Case 10: 61-year-old man with hyperacute ischemic stroke with arterial occlusion and increased CBV. A, T2-weighted image (3500/90) is normal except for.

Slides:

Advertisements

Similar presentations

A 21-year-old man with recurrent left S1 sciatica and radiculopathy by electromyography. A 21-year-old man with recurrent left S1 sciatica and radiculopathy.

Advertisements

Images in a 53-year-old man with episodes of right-sided numbness

Patient 1. Patient 1. A 40-year-old man with mild ataxia and homonymous hemianopia. CRP level was initially 0.5 mg/dL and did not change in the clinical.

Right carotid angiogram (A) demonstrates a small carotid cave aneurysm in a patient who had an anterior communicating artery aneurysm previously treated.

Axial CT scans of the brain and neck performed with contrast medium.

A, ROIs that were drawn in the flow territories of the anterior cerebral artery (cortex: ROIs 1 and 2, basal ganglia: ROIs 5 and 6) and the middle cerebral.

Images from the case of a 3-month-old triplet with worsening congestive heart failure.A, Volume-rendered MR angiogram shows, from an inferior prospective,

Patient 8. Patient 8. A 66-year-old man with late subacute intracerebral hematoma on MR images obtained 30 days after symptom onset.A, T1-weighted image.

Case 2: 69-year-old man with atrial fibrillation and sudden onset of left-sided hemiparesis. Case 2: 69-year-old man with atrial fibrillation and sudden.

A, Measurement of the angle between the TS-OP line and the hard palate in the lateral scout view of the brain CT (black arrow). A, Measurement of the angle.

A, Left internal carotid artery (ICA) angiogram showing a left middle cerebral artery (MCA) bifurcation aneurysm and an additional distal MCA aneurysm.B.

Technical implementation of VW-MR imaging.

Patient 2: CNS vasculitis in a 37-year-old woman with systemic lupus erythematosus. Patient 2: CNS vasculitis in a 37-year-old woman with systemic lupus.

Contrast-enhanced coronal CT scan of a rabbit.

Patient 3: Hemorrhage in CNS vasculitis.

Types I and II LTS. Axial contrast-enhanced T1-weighted MR image obtained in a 55-year-old man with a type I LTS on the left and a type II LTS on the right.

A 66-year-old man with a calcified cerebral embolus to the left middle cerebral artery.A, Axial 2.5-mm image from a noncontrast brain CT scan shows a calcified.

63-year-old patient with right hemiparesis.

Source dynamic MR image (A), signal intensity time curves (S) (B), and color-coded perfusion map (overlaid on the corresponding FLAIR image) (C) of a male.

Parent artery occlusion of a giant serpentine aneurysm of the PCA complicated by cerebral infarction in the distal arterial territory. Parent artery occlusion.

T2-weighted images of a patient with an infarction within the anterior MCA branch territory on day 5 (patient 15) show high SI changes within the ipsilateral.

Three perfusion sections.

A 76-year-old man presenting with acute right-sided symptoms.

Cardioembolic stroke in the left MCA, 2 hours after onset.

Case 8: 77-year-old woman with hyperacute ischemic stroke with arterial occlusion and decreased CBV. A, T2-weighted MR image (3500/90) is normal except.

Patient 6: 24-year-old woman with primary angiitis of the CNS

Axial MR image (TR/TE, 10,002/142) obtained when the patient was aged 5 days shows extensive areas of abnormal signal intensity, which suggest edema involving.

MR images of patient 2 (with juvenile-onset DRPLA).

Images in a 49-year-old women with leptomeningeal carcinomatosis from adenocarcinoma of the lung. Images in a 49-year-old women with leptomeningeal carcinomatosis.

An example of the predicted risk of final infarct for 2 patients with acute ischemic stroke using 2 neural networks trained, respectively, on patients.

Case 2.A, Right internal carotid artery (ICA) angiogram, oblique view, showing a 4-mm aneurysm at the right middle cerebral artery (MCA) bifurcation.B,

CTP. CTP. Chronic left internal carotid artery occlusion. A, Baseline. B, After ACZ administration. There is significant hypoperfusion in the left hemisphere.

73-year-old man with left hemiparesis.

Images obtained in an 83-year-old man with cerebral hyperperfusion after carotid stent placement. Images obtained in an 83-year-old man with cerebral hyperperfusion.

An example of the predicted risk of final infarct for 2 patients with acute ischemic stroke using 2 neural networks trained, respectively, on patients.

Case 6, a 73-year-old woman with SAH

A 49-year-old man with abducens nerve palsy from a partially thrombosed PICA aneurysm projecting into the brain stem. A 49-year-old man with abducens nerve.

Representative multislice MIP projections of EPVS in the subcortical brain structures and the basal ganglia of a control and a subject with aMCI. Representative.

Anteroposterior (A and C) and lateral (B and C) images from a left internal carotid artery angiogram obtained during the early (A and B) and delayed angiographic.

