CT Neck With IV Contrast Although protocols vary across institutions, for the purposes of this document, CT of the neck includes coverage from the top of the frontal sinuses down to the level of the aortic arch, with thin slices, multiplanar reformats, and both soft tissue and bony algorithms. CECT of the neck allows for the detection and localization of recurrent sinonasal tumors, treatment response assessment, and regional nodal staging. CT provides excellent delineation of the sinonasal skeleton and is superior to MRI in the depiction of osseous anatomy [96]. The presence of skull base foraminal widening, which can be detected on thin-section CT and reconstructions, may alert to perineural tumor spread [96]. Evaluation of the treated neck is very often complicated by significant treatment-related changes that can be difficult to distinguish from persistent disease after therapy or recurrence. MRI confers improved soft tissue contrast over CT and is generally the preferred imaging modality for evaluating for sinonasal recurrence. However, CT is often used to monitor treatment changes and assess for treatment complications such as infection or osteoradionecrosis. Contrast enhancement is imperative in order to correctly identify and delineate recurrence, distinguishing it from treatment changes. Assessment of Head and Neck Cancer CT Neck Without and With IV Contrast There is no relevant literature to support the use of CT neck without and with IV contrast for evaluation of suspected or known recurrence of treated cancer of the paranasal sinuses or nasal cavity. CT Neck Without IV Contrast There is no relevant literature to support the use of CT neck without IV contrast for evaluation of suspected or known recurrence of treated cancer of the paranasal sinuses or nasal cavity. Contrast enhancement is imperative in order to correctly identify and delineate recurrence, distinguishing it from treatment changes.
Staging and Post Therapy Assessment of Head and Neck Cancer. CT Neck With IV Contrast Although protocols vary across institutions, for the purposes of this document, CT of the neck includes coverage from the top of the frontal sinuses down to the level of the aortic arch, with thin slices, multiplanar reformats, and both soft tissue and bony algorithms. CECT of the neck allows for the detection and localization of recurrent sinonasal tumors, treatment response assessment, and regional nodal staging. CT provides excellent delineation of the sinonasal skeleton and is superior to MRI in the depiction of osseous anatomy [96]. The presence of skull base foraminal widening, which can be detected on thin-section CT and reconstructions, may alert to perineural tumor spread [96]. Evaluation of the treated neck is very often complicated by significant treatment-related changes that can be difficult to distinguish from persistent disease after therapy or recurrence. MRI confers improved soft tissue contrast over CT and is generally the preferred imaging modality for evaluating for sinonasal recurrence. However, CT is often used to monitor treatment changes and assess for treatment complications such as infection or osteoradionecrosis. Contrast enhancement is imperative in order to correctly identify and delineate recurrence, distinguishing it from treatment changes. Assessment of Head and Neck Cancer CT Neck Without and With IV Contrast There is no relevant literature to support the use of CT neck without and with IV contrast for evaluation of suspected or known recurrence of treated cancer of the paranasal sinuses or nasal cavity. CT Neck Without IV Contrast There is no relevant literature to support the use of CT neck without IV contrast for evaluation of suspected or known recurrence of treated cancer of the paranasal sinuses or nasal cavity. Contrast enhancement is imperative in order to correctly identify and delineate recurrence, distinguishing it from treatment changes.