Prospective diagnostic study to determine the diagnostic accuracy of preoperative 18F--fluorodeoxyglucose (FDG) positron emission tomography/computed tomography (PET/CT) in detecting local tumor extent, cervical lymph node metastases and distant metastases/secondary primary tumor.
Study Type
OBSERVATIONAL
Enrollment
265
Department of Cranio- and Maxillofacial Surgery
Würzburg, Germany
Diagnostic accuracy of FGD-PET/CT to detect the primary tumor
Visual assessment of FDG-PET/CT will be performed according to current guidelines. The localization, expansion, and infiltration of osseous structures will be recorded. The outcome measure is the correct diagnosis (1 = correct; 0 = false) with regards to the histopathological analysis. The outcome measure will then be used to calculate the diagnostic accuracy of FDG-PET/CT to detect the primary tumor.
Time frame: 2013-2018
Diagnostic accuracy of FGD-PET/CT to detect lymph nodes metastases
Visual assessment of FDG-PET/CT will be performed according to current guidelines. The presence and number of nodal metastasis will be recorded for each cervical lymph node level. The outcome measure is the correct diagnosis (1 = correct; 0 = false) with regards to the histopathological analysis. The analysis will be performed on a patient level (lymph node metastasis yes/no), on the nodal metastatic involvement of cervical sides and lymph node levels. The outcome measure will then be used to calculate the diagnostic accuracy of FDG-PET/CT to detect lymph node metastases.
Time frame: 2013-2018
Diagnostic accuracy of FGD-PET/CT to detect distant lymph node metastases.
Visual assessment of FDG-PET/CT will be performed according to current guidelines. The presence, localization and number of distant nodal metastasis will be recorded. The outcome measure is the correct diagnosis (1 = correct; 0 = false) with regards to the histopathological analysis. The outcome measure will then be used to calculate the diagnostic accuracy of FDG-PET/CT to detect lymph node metastases.
Time frame: 2013-2018
Diagnostic accuracy of MRI to detect the primary tumor
Visual assessment of MRI will be performed according to current guidelines. The localization, expansion, and infiltration of osseous structures will be recorded. The outcome measure is the correct diagnosis (1 = correct; 0 = false) with regards to the histopathological analysis. The outcome measure will then be used to calculate the diagnostic accuracy of MRI to detect the primary tumor.
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Time frame: 2013-2018
Diagnostic accuracy of MRI to detect lymph nodes metastases
Visual assessment of MRI will be performed according to current guidelines. The presence and number of nodal metastasis will be recorded for each cervical lymph node level. The outcome measure is the correct diagnosis (1 = correct; 0 = false) with regards to the histopathological analysis. The analysis will be performed on a patient level (lymph node metastasis yes/no), on the nodal metastatic involvement of cervical sides and lymph node levels. The outcome measure will then be used to calculate the diagnostic accuracy of MRI to detect lymph node metastases.
Time frame: 2013-2018
Diagnostic accuracy of CT to detect the primary tumor
Visual assessment of CT will be performed according to current guidelines. The localization, expansion, and infiltration of osseous structures will be recorded. The outcome measure is the correct diagnosis (1 = correct; 0 = false) with regards to the histopathological analysis. The outcome measure will then be used to calculate the diagnostic accuracy of CT to detect the primary tumor.
Time frame: 2013-2018
Diagnostic accuracy of CT to detect lymph nodes metastases
Visual assessment of CT will be performed according to current guidelines. The presence and number of nodal metastasis will be recorded for each cervical lymph node level. The outcome measure is the correct diagnosis (1 = correct; 0 = false) with regards to the histopathological analysis. The analysis will be performed on a patient level (lymph node metastasis yes/no), on the nodal metastatic involvement of cervical sides and lymph node levels. The outcome measure will then be used to calculate the diagnostic accuracy of CT to detect lymph node metastases.
Time frame: 2013-2018
Diagnostic accuracy of CT to detect distant lymph node metastases.
Visual assessment of CT will be performed according to current guidelines. The presence, localization and number of distant nodal metastasis will be recorded. The outcome measure is the correct diagnosis (1 = correct; 0 = false) with regards to the histopathological analysis. The outcome measure will then be used to calculate the diagnostic accuracy of CT to detect lymph node metastases.
Time frame: 2013-2018