CTA Head With IV Contrast CTA of the head is a rapid and highly sensitive means of evaluating the intracranial vasculature for underlying intracranial atherosclerosis, LVO, and other intracranial steno-occlusive diseases, which may be useful in the management of late presenting strokes, although this is controversial [22,23,69]. However, the urgency of diagnosis of the underlying etiology is less well defined. Moreover, similar information can be obtained from MRA of the head, when there is no need for rapid triage and vascular diagnosis. CTA Neck With IV Contrast CTA of the neck is a rapid and highly sensitive means of evaluating the extracranial vasculature underlying carotid stenosis and other steno-occlusive disease of the cervical vasculature, which is useful in the management of late presenting strokes. However, the urgency of diagnosis of the underlying etiology is less well defined. Moreover, similar information can be obtained from MRA of the head, when there is no need for rapid triage and vascular diagnosis. 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]. CTV Head With IV Contrast There is no relevant literature to support the use of CTV head in the evaluation of ischemic stroke in the absence of suspicion for CVT. MRA Head Without and With IV Contrast There is no relevant literature to support the use of contrast-enhanced MRA of the head in the evaluation of ischemic stroke.
Cerebrovascular Diseases Stroke and Stroke Related Conditions PCAs. CTA Head With IV Contrast CTA of the head is a rapid and highly sensitive means of evaluating the intracranial vasculature for underlying intracranial atherosclerosis, LVO, and other intracranial steno-occlusive diseases, which may be useful in the management of late presenting strokes, although this is controversial [22,23,69]. However, the urgency of diagnosis of the underlying etiology is less well defined. Moreover, similar information can be obtained from MRA of the head, when there is no need for rapid triage and vascular diagnosis. CTA Neck With IV Contrast CTA of the neck is a rapid and highly sensitive means of evaluating the extracranial vasculature underlying carotid stenosis and other steno-occlusive disease of the cervical vasculature, which is useful in the management of late presenting strokes. However, the urgency of diagnosis of the underlying etiology is less well defined. Moreover, similar information can be obtained from MRA of the head, when there is no need for rapid triage and vascular diagnosis. 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]. CTV Head With IV Contrast There is no relevant literature to support the use of CTV head in the evaluation of ischemic stroke in the absence of suspicion for CVT. MRA Head Without and With IV Contrast There is no relevant literature to support the use of contrast-enhanced MRA of the head in the evaluation of ischemic stroke.