Serial axial T2-weighted images (2000/110/2 at treatment, 3400/100/4 at 6 months and 4000/100/3 at 10 months and 36 months after treatment) in a 52-year-old.

Slides:

Advertisements

Similar presentations

Low SI on axial T2-weighted images as a sign of malignancy.

Advertisements

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.

A 50-year-old man with MD. Axial thin-section CT image shows decreased distance between the vertical limb of the posterior semicircular canal and the posterior.

Thin-section (2.5-mm) axial T1-weighted spoiled gradient-echo gadolinium-enhanced images of the brain obtained at 1.5 T for Gamma knife localization (trigeminal.

A and B, Sagittal (A) and axial (B) fast spin-echo images of the cervical spine before treatment demonstrate diffuse increase in signal intensity (arrows)

Axial MR images in a 51-year-old woman with parkinsonism.

Normal progression of interbody fusion in a 28-year-old woman.

Radiation neuropathy. Radiation neuropathy. A 69-year-old woman with a history of breast carcinoma and external beam radiation therapy 2 years before imaging.

Intraosseous temporal bone meningioma in a 45-year-old woman who presented with left-sided hearing loss and tinnitus. Intraosseous temporal bone meningioma.

Image shows appearance of septum within dural sinus in a 68-year-old woman with normal results of an MR imaging examination. Image shows appearance of.

A 42-old-woman with tingling and numbness in the ulnar side of the right hand. A 42-old-woman with tingling and numbness in the ulnar side of the right.

56-year-old woman with diffuse large B cell lymphoma

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.

66-year-old woman with well-differentiated squamous cell carcinoma of lower gingiva.A, Axial T1-weighted MR image of metastatic submandibular node (arrow)

Brain and spine MR imaging of a 48-year-old woman with Zika virus infection and encephalitis and myelitis. Brain and spine MR imaging of a 48-year-old.

A 7-month-old boy with left hemimegalencephaly

Coronal (A, B) and sagittal (D) sections of MIP reformations of a MDCTA performed on a 4-row-detector system in a 54-year old woman (patient 10) with an.

Type 1 pedicle marrow signal intensity changes associated with new and old pedicle fractures in a 64-year-old woman. Type 1 pedicle marrow signal intensity.

42-year-old male patient with follow-up neck CT for lymphoma at 70 kVp (A) and corresponding previous CT at 120 kVp (B). 42-year-old male patient with.

Persistent weakness of right lower limb 2 months after EV71 infection in a 16-month-old infant. Persistent weakness of right lower limb 2 months after.

A, 55-year-old woman who underwent superficial parotidectomy 22 years before recurrence. A, 55-year-old woman who underwent superficial parotidectomy 22.

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

Patient 9. Patient 9. A 31-year-old man with mental status changes and seizure activity.A, T2-weighted axial MR image shows bilateral frontal and right.

A 12-month-old girl with chronic infarction in bilateral middle cerebral artery territories. A 12-month-old girl with chronic infarction in bilateral middle.

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.

VBM results for differences in WM volume between patients with POAG and disease-free control subjects. VBM results for differences in WM volume between.

Type 1 pedicle marrow signal intensity changes and associated soft tissue hyperintensity on T2- and STIR-weighted sequences associated with pars fractures.

Same patient as shown in figure 3.

Normal apical ligament (arrow) and normal anterior atlantoaxial ligament (arrowhead) in the diagram (A) and the midsagittal T2-weighted MR image (B) in.

Patient 12. Patient 12. A 43-year-old woman with headache, blurred vision, and mental status change.A, T2-weighted axial MR image shows bilateral centrum.

Involvement of the frontal and parietal lobes in patients with isolated cortical hyperintensities. Involvement of the frontal and parietal lobes in patients.

Type 1 pedicle marrow signal intensity changes associated with degenerative facet disease. Type 1 pedicle marrow signal intensity changes associated with.

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.

