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Color duplex echography in head and neck cancer
R M Leuwer1, M Westhofen, G Schade
1ENT-Clinic, Hamburg University Medical School (Eppendorf University Hospital), Germany.
American Journal of Otolaryngology
|July 1, 1997
Summary
Low-flow color duplex echography effectively stages head and neck cancers, offering high resolution and noninvasive imaging. This technique provides valuable preoperative information for ENT-oncology, improving tumor staging accuracy.
Area of Science:
- Oncology
- Medical Imaging
- Diagnostic Technology
Background:
- Head and neck cancers require accurate staging for effective treatment planning.
- Noninvasive imaging modalities are crucial for preoperative assessment.
Purpose of the Study:
- To evaluate the utility of low-flow color duplex echography in staging head and neck cancers.
- To determine the sensitivity and predictive value of this imaging technique.
Main Methods:
- Fifty-two patients with squamous cell carcinoma of the oral cavity, oropharynx, and hypopharynx were examined.
- Low-flow color duplex echography with Doppler spectrum measurement was performed using a Siemens Q 2000 duplex scan.
- Both grayscale and color Doppler imaging were utilized.
Main Results:
- Echography detected 90% of primary tumors, with a 96% predictive value for tumor size.
- Poor vascularization was noted in most carcinomas and metastases.
- Imaging of tumor vessels improved tumor border estimation and provided crucial information for N staging.
Conclusions:
- Low-flow color duplex echography is a high-resolution, noninvasive imaging technique.
- It offers significant additional information for preoperative head and neck tumor staging.
- Routine application in ENT-oncology is recommended.