Podcast
Questions and Answers
What is the contraindication for IV TPA thrombolysis?
What is the contraindication for IV TPA thrombolysis?
- Infarct of >1/3 of MCA territory (correct)
- Pre-stroke disability score mRS > 3
- Age > 80 years old
- NIHSS < 5
What is the primary purpose of using NCCT in acute stroke?
What is the primary purpose of using NCCT in acute stroke?
- To confirm the diagnosis of stroke
- To identify the site of occlusion
- To assess the infarct volume
- To exclude hemorrhage and alternative causes (correct)
What is the name of the scoring system used to assess the infarct volume on CT scan?
What is the name of the scoring system used to assess the infarct volume on CT scan?
- NIHSS
- Alberta Stroke Program Early MRI Score
- ASPECTS (correct)
- mRS
What is the earliest sign of stroke on CT scan?
What is the earliest sign of stroke on CT scan?
What is the time window for mechanical thrombectomy in the UK guidelines?
What is the time window for mechanical thrombectomy in the UK guidelines?
What is the normal ASPECTS score in a healthy brain?
What is the normal ASPECTS score in a healthy brain?
What type of edema is associated with stroke, in addition to vasogenic edema?
What type of edema is associated with stroke, in addition to vasogenic edema?
What is the main advantage of MRI over CT scans in diagnosing brain infarction?
What is the main advantage of MRI over CT scans in diagnosing brain infarction?
What is the primary utility of CTA/perfusion in stroke imaging?
What is the primary utility of CTA/perfusion in stroke imaging?
What sequence is used to demonstrate multiple foci of high signal consistent with ischemic lesions?
What sequence is used to demonstrate multiple foci of high signal consistent with ischemic lesions?
What is the term for the phenomenon where thrombus is not visible due to dispersion?
What is the term for the phenomenon where thrombus is not visible due to dispersion?
What is the name of the sign that is often seen in M2 branch of the middle cerebral artery?
What is the name of the sign that is often seen in M2 branch of the middle cerebral artery?
What is the term for the phenomenon where the margins of the lentiform nucleus and insular cortex become indistinct in early MCA stroke?
What is the term for the phenomenon where the margins of the lentiform nucleus and insular cortex become indistinct in early MCA stroke?
What is the name of the MRI sequence that is particularly sensitive to the presence of deoxyhemoglobin in acute thrombus?
What is the name of the MRI sequence that is particularly sensitive to the presence of deoxyhemoglobin in acute thrombus?
What is the time period during which CT has a low sensitivity for acute stroke?
What is the time period during which CT has a low sensitivity for acute stroke?
In what percentage of cases is a causative sinus thrombosis likely to be missed on CT scan?
In what percentage of cases is a causative sinus thrombosis likely to be missed on CT scan?
What is the characteristic MRI signal of acute blood products in a patient with cerebral venous thrombosis?
What is the characteristic MRI signal of acute blood products in a patient with cerebral venous thrombosis?
What is the primary advantage of MRI over CT scan in the diagnosis of cerebral venous thrombosis?
What is the primary advantage of MRI over CT scan in the diagnosis of cerebral venous thrombosis?
What is the characteristic CT scan feature of a thrombosed vessel in a patient with cerebral venous thrombosis?
What is the characteristic CT scan feature of a thrombosed vessel in a patient with cerebral venous thrombosis?
What is the primary complication of untreated cerebral venous thrombosis?
What is the primary complication of untreated cerebral venous thrombosis?
Which of the following is a characteristic of watershed infarcts on imaging?
Which of the following is a characteristic of watershed infarcts on imaging?
What is the primary site of infarction in small vessel strokes due to hypertension and diabetes?
What is the primary site of infarction in small vessel strokes due to hypertension and diabetes?
What is the mechanism of borderzone infarction?
What is the mechanism of borderzone infarction?
What is the characteristic distribution of ischemia in borderzone infarction?
What is the characteristic distribution of ischemia in borderzone infarction?
What is the typical pattern of ischemia in profound ischemia / deep ischemia?
What is the typical pattern of ischemia in profound ischemia / deep ischemia?
Which of the following MRI sequences is particularly sensitive to the presence of methemoglobin in subacute thrombus?
Which of the following MRI sequences is particularly sensitive to the presence of methemoglobin in subacute thrombus?
What is the characteristic MRI finding in subacute thrombus?
What is the characteristic MRI finding in subacute thrombus?
What is the most common parenchymal complication of superior sagittal sinus thrombosis?
What is the most common parenchymal complication of superior sagittal sinus thrombosis?
What is the characteristic feature of cerebral venous infarcts on MRI DWI?
What is the characteristic feature of cerebral venous infarcts on MRI DWI?
What is the typical location of parenchymal lesions in internal cerebral vein thrombosis or straight sinus thrombosis?
What is the typical location of parenchymal lesions in internal cerebral vein thrombosis or straight sinus thrombosis?
What is the characteristic feature of vein of Labbé thrombosis or transverse venous sinus thrombosis on MRI?
What is the characteristic feature of vein of Labbé thrombosis or transverse venous sinus thrombosis on MRI?
What is the typical location of parenchymal lesions in vein of Galen thrombosis?
What is the typical location of parenchymal lesions in vein of Galen thrombosis?
What is the characteristic feature of subacute thrombus on MRI SWI/on gradient echo?
What is the characteristic feature of subacute thrombus on MRI SWI/on gradient echo?
What is the percentage of children with SVT who will have venous infarct?
What is the percentage of children with SVT who will have venous infarct?
What is the characteristic CT finding in early parenchymal complications of SVT?
What is the characteristic CT finding in early parenchymal complications of SVT?
What is the primary indication for using CT scans in the evaluation of epidural hematoma?
What is the primary indication for using CT scans in the evaluation of epidural hematoma?
What is the characteristic signal intensity of an acute epidural hematoma on T1-weighted MRI sequences?
What is the characteristic signal intensity of an acute epidural hematoma on T1-weighted MRI sequences?
What is the typical appearance of an epidural mass on T2-weighted MRI sequences?
What is the typical appearance of an epidural mass on T2-weighted MRI sequences?
What is the characteristic feature of CSF leakage syndrome?
What is the characteristic feature of CSF leakage syndrome?
What is the typical enhancement pattern of an epidural hematoma following gadolinium administration?
What is the typical enhancement pattern of an epidural hematoma following gadolinium administration?
