Pretreatment MR and angiographic images

Slides:

Advertisements

Similar presentations

Ruptured PICA aneurysm in a 62-year-old man presenting in poor clinical condition. Ruptured PICA aneurysm in a 62-year-old man presenting in poor clinical.

Advertisements

A 49-year-old man presenting with left abducens and right facial nerve palsies. A 49-year-old man presenting with left abducens and right facial nerve.

Demonstration of the creation of a patient-specific brain mold for minimizing tissue distortion during fixation. Demonstration of the creation of a patient-specific.

A 55-year-old woman with brain stem compression from a partially thrombosed PICA aneurysm. A 55-year-old woman with brain stem compression from a partially.

123I/Tc-99m sestamibi subtraction scan (top left); neck sonogram in region of cystic mass (top right); axial arterial phase CT scan (bottom left); and.

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

Two angiographically occult additional microaneurysms adjacent to a ruptured posterior inferior cerebellar artery aneurysm in a 53-year-old woman. Two.

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,

Transforaminal transcranial color-coded duplex sonograms before (left) and after (right) application of an echo-enhancing agent. Transforaminal transcranial.

VW-MR imaging to differentiate among causes of intracranial arterial stenosis when angiography findings are inconclusive. VW-MR imaging to differentiate.

Acutely ruptured PICA aneurysm in a 46-year-old woman.

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

Common VW-MR imaging pitfalls.

VW-MR imaging to diagnose intracranial arterial dissection with minimal luminal narrowing. VW-MR imaging to diagnose intracranial arterial dissection with.

A, Axial source image from a contrast-enhanced MRA unambiguously demonstrates a tiny (

MR images demonstrating a large left middle cranial fossa mass.

A 44-year-old woman with coiled ruptured basilar tip aneurysm with repeated reopening and progressive growth during 6 years’ time. A 44-year-old woman.

Singular-energy magnitude and location at peak systole in aneurysm volumes (gray) of aneurysm 1, 2, 3, and 5 for 3D PC-MR imaging; CFD with inflow boundary.

A 68-year-old woman presenting 18 days after SAH from PICA aneurysm.

Evolution of imaging for internal auditory canal CPA cistern masses.

Sidewall aneurysm of the left vertebral artery (A).

Case 2, Right infundibular dilation at the junction of the internal carotid artery–posterior communicating artery (fetal-type), in a 36-year-old woman.A,

P1 segment aneurysm associated with a distal cortical AVM

Intracranial hypertension in a 30-year-old woman presenting with headaches and tinnitus. Intracranial hypertension in a 30-year-old woman presenting with.

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

Endovascular treatment was performed approximately 8 months after the patient’s initial diagnosis. Endovascular treatment was performed approximately 8.

A and B, Venous phase of a conventional intra-arterial catheter angiogram clearly shows flow within the nondominant transverse sinus (A, arrow), whereas.

A 64-year-old man with oculomotor nerve palsy from a partially thrombosed giant cavernous sinus aneurysm. A 64-year-old man with oculomotor nerve palsy.

3D TOF MR angiograms.A, Angiogram of the circle of Willis with the complete anterior configuration shows the AcoA (arrow).B, Angiogram of the circle of.

A 29-year-old man with sudden neck pain followed by right-sided muscle weakness and difficulty in swallowing. A 29-year-old man with sudden neck pain followed.

Axial T2-weighted MR imaging at the level of the internal auditory canals, demonstrating a large, homogeneous mass filling the right internal auditory.

Four more examples of missed additional aneurysms on DSA

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.

Results of aneurysm treatment with flow modification only.

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.

A–C, Sagittal T1-weighted (A), sagittal T2-weighted (B), and axial T2-weighted (C) MR images of the cervical spine in a patient with severe myelopathy.

T2-weighted MR imaging appearance of a healthy 60-year-old woman (A), a 66-year-old woman with idiopathic Parkinson disease (B), and a 16-year-old female.

Coronal postcontrast T1-weighted image of the orbits in patient 1 demonstrates a heterogeneously enhancing ovoid lesion involving the right medial rectus.

3D angiogram shows a vertebrobasilar junction aneurysm on the bridging artery of a basilar fenestration. 3D angiogram shows a vertebrobasilar junction.

30-year-old man with subarachnoid hemorrhage at presentation in 1994.

56-year-old woman evaluated with CT angiography for aneurysm of the supraclinoid segment of the internal carotid artery.A, Three-dimensional volume-rendered.