Patient 4: 71 year-old woman with primary angiitis of the CNS

High-resolution MR imaging, CTA, and sonography of the left carotid artery of a 77-year-old man. High-resolution MR imaging, CTA, and sonography of the.

A 23-year-old woman woke up with a complete hemiplegia.

A 61-year-old male patient with right hemiparesis imaged at 2

Case 2: Agenesis of the left ICA

A 55-year-old woman presenting with left hemiparesis and normal findings on head CT. A, CTP source image shows poor contrast opacification within the right.

Coronal T1-weighted contrast-enhanced MR image obtained in January of 1999 at the onset of right hearing impairment shows increased enhancement of the.

52-year-old African-American man with seizure disorder.

63-year-old woman with right hemiparesis and aphasia.

Multiple microbleeds in CAA

A 34-year-old woman with SLE with APS

Multiple PCA associated with Moya-Moya disease, successfully treated with GDC. A, Frontal view of left internal carotid angiogram showing occlusion of.

Pretreatment DWI (A–C) and ADC maps (E–G) of a comatose 45-year-old man with areactive tetraplegia. Pretreatment DWI (A–C) and ADC maps (E–G) of a comatose.

Comparison between angle-corrected and uncorrected flow velocities and angiographic findings in a 54-year-old woman with MCA stenosis. Comparison between.

Case 7: 45-year-old man with sudden onset of vertigo, dysmetria, and somnolence. Case 7: 45-year-old man with sudden onset of vertigo, dysmetria, and somnolence.

A 10-year-old boy with symptoms of brain stem compression from a giant partially thrombosed distal vertebral aneurysm. A 10-year-old boy with symptoms.

A 42-year-old man presenting with progressive deterioration of consciousness. A 42-year-old man presenting with progressive deterioration of consciousness.

A–D, Multiple tiny cortico-subcortical lesions in the right motor region on DWI (approximately 1500/115/18; 2 RR intervals) study (A) confirm the ischemic.

Case 1: 54-year-old man with atrial fibrillation and sudden onset of left-sided hemiparesis. Case 1: 54-year-old man with atrial fibrillation and sudden.

A 71-year-old woman who underwent imaging 7 hours after onset of right hemiparesis and aphasia. A 71-year-old woman who underwent imaging 7 hours after.

A 42-year-old man experienced low-back pain and fever for 5 days.

Case 25. Case 25. This patient presented with a decreased level of consciousness and was treated with intra-arterial nimodipine for symptomatic cerebral.

Patient 3 was an 8-week-old female infant with a history of seizures that started 3 days before MR imaging was performed. Patient 3 was an 8-week-old female.

Hyperacute infarction (2 hours after onset) in a 39-year-old man with the left internal carotid artery dissection presenting with right-sided weakness.

Brain MR imaging 2 hours after onset of symptoms

Comprehensive imaging of a patient with recent stroke depicting left MCA stenosis. Comprehensive imaging of a patient with recent stroke depicting left.

Scatterplot of the log of infarct signal intensity on DW images versus the log of hours from symptom onset. Scatterplot of the log of infarct signal intensity.

Twelve-year-old girl with coinfection of JE and NCC (patient 5).

Images in a 50-year-old man with empyema and chronic meningitis.

Procedural and follow-up angiograms of a 28-year-old female patient with a history of subarachnoid hemorrhage due to rupture of a contralateral MCA bifurcation.

A 21-year-old woman with a right sensory-motor deficit and aphasia for 60 minutes. A 21-year-old woman with a right sensory-motor deficit and aphasia for.

Presentation transcript:

Case 10: 61-year-old man with hyperacute ischemic stroke with arterial occlusion and increased CBV. A, T2-weighted image (3500/90) is normal except for small chronic lesion with hemosiderin rim in left basal ganglia.B, 3D time-of-flight MR angiogram reveals... Case 10: 61-year-old man with hyperacute ischemic stroke with arterial occlusion and increased CBV. A, T2-weighted image (3500/90) is normal except for small chronic lesion with hemosiderin rim in left basal ganglia.B, 3D time-of-flight MR angiogram reveals occlusion of left internal carotid artery through M1 segment of the left MCA.C, CBV map shows increased CBV throughout left MCA distribution.D, CBV map shows irregular ROIs placed for measurement of CBV ratio and time–signal intensity curves between the region of increased CBV and contralateral normal region. Calculated CBV ratio was 1.23.E, Time–signal intensity curves measured during passage of contrast material show delayed arrival time and delayed washout of the contrast material in left MCA distribution, suggesting collateral flow.F, 99mTc-HMPAO brain SPECT scan obtained during the hyperacute stage at approximately the same level as A and C reveals mild hypoperfusion throughout left MCA and anterior cerebral artery distribution.G, Follow-up T2-weighted MR image (3500/90) obtained 2 days after the onset of symptoms is normal except for small chronic lesion in left basal ganglia. Jae Hyoung Kim et al. AJNR Am J Neuroradiol 1999;20:613-620 ©1999 by American Society of Neuroradiology