01 February 2012
Head and neck cancer: Value of perfusion CT in depicting primary tumor spread
Agnieszka TrojanowskaABCDEFG, Piotr TrojanowskiABCDEFG, Andrzej DropAG, Tomasz JargiełłoBEF, Janusz KlatkaBEGDOI: 10.12659/MSM.882466
Med Sci Monit 2012; 18(2): CR112-118
Abstract
Background: The aim of this study was to assess head and neck squamous cell cancer and surrounding tissue in computed tomography contrast enhanced and perfusion studies, and to examine the role of perfusion imaging in depiction of tissue infiltration.
Material/Methods: We prospectively evaluated 43 primary malignant head and neck tumors, using standard CT followed by perfusion. Blood flow, blood volume, mean transit time, and permeability values were obtained using regions of interest (ROIs) over lesions and surrounding tissue. Results were compared with histological analysis of resected tissue. Sensitivity, specificity, accuracy, positive and negative predictive values were calculated for both methods.
Results: We found significant differences between infiltrated and non-infiltrated tissue, especially with regard to muscles. In case of bone and salivary gland infiltration, change in perfusion parameters did not allow proper diagnosis.
Conclusions: CTP shows promise in depicting malignant infiltration. The combined use of CECT plus CTP results in correct staging of the majority of head and neck tumors.
Keywords: Prospective Studies, Head and Neck Neoplasms - radiotherapy, Carcinoma, Squamous Cell - radiotherapy, Sensitivity and Specificity, Tomography, X-Ray Computed - methods
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