MRV Head Without and With IV Contrast There is no relevant literature to support the use of MRV of the head without and with IV contrast in the evaluation of ischemic stroke in the absence of suspicion for CVT. MRV Head Without IV Contrast There is no relevant literature to support the use of MRV of the head without IV contrast in the evaluation of ischemic stroke in the absence of suspicion for CVT. Cerebrovascular Diseases-Stroke US Duplex Doppler Carotid Artery Duplex carotid Doppler is a very useful screening test in the evaluation of the extracranial vasculature for carotid stenosis in delayed presenting strokes, due to the high degree of accuracy in evaluating the degree of carotid stenosis in the absence of multifocal disease and the absence of time pressure of EVT candidacy associated with delayed presenting strokes [38]. Current AHA guidelines recommend noninvasive imaging of the cervical carotid arteries for patients with minor stroke who are candidates for CEA or stenting, within 24 hours of hospitalization or 48 hours of onset due to the high early risk of recurrent stroke in patients with symptomatic carotid stenosis [12,13]. US Duplex Doppler Transcranial Transcranial Doppler may be useful, both in the detection of microembolic events and in the detection of intracranial vascular pathology. However, this is typically not an initial imaging test in the setting of stroke. Variant 6: Adult. Known intraparenchymal hemorrhage. No history of trauma. Follow-up imaging study. IPH may complicate many cerebrovascular and systemic conditions including hypertension, cerebral amyloid angiopathy, coagulopathy, arteriovenous malformation, dural arteriovenous fistula, CVT, cortical venous thrombosis, aneurysm, certain primary central nervous system neoplasms, cerebral hyperperfusion syndromes in the setting of carotid revascularization, metastatic disease, cavernous malformations, prior ischemic infarct, and Moyamoya disease [86].
Cerebrovascular Diseases Stroke and Stroke Related Conditions PCAs. MRV Head Without and With IV Contrast There is no relevant literature to support the use of MRV of the head without and with IV contrast in the evaluation of ischemic stroke in the absence of suspicion for CVT. MRV Head Without IV Contrast There is no relevant literature to support the use of MRV of the head without IV contrast in the evaluation of ischemic stroke in the absence of suspicion for CVT. Cerebrovascular Diseases-Stroke US Duplex Doppler Carotid Artery Duplex carotid Doppler is a very useful screening test in the evaluation of the extracranial vasculature for carotid stenosis in delayed presenting strokes, due to the high degree of accuracy in evaluating the degree of carotid stenosis in the absence of multifocal disease and the absence of time pressure of EVT candidacy associated with delayed presenting strokes [38]. Current AHA guidelines recommend noninvasive imaging of the cervical carotid arteries for patients with minor stroke who are candidates for CEA or stenting, within 24 hours of hospitalization or 48 hours of onset due to the high early risk of recurrent stroke in patients with symptomatic carotid stenosis [12,13]. US Duplex Doppler Transcranial Transcranial Doppler may be useful, both in the detection of microembolic events and in the detection of intracranial vascular pathology. However, this is typically not an initial imaging test in the setting of stroke. Variant 6: Adult. Known intraparenchymal hemorrhage. No history of trauma. Follow-up imaging study. IPH may complicate many cerebrovascular and systemic conditions including hypertension, cerebral amyloid angiopathy, coagulopathy, arteriovenous malformation, dural arteriovenous fistula, CVT, cortical venous thrombosis, aneurysm, certain primary central nervous system neoplasms, cerebral hyperperfusion syndromes in the setting of carotid revascularization, metastatic disease, cavernous malformations, prior ischemic infarct, and Moyamoya disease [86].