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Dynamic maneuvers in local staging of head and neck malignancies with current imaging techniques: principles and clinical applications



Dynamic maneuvers in local staging of head and neck malignancies with current imaging techniques: principles and clinical applications



Radiographics 23(5): 1201-1213



Imaging has been widely demonstrated to be important in local staging of head and neck malignancies as a complement to clinical examination, including endoscopy. Recent developments in multidetector row computed tomography (CT) provide better anatomic resolution within a shorter acquisition time and wider anatomic coverage. However, in many cases lesions still remain undefined. In such cases, performance of dynamic maneuvers could provide useful information about the local extent of a tumor. The usefulness of dynamic maneuvers has increased with the improvement in temporal and spatial resolution that resulted from the most recent techniques of multidetector row CT. The puffed cheek technique and the modified Valsalva maneuver allow evaluation of a lesion that was poorly demonstrated owing to apposition of mucosal surfaces. In some cases, phonation improves demonstration of small lesions of the vocal cords and allows more precise anatomic localization. The open mouth technique allows demonstration of a lesion that was previously overlooked due to dental amalgam artifacts.

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Accession: 048840104

Download citation: RISBibTeXText

PMID: 12975510

DOI: 10.1148/rg.235025045


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