are used in assessment of the deep tissues and cartilage of the larynx, but cannot compete with laryngoscopy in the evaluation of the laryngeal surface. The purpose of this study is to evaluate feasibilty and clinical value of the 3-D reconstruction of the mucosal surface in laryngeal cancer.
METHODS
AND MATERIALS: Twenty two patients with laryngeal cancer proved by means of surgical.exploration (pathologic) or clinical examinations including laryngoscope, imaging studies and biopsy underwent preoperative staging with computed tomography(G-P);and three dimensional(3D) CT reconstruction. The TNM classification of the American Joint Committee on Cancer was used to compare the imaging findings with pathologic or clinical staging.
RESULTS
When the extension of primary tumor(T staging) was evaluated, the findings at only transaxial CT and those at pathologic or clinical examination were concordant in 8 of 14 cases(57.1%) of supraglottic tumor, and 3 of 6 cases(50%) of glottic tumor. The overall accuracy of CT with additional 3D-reconstruction was 85.7% for assessment of supraglottic tumor, and 66.6% for glottic tumor.
CONCLUSION
3D CT reconstruction after transaxial CT may improve outcome in preoperative staging of laryngeal cancer and has a potential value in guiding management decisions.

MeSH Terms

Biopsy
Cartilage
Classification
Humans
Joints
Laryngeal Neoplasms*
Laryngoscopes
Laryngoscopy
Larynx