MRI Head Perfusion With IV Contrast Some studies demonstrate a possible role for perfusion imaging in prognostic evaluation of the ischemic penumbra in the setting of CVT [100]. Although perfusion imaging is not the most appropriate initial imaging study, ASL perfusion is often acquired with conventional brain MRI as part of the diagnostic workup. MRI Head Without and With IV Contrast MRI of the head is a useful initial examination in the workup of CVT. MRI of the head is useful not only for evaluation of the extent of cytotoxic and vasogenic edema but also in the initial detection of petechial hemorrhage and the actual thrombus in many cases. Contrast is not always required for structural brain imaging but adds to the overall MRI evaluation of venous sinus thrombosis [102] and is commonly administered when MRI is performed together with MRV. Noncontrast black blood thrombus imaging may approach the accuracy of contrast-enhanced MRV and negate the need for either MRV or contrast-enhanced examination, but it is less well-validated in clinical practice [103]. MRI Head Without IV Contrast MRI of the head is a useful initial examination in the workup of CVT. MRI of the head is useful not only for evaluation of the extent of cytotoxic and vasogenic edema but also in the initial detection of petechial hemorrhage and the actual thrombus in many cases. Contrast is not always required for structural brain imaging but adds to the overall MRI evaluation of venous sinus thrombosis [102] and is commonly administered when MRI is performed together with MRV. Noncontrast black blood thrombus imaging may approach the accuracy of contrast-enhanced MRV and negate the need for either MRV or contrast-enhanced examination, but it is less well-validated in clinical practice [103]. Cerebrovascular Diseases-Stroke MRV Head Without and With IV Contrast MRV of the head along with MRI of the head is an essential component of the workup of CVT in most cases.
Cerebrovascular Diseases Stroke and Stroke Related Conditions PCAs. MRI Head Perfusion With IV Contrast Some studies demonstrate a possible role for perfusion imaging in prognostic evaluation of the ischemic penumbra in the setting of CVT [100]. Although perfusion imaging is not the most appropriate initial imaging study, ASL perfusion is often acquired with conventional brain MRI as part of the diagnostic workup. MRI Head Without and With IV Contrast MRI of the head is a useful initial examination in the workup of CVT. MRI of the head is useful not only for evaluation of the extent of cytotoxic and vasogenic edema but also in the initial detection of petechial hemorrhage and the actual thrombus in many cases. Contrast is not always required for structural brain imaging but adds to the overall MRI evaluation of venous sinus thrombosis [102] and is commonly administered when MRI is performed together with MRV. Noncontrast black blood thrombus imaging may approach the accuracy of contrast-enhanced MRV and negate the need for either MRV or contrast-enhanced examination, but it is less well-validated in clinical practice [103]. MRI Head Without IV Contrast MRI of the head is a useful initial examination in the workup of CVT. MRI of the head is useful not only for evaluation of the extent of cytotoxic and vasogenic edema but also in the initial detection of petechial hemorrhage and the actual thrombus in many cases. Contrast is not always required for structural brain imaging but adds to the overall MRI evaluation of venous sinus thrombosis [102] and is commonly administered when MRI is performed together with MRV. Noncontrast black blood thrombus imaging may approach the accuracy of contrast-enhanced MRV and negate the need for either MRV or contrast-enhanced examination, but it is less well-validated in clinical practice [103]. Cerebrovascular Diseases-Stroke MRV Head Without and With IV Contrast MRV of the head along with MRI of the head is an essential component of the workup of CVT in most cases.