CT Head Perfusion With IV Contrast For indicated imaging in patients with focal neurological deficits relative to cervicocerebral cervical dissections, please see Variants 1 to 5 for additional indicated imaging procedures. However, there is no literature to support the use of CTP as a routine surveillance imaging test in the ongoing evaluation of cervical artery dissections. CT Head With IV Contrast There is no relevant literature to support the use of contrast-enhanced CT of the head in the surveillance imaging of cervical vascular dissection. CT Head Without and With IV Contrast There is no relevant literature to support the use of contrast-enhanced CT of the head in the surveillance imaging of cervical vascular dissection. CT Head Without IV Contrast In the absence of ongoing symptoms, there is no literature to support routine surveillance imaging of the brain parenchyma in the setting of cervical vascular dissection. Noncontrast CT may be useful in the setting of a known dissection in the patient with ongoing or new symptoms to evaluate for new ischemic stroke and complications such as hemorrhagic conversion, mass effect, and herniation or in the exclusion of ICH in the setting of ongoing medical treatment of vascular dissections. However, MRI is much more sensitive in evaluating recent strokes. CTA Head With IV Contrast There is no literature to support CTA of the head in the routine surveillance of known dissections isolated to the cervical vasculature. CTA of the head may be useful in the surveillance of cervical vascular dissections that are known to extend into the intracranial vasculature. CTA of the head may also be useful for the evaluation of intracranial collaterals of the circle of Willis and excluding associated intracranial LVO in patients with ongoing symptoms, which is important in stroke risk stratification and treatment strategies.
Cerebrovascular Diseases Stroke and Stroke Related Conditions PCAs. CT Head Perfusion With IV Contrast For indicated imaging in patients with focal neurological deficits relative to cervicocerebral cervical dissections, please see Variants 1 to 5 for additional indicated imaging procedures. However, there is no literature to support the use of CTP as a routine surveillance imaging test in the ongoing evaluation of cervical artery dissections. CT Head With IV Contrast There is no relevant literature to support the use of contrast-enhanced CT of the head in the surveillance imaging of cervical vascular dissection. CT Head Without and With IV Contrast There is no relevant literature to support the use of contrast-enhanced CT of the head in the surveillance imaging of cervical vascular dissection. CT Head Without IV Contrast In the absence of ongoing symptoms, there is no literature to support routine surveillance imaging of the brain parenchyma in the setting of cervical vascular dissection. Noncontrast CT may be useful in the setting of a known dissection in the patient with ongoing or new symptoms to evaluate for new ischemic stroke and complications such as hemorrhagic conversion, mass effect, and herniation or in the exclusion of ICH in the setting of ongoing medical treatment of vascular dissections. However, MRI is much more sensitive in evaluating recent strokes. CTA Head With IV Contrast There is no literature to support CTA of the head in the routine surveillance of known dissections isolated to the cervical vasculature. CTA of the head may be useful in the surveillance of cervical vascular dissections that are known to extend into the intracranial vasculature. CTA of the head may also be useful for the evaluation of intracranial collaterals of the circle of Willis and excluding associated intracranial LVO in patients with ongoing symptoms, which is important in stroke risk stratification and treatment strategies.