The evaluation of vocal cord function can be problematic in the presence of oropharyngeal tumors, hypopharyngeal tumors, and supraglottic lesions and in noncompliant adult and pediatric patients. The use of computer image subtraction techniques coupled with digital fluoroscopy has inherent high-quality resolution that can provide an excellent image of vocal cord symmetry and movement. The use of air as the contrast medium provides the ability to measure the extent of vocal cord excursion as well as the extent of piriform sinus lesions. In addition, it is a noninvasive procedure that requires a minimal imaging exposure time, with the result that the patient undergoes minimal radiation exposure.
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References
1.
KinneySEModicMTStarnesDWeinsteinMADuchesneauP: Digital subtraction angiography of lesions of the head and neck. Laryngoscope92: 557–561, 1982.
2.
MillerRWCarmeddyRFSegerJSCoulthardSSmithJRLKoopmanCF: Digital subtraction angiography: Applications in otolaryngology/head and neck surgery. Head Neck Surg5: 280–292, 1983.
3.
MontgomeryWW: Endoscopy and surgery of the larynx and trachea. Radiol Clin North Am16: 219–226, 1978.
4.
BrownBMEnzmannDRHoppMLCastellinoRA: Digital subtraction laryngography. Radiology147: 655–657, 1983.
5.
WardPHHanafeeWMancusoAAShallitJBerciG: Evaluation of computerized tomography, cinelaryngoscopy, and laryngography in determining the extent of laryngeal disease. Ann Otol Rhinol Laryngol88: 454–456, 1979.
6.
GamsuGWebbWRShalitJBMossA: CT in carcinoma of the larynx and pyriform sinus: Value of phonation scans. Am J Radiol136: 577–584, 1981.