Patient with a 6-mm aneurysm of the AcomA that was treated with GDCs

A, Sagittal T1-weighted image demonstrates a mildly hypointense well-defined mass arising from the posterior aspect of the tongue abutting the inferior.

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

Left carotid artery angiograms demonstrate the persistent otic artery (a), the basilar artery (b), the fetal posterior cerebral artery (PCA) (c), the ACoA.

A and B, Anteroposterior (A) and lateral (B) anatomic diagrams demonstrate the anatomy of the PMVs in relation to the vertebrobasilar system. 1 indicates.

Giant cavernous carotid aneurysm, with the patient presenting with third and sixth nerve palsy due to mass effect (patient 16, On-line Table and Tables.

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.

Intramural dissection of a partially occluded giant basilar tip aneurysm in a 69-year-old woman causing fatal brain stem compression.A, Frontal vertebral.

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

Axial T2-weighted image (A) demonstrates focal cortical dysplasia (arrow) centered in the left anterior temporal lobe in a right-handed patient. Axial.

Sagittal MPRAGE (A) and axial T2-weighted (B) images demonstrate extensive focal cortical dysplasia (arrow) involving most of the visualized left frontal.

Conventional angiogram obtained from a right internal carotid artery injection (A) precoiling AP view and (B) unsubtracted postcoiling lateral view demonstrates.

A, T1-weighted axial MR image shows a large metastasis (asterisk) involving the C2 vertebral body and extending into the surrounding soft tissues. A, T1-weighted.

Giant infrasupraclinoid aneurysm of the right ICA

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

Representative quantitative maps of a patient with brain metastasis.

Axial T2-weighted MR image shows normal flow void in the right internal jugular vein (arrows), whereas flow-related enhancement can be seen in the left.

A, Postcontrast T1-weighted MR image of the brain during metastatic work-up demonstrates no metastatic disease. A, Postcontrast T1-weighted MR image of.

A 70-year-old woman with postoperative tuberothalamic infarction.

A, MIP image of MRA with injection from the left arm shows reflux of contrast in both jugular veins and the epidural venous plexus with poor opacification.

A, T2-weighted coronal image shows a soft-tissue mass of intermediate signal intensity in the left posterior nasal cavity.B, Postcontrast T1-weighted axial.

A 48-year-old woman presenting with a subarachnoid hemorrhage.

Flow patterns of 2 vertebral artery fusiform cases with different stent-placement strategies. Flow patterns of 2 vertebral artery fusiform cases with different.

FIG 4. Plots of the Loes scores, based on double-echo spin-echo MR images, obtained at different follow-up examinations for 22 patients with ALD. The T1-weighted.

Case 3.A, CT angiography revealing bilateral asymptomatic middle cerebral artery (MCA) bifurcation aneurysms and an additional aneurysm at the left distal.

Serial MR images in a patient receiving hydroxyurea.

Tilted head position for intracranial CT angiography in a patient who has undergone clipping of a single aneurysm. Tilted head position for intracranial.

DSA of the left vertebral injection, lateral (A) and anteroposterior (B) views, and a coronal CTA image (C) from case 23 demonstrate a large unpaired thalamic.

Illustration of the point-counting technique applied to estimate hippocampal volume from MR images of a control (C, top row), patient with left-sided seizure.

Presentation transcript:

Pretreatment MR and angiographic images Pretreatment MR and angiographic images.A, Left vertebral artery angiogram in the antroposterior view, arterial phase, on the patient’s first clinical presentation 2 years ago shows the vertebrobasilar aneurysm and poor visualization of the basilar artery.B... Pretreatment MR and angiographic images.A, Left vertebral artery angiogram in the antroposterior view, arterial phase, on the patient’s first clinical presentation 2 years ago shows the vertebrobasilar aneurysm and poor visualization of the basilar artery.B, Recent follow-up of the left vertebral artery angiogram in the antroposterior view, arterial phase, shows progressive aneurysmal growth.C, T1-weighted MR image with gadolinium injection demonstrates the aneurysmal mass effect in the posterior cranial fossa.D, 3D digital subtraction angiogram with volume rendering through left vertebral injection shows giant aneurysm involving both vertebral arteries and basilar artery, with maximum dilatation over the right vertebral artery exit to basilar artery. Tamer Hassan et al. AJNR Am J Neuroradiol 2004;25:63-68 ©2004 by American Society of Neuroradiology