T2-weighted, PD-weighted, FLAIR, and DWI images showing cortical abnormalities in the right parietal lobe; FLAIR and DWI also show abnormalities in the.

Slides:

Advertisements

Similar presentations

Images of a 51-year-old woman (patient 8) with generalized tonicoclonic status epilepticus. Images of a 51-year-old woman (patient 8) with generalized.

Advertisements

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

Precontrast coronal T1-weighted view shows metastatic nodules (long arrows) from breast cancer in the vicinity of the left BPL and another metastatic mass.

Anti-N-methyl D-aspartate receptor encephalitis.

Slice no. 5. Slice no. 5. T2-weighted coronal image (20/9.2/12) at the level of the temporal horns (33 weeks' gestation). Large arrow, cingulate sulcus;

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.

FLAIR scan, FA map, and fiber tracking in a 38-year-old patient with TBI who was imaged 2 weeks after the initial trauma. FLAIR scan, FA map, and fiber.

Continued. Continued. E, Light microscopic image of the left hippocampus obtained by amygdalohippocampectomy reveals extensive neuronal loss and gliosis.

A 7-month-old boy with left hemimegalencephaly

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)

63-year-old patient with right hemiparesis.

Axial view MR images of the head, obtained at the time of second presentation.A, T1-weighted MR image (400/15) shows thickening of the dura overlying the.

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 53-year-old male patient with temporal lobe epilepsy (case 31).

A 50-year-old woman with fever and severe hypertension.

Patient 1. Patient 1. A 24-year-old woman with complicated (cardiac failure, pulmonary edema, chest infection, sternal wound sepsis, and venous thrombosis)

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.

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

Anti-glutamic acid decarboxylase encephalitis.

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.

False-negative fast FLAIR for demyelinating disease.

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.

Patient 4. Patient 4. A 42-year-old woman was admitted with sepsis related to her central dialysis line, with a background of liver transplant, chronic.

Coronal (A) and axial (B) contrast-enhanced T1-weighted MR images and an axial DWI (C) and ADC map (D) in a patient with primary dural B-cell lymphoma.

A, FLAIR demonstrating acute infarct within a superficial distribution

A–C, DWI scan (A) shows acute infarction involving the left cerebellar hemisphere, which appears iso- to hyperintense on the b0 EPI scan (B). A–C, DWI.

Case 4: 74-year-old man with sudden left paresthesia.

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),

Signal characteristics of PML

A, On day 9 of illness, MRA of the circle of Willis demonstrates normal caliber of the ICAs, MCAs, ACAs, and vertebrobasilar system. A, On day 9 of illness,

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, Diffusion-weighted image (TR, 10 seconds; TE, 94

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

Anti-voltage-gated calcium channel encephalitis.

Patient 1. Patient 1. Axial fluid-attenuated inversion recovery (FLAIR) imaging (A), diffusion-weighted imaging (DWI) (B), and apparent diffusion coefficient.

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

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.

A 5-year-old boy with parietal anaplastic ependymoma.

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.

Multiple microbleeds in CAA

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.

Coronal T2 (A) and axial T1 FLAIR (B), T2 (C), and SWI (D) MR images of a 6-day-old boy. Coronal T2 (A) and axial T1 FLAIR (B), T2 (C), and SWI (D) MR.

A–C, FLAIR (TR/TE, 9002/149. 5), DWI (10000/105

Conventional MR imaging findings in patients with ALS

A 43-year-old male patient with headaches (case 33).

MR images of the patient’s head, obtained on hospital day 17, 3 days after renormalization of overcorrected hypernatremia.A, FLAIR image now demonstrates.

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.

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.

The “white gray sign.” Axial high-resolution 3D inversion recovery fast-spoiled gradient-echo T1-weighted image demonstrates decreased gray-white contrast.

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

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.

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.

Case 6: 61-year-old man with sudden right crural hemiparesis.

Imaging plane for arterial spin labeling method.

T2 shinethrough artifact in DWI

Brain MR imaging 2 hours after onset of symptoms

Z-score brain surface map of representative cases shows a prominent metabolic reduction on respective gyrus level segment in cingulate gyrus.Top, 46-year-old.

A, Axial T2-weighted image reveals thickening of the cortical gray matter at the medial aspect of both frontal lobes, compatible with bifrontal cortical.

Case 1, 62-year-old female with 2-year history of firm, painless left parotid mass. Case 1, 62-year-old female with 2-year history of firm, painless left.

Persistent diffusion abnormalities in the brain stem of patient 2.

MR