Midline (A) and parasagittal (B) non-contrast-enhanced T1-weighted MR images (500/11/1) in a 73-year-old healthy woman show the normal high signal intensity.

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

Case 1, a 69-year-old woman. Case 1, a 69-year-old woman. MR images of the thoracolumbar spine, obtained 10 hours after sudden-onset severe back pain,

Ill-defined margins as a sign of malignancy.

Axial T2-weighted MR images

Images of a 37-year-old man who was a pedestrian in a traffic accident in January 1992; he was hit by an automobile while under the influence of alcohol.

Cystic changes within the endplates adjacent to the implants.

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

A 7-day old neonate, the older sister of patient 1, also presented with neonatal encephalopathy.Axial fast spin-echo T2-weighted image (130/4200/1[TE/TR/NEX])

Signal characteristics of PML

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.

A 50-year-old woman with nonenhancing WHO grade II diffuse astrocytoma

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.

Examples of tumor classifications are as follows: circumscribed, with sharp smooth borders (A); circumscribed, with sharp borders, but not smooth due to.

A 47-year-old woman with a history of alcohol abuse presented with ataxia, changes in consciousness, and ocular abnormalities. A 47-year-old woman with.

Axial images of a 45-year-old woman (A and C) from the STD group (DLP, 1100 mGy×cm) and a 37-year-old man (B and D) from the LD group (DLP, 713 mGy×cm)

Sagittal T1-weighted MR image of the pituitary gland in a term neonate (born at gestational week 38) obtained near term (corrected age of 39 weeks; 7 days.

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

Acquired cephaloceles, surgical.

MR images of the brain (axial sections, fluid-attenuated reversion recovery sequences) show the symmetric hyperintensities (arrows) involving the pyramidal.

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

A, Axial T2-weighted image (3500/90/2) shows a well-defined deep right occipital white matter lesion (asterisk) and a subcortical linear hyperintensity.

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.

MR images of a 52-year-old man obtained 1 year and 3 months after surgery.A, A 3-mm-thick FSE T2-weighted image obtained at the level of the middle cerebellar.

MR images in a 69-year-old woman with cervical and thoracic back pain.

A, Axial T1- weighted MR image shows a predominantly isointense lesion in the right parietal bone. A, Axial T1- weighted MR image shows a predominantly.

A 34-year-old woman with an unruptured, small, left medial frontal arteriovenous malformation, once treated with gamma knife (A). A 34-year-old woman with.

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.

Postcontrast T1-weighted axial images obtained from a 66-year-old woman with a history of non-small cell lung cancer showing a metastatic cystic lesion.

Persistent diffusion abnormalities in the brain stem of patient 2.

A–C, Axial T2-weighted images 7 days after the ictus, demonstrating punctate hyperintensities throughout the white matter, on a background of slightly.

A 19-year-old man with a nonenhancing WHO grade III anaplastic astrocytoma. A 19-year-old man with a nonenhancing WHO grade III anaplastic astrocytoma.

Case 2: 52 year-old man with intracranial injuries sustained in a motor vehicle accident. Case 2: 52 year-old man with intracranial injuries sustained.

Radiation plexopathy. Radiation plexopathy. A 67-year-old woman with a history of left breast carcinoma and radiation treatment 20 years ago who presented.

Examples illustrating the study definitions of groups A, B, and C

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:

Serial axial T2-weighted images (2000/110/2 at treatment, 3400/100/4 at 6 months and 4000/100/3 at 10 months and 36 months after treatment) in a 52-year-old woman. Serial axial T2-weighted images (2000/110/2 at treatment, 3400/100/4 at 6 months and 4000/100/3 at 10 months and 36 months after treatment) in a 52-year-old woman. Note the hyperintensity in the adjacent brain tissue at 6 months and remarkable improvement at 10 months. GKRS indicates gamma knife radiosurgery; mos., months after gamma knife radiosurgery Hiroyuki Nakamura et al. AJNR Am J Neuroradiol 2000;21:1540-1546 ©2000 by American Society of Neuroradiology