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ORIGINAL ARTICLE
Year : 2016  |  Volume : 1  |  Issue : 2  |  Page : 17-23

Role of dynamic multidetector computed tomography using 'eee' phonation in the diagnosis of various laryngeal lesions


1 Department of Diagnostic Radiology, Faculty of Medicine, Assiut University, Assiut, Egypt
2 Department of Otolaryngology and Phoniatrics, Faculty of Medicine, Assiut University, Assiut, Egypt

Correspondence Address:
Shimaa Farghaly
Radiology Department, Assiut University Hospital, Assiut, Postal Code: 71111
Egypt
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/2357-0121.192540

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Objective The aim of the study was to determine the effectiveness of dynamic multidetector computed tomography (MDCT) using 'eee' phonation in the detection and delineation of extension of various laryngeal lesions in comparison with conventional nonfunctional MDCT. Patients and methods The study included 60 patients with suspected laryngeal pathology who underwent precontrast and both prephonation and during-phonation contrast-enhanced MDCT. Each imaging study was evaluated for pyriform sinus and ventricle involvement, vocal cord mobility, and local tumor staging of malignant laryngeal lesions. All patients subsequently underwent direct laryngoscopy. Detailed endoscopic findings were reported and compared with MDCT findings. Results Dynamic MDCT using 'eee' phonation is effective in the assessment of pyriform sinus and ventricle involvement with high sensitivity (100% for both), high specificity (97.83 and 97.44%, respectively), and high accuracy (98.3% for both), compared with lower accuracy of conventional nonfunctional MDCT, which is 78.3% and 93.3%, respectively. It is also highly accurate in the assessment of vocal cord mobility (94.6%) and it increases the accuracy of MDCT in local tumor staging of malignant laryngeal lesions to 80.4% compared with 76.1% accuracy of conventional nonfunctional MDCT. Conclusion Dynamic MDCT using 'eee' phonation is effective in the detection and delineation of extension of various laryngeal lesions and is more accurate than conventional nonfunctional MDCT.


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