The European Headache Federation recommends vascular imaging especially when 3 consecutive preventative treatments fail [34]. CTV Head With IV Contrast There is no relevant literature to support the use of CTV head with IV contrast in the initial imaging evaluation of TACs. Brain CTV can be used as a follow-up imaging study in cases of suspected CVT, which is in the differential diagnosis for TACs, especially hemicrania continua. [30,31,33,34]. MRA Head With IV Contrast There is no relevant literature to support the use of MRA head with IV contrast in the initial imaging evaluation of TACs. MRA Head Without and With IV Contrast There is no relevant literature to support the use of MRA head without and with IV contrast in the initial imaging evaluation of TACs. MRA Head Without IV Contrast There is no relevant literature to support the use of MRA head without IV contrast in the initial imaging evaluation of TACs; it may have utility in follow-up evaluation after initial neuroimaging. Vascular lesions including carotid/vertebral dissections, AVMs, and aneurysms are a rare, secondary cause of TACs [30,31,33]. The European Headache Federation recommends vascular imaging especially when 3 consecutive preventative treatments fail [34]. MRI Head With IV Contrast There is no relevant literature to support the use of MRI head with IV contrast in the initial imaging evaluation of TACs; the most common recommendation for initial imaging evaluation is MRI head without and with IV contrast. MRI Head Without and With IV Contrast MRI head without and with IV contrast is the most common recommendation for initial imaging evaluation of TACs; it is useful to help exclude a secondary headache due to a sellar region or posterior fossa mass. MRI Head Without IV Contrast There is no relevant literature to support the use of MRI head without IV contrast in the initial imaging evaluation of TACs; the most common recommendation for initial imaging evaluation is MRI head without and with IV contrast.
Headache PCAs. The European Headache Federation recommends vascular imaging especially when 3 consecutive preventative treatments fail [34]. CTV Head With IV Contrast There is no relevant literature to support the use of CTV head with IV contrast in the initial imaging evaluation of TACs. Brain CTV can be used as a follow-up imaging study in cases of suspected CVT, which is in the differential diagnosis for TACs, especially hemicrania continua. [30,31,33,34]. MRA Head With IV Contrast There is no relevant literature to support the use of MRA head with IV contrast in the initial imaging evaluation of TACs. MRA Head Without and With IV Contrast There is no relevant literature to support the use of MRA head without and with IV contrast in the initial imaging evaluation of TACs. MRA Head Without IV Contrast There is no relevant literature to support the use of MRA head without IV contrast in the initial imaging evaluation of TACs; it may have utility in follow-up evaluation after initial neuroimaging. Vascular lesions including carotid/vertebral dissections, AVMs, and aneurysms are a rare, secondary cause of TACs [30,31,33]. The European Headache Federation recommends vascular imaging especially when 3 consecutive preventative treatments fail [34]. MRI Head With IV Contrast There is no relevant literature to support the use of MRI head with IV contrast in the initial imaging evaluation of TACs; the most common recommendation for initial imaging evaluation is MRI head without and with IV contrast. MRI Head Without and With IV Contrast MRI head without and with IV contrast is the most common recommendation for initial imaging evaluation of TACs; it is useful to help exclude a secondary headache due to a sellar region or posterior fossa mass. MRI Head Without IV Contrast There is no relevant literature to support the use of MRI head without IV contrast in the initial imaging evaluation of TACs; the most common recommendation for initial imaging evaluation is MRI head without and with IV contrast.