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

Slides:

Advertisements

Similar presentations

High-signal-intensity lesions on T2-weighted MR images

Advertisements

Axial T1-weighted image after contrast administration (A) and a FLAIR image (B) demonstrating a left parietal subcortical DVA with deep venous drainage.

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 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.

MR images in different patients with SIFs

A–C, Case 1. A–C, Case 1. Typical white matter changes involving the corpus callosum and the pyramidal tracts (A and C, arrows), dilation of the lateral.

Photograph, CT, and MR imaging of the patient.

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–C, Case 5. A–C, Case 5. Axial CT images at 1 month after birth show bilateral frontal and parietal calcifications (arrows). D–F, These calcifications.

Patient 14. Patient 14. Secondary progressive MS. Axial contrast-enhanced T1-weighted MR image (600/27/1 [TR/TE/excitation]). A, No enhanced lesion can.

Serial imaging of a child with a clinical complex of bilateral facial PWS, early-onset severe seizures, and fatally progressive encephalopathy. Serial.

Comparison of conventional (A) and KRISP (B) FLAIR images (8142/135/1; TI = 2250) at the level of the pons. Comparison of conventional (A) and KRISP (B)

Patient 1, a 15-day-old neonate who presented with encephalopathy

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.

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

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.

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.

Coronal FLAIR images (A–C) document decreasing left hippocampal mass effect and signal intensity over 5-year period (black arrowhead). Coronal FLAIR images.

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

A, Transverse T2-weighted fast FLAIR images obtained in a patient with liver cirrhosis during an episode of hepatic encephalopathy. A, Transverse T2-weighted.

Images of a 2-year-old female patient (patient 6) with complex partial status epilepticus with secondary generalization. Images of a 2-year-old female.

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.

Axial MR image (10,002/142) obtained when the patient was aged 12 days demonstrates ventricular size and sulcal prominence have increased since the study.

A–I, Matching T1-weighted, T2-weighted, and FLAIR images from three patients ages 5 weeks (A–C), 8 months (D–F), and 3 years (G–I). A–I, Matching T1-weighted,

Supratentorial and posterior fossa PML

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

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.

A, Baseline MR imaging study (transverse fast FLAIR T2-weighted image) of a 56-year-old patient with hepatitis C cirrhosis without overt hepatic encephalopathy.

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

F, Patient 1 shows no evident atrophy of the cerebral cortex and white matter. F, Patient 1 shows no evident atrophy of the cerebral cortex and white matter.

A-I, Axial T2-weighted brain MR images from patients with SS show hemosiderin deposition along the cerebellar folia (A), vermis (B) and around the midbrain.

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.

Patient 2: group BG lesion pattern.

Contrast-enhancing lesions on CT scans (A–D) in 4 patients with AIDS-related PCNSL. Note irregularly enhancing lesions in the right parietal lobe (A),

Case 2.A, Axial T2- and, B, T1-weighted MR images obtained 3 years after involved field radiation therapy at 3 years of age for a posterior fossa ependymoma.

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.

Case 2, a 65-year-old man, known to be a chronic alcoholic and to have hepatic cirrhosis, who presented with an acute onset of altered mental status, seizures,

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

1, Axial T2 image in patient 1 demonstrates bilateral cystic spaces in the biparietal periventricular white matter. 2, Axial T2 image in patient 2 demonstrating.

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

Axial T2 (A) and axial T2 FLAIR (B) images show periventricular white matter hyperintensities (arrows), prominent Virchow-Robin spaces (arrowheads), ventriculomegaly,

Orbital lymphoma (A–C) compared with OIS (D–F).

Sagittal midline T1-weighted (A) and coronal fluid-attenuated (B) inversion recovery (C) images demonstrate evidence of progressive cerebellar atrophy.

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.

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

T1-weighted image obtained 2 months after exposure to carbon monoxide (A) shows slightly high-signal-intensity lesions in the bilateral substantia nigra.

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

Longitudinal T1-weighted spin-echo signal-intensity changes in the DN (A–C) and GP (D–F) in a female patient with MS after receiving 0 (A and D), 1 (B.

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

On follow-up MR examination, 25 days after onset of symptoms, T2-weighted (A) and fluid-attenuated inversion recovery (B) MR images of brain show neuronal.

A 64-year-old man with an intra-abdominal abscess (patient 3).

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

Case 1: Axial DWI through the maxillary sinus level demonstrates high signal intensity within the affected left maxillary sinus (black asterisk) compared.

Typical imaging presentation on FLAIR

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

Brain MR imaging on DOL 2 in patient 5 while he was treated with induced hypothermia; comparison between the perfusion map and images obtained from conventional.

Brain MR imaging 2 hours after onset of symptoms

Conventional MR image findings in acute-stage ANE in 2-year-old-girl.

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.

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.

Serial MR images in a patient receiving hydroxyurea.

Visible atrophic changes after moderate TBI

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.

Chronic CNS-IRIS without coinfection.

Marked progression of PML documented by serial MR studies

KD involving bilateral buccal spaces in a 52-year-old man.

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:

MR images of patient 2 (with juvenile-onset DRPLA). MR images of patient 2 (with juvenile-onset DRPLA). A–C, The T2-weighted axial images obtained at 35 years of age show marked atrophy of the pons, cerebellum, and cerebral hemispheres. High-signal-intensity lesions are observed only in the periventricular white matter at this point in time (C). D–F, On T2-weighted MR images obtained at 39 years of age, marked progression of atrophic changes is demonstrated in the cerebellum, brain stem, and cerebral hemispheres. Additionally, high-signal-intensity lesions in the cerebral white matter are clearly observed (F). Y. Sunami et al. AJNR Am J Neuroradiol 2011;32:109-114 ©2011 by American Society of Neuroradiology