Headache MRV Head With IV Contrast There is no relevant literature to support the use of MRV head with IV contrast in the initial imaging evaluation of TACs. Brain MRV 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]. MRV Head Without and With IV Contrast There is no relevant literature to support the use of MRV head without and with IV contrast in the initial imaging evaluation of TACs. Brain MRV 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]. MRV Head Without IV Contrast There is no relevant literature to support the use of MRV head without IV contrast in the initial imaging evaluation of TACs. Brain MRV 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]. Variant 4: Headache with features of intracranial hypertension (eg, papilledema, pulsatile tinnitus, visual symptoms worse on Valsalva). Initial imaging. Headache attributed to increased cerebrospinal fluid (CSF) pressure can be accompanied by nausea/vomiting and exacerbated by the Valsalva maneuver (inhibits venous return) or by lying down (redistributes CSF into head). Elevated intracranial pressure can be due to various secondary etiologies such as structural lesions including mass, hydrocephalus, and venous sinus thrombosis [35]. Primary idiopathic intracranial hypertension (IIH), also known previously as pseudotumor cerebri, is characterized as an elevation of intracranial pressure with no identifiable cause. The etiology remains unknown. IIH predominantly impacts women, especially obese women of childbearing age. The prevalence of IIH in the general population ranges between 0.5 and 2 per 100,000. Due to the overlap of symptoms with several other primary headache syndromes, IIH is likely underdiagnosed.
Headache PCAs. Headache MRV Head With IV Contrast There is no relevant literature to support the use of MRV head with IV contrast in the initial imaging evaluation of TACs. Brain MRV 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]. MRV Head Without and With IV Contrast There is no relevant literature to support the use of MRV head without and with IV contrast in the initial imaging evaluation of TACs. Brain MRV 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]. MRV Head Without IV Contrast There is no relevant literature to support the use of MRV head without IV contrast in the initial imaging evaluation of TACs. Brain MRV 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]. Variant 4: Headache with features of intracranial hypertension (eg, papilledema, pulsatile tinnitus, visual symptoms worse on Valsalva). Initial imaging. Headache attributed to increased cerebrospinal fluid (CSF) pressure can be accompanied by nausea/vomiting and exacerbated by the Valsalva maneuver (inhibits venous return) or by lying down (redistributes CSF into head). Elevated intracranial pressure can be due to various secondary etiologies such as structural lesions including mass, hydrocephalus, and venous sinus thrombosis [35]. Primary idiopathic intracranial hypertension (IIH), also known previously as pseudotumor cerebri, is characterized as an elevation of intracranial pressure with no identifiable cause. The etiology remains unknown. IIH predominantly impacts women, especially obese women of childbearing age. The prevalence of IIH in the general population ranges between 0.5 and 2 per 100,000. Due to the overlap of symptoms with several other primary headache syndromes, IIH is likely underdiagnosed.