CTA Head and Neck There is no relevant literature to support the use of CTA in the initial imaging evaluation of acute head trauma without suspected vascular injury (see Variants 8 and 9 when suspected). FDG-PET/CT Brain There is no relevant literature to support the use of FDG-PET/CT in the initial imaging evaluation of acute head trauma. HMPAO SPECT or SPECT/CT Brain There is no relevant literature to support the use of SPECT in the initial imaging evaluation of acute head trauma. MR Spectroscopy Head There is no relevant literature to support the use of MRS in the initial imaging evaluation of acute head trauma. MRA Head and Neck There is no relevant literature to support the use of MRA in the initial imaging evaluation of acute head trauma. MRI Functional (fMRI) Head There is no relevant literature to support the use of fMRI in the initial imaging evaluation of acute head trauma. MRI Head There is no relevant literature to support the use of MRI in the initial imaging evaluation of acute head trauma (please see Variant 4 for discussion of MRI after negative head CT). MRI Head with DTI There is no relevant literature to support the use of DTI in the initial imaging evaluation of acute head trauma. Radiography Skull There is no relevant literature to support the use of radiographs in the initial imaging evaluation of acute head trauma (replaced by CT, which is more sensitive for neurosurgical lesions). Head Trauma Arteriography Cervicocerebral There is no relevant literature to support the use of catheter angiography in the initial imaging evaluation of acute head trauma. CT Head Head CT is useful for the evaluation of moderate, severe, or penetrating acute head trauma. Multiplanar reformatted images have been shown to increase diagnostic accuracy and should be included [16,17].
Head Trauma PCAs. CTA Head and Neck There is no relevant literature to support the use of CTA in the initial imaging evaluation of acute head trauma without suspected vascular injury (see Variants 8 and 9 when suspected). FDG-PET/CT Brain There is no relevant literature to support the use of FDG-PET/CT in the initial imaging evaluation of acute head trauma. HMPAO SPECT or SPECT/CT Brain There is no relevant literature to support the use of SPECT in the initial imaging evaluation of acute head trauma. MR Spectroscopy Head There is no relevant literature to support the use of MRS in the initial imaging evaluation of acute head trauma. MRA Head and Neck There is no relevant literature to support the use of MRA in the initial imaging evaluation of acute head trauma. MRI Functional (fMRI) Head There is no relevant literature to support the use of fMRI in the initial imaging evaluation of acute head trauma. MRI Head There is no relevant literature to support the use of MRI in the initial imaging evaluation of acute head trauma (please see Variant 4 for discussion of MRI after negative head CT). MRI Head with DTI There is no relevant literature to support the use of DTI in the initial imaging evaluation of acute head trauma. Radiography Skull There is no relevant literature to support the use of radiographs in the initial imaging evaluation of acute head trauma (replaced by CT, which is more sensitive for neurosurgical lesions). Head Trauma Arteriography Cervicocerebral There is no relevant literature to support the use of catheter angiography in the initial imaging evaluation of acute head trauma. CT Head Head CT is useful for the evaluation of moderate, severe, or penetrating acute head trauma. Multiplanar reformatted images have been shown to increase diagnostic accuracy and should be included [16,17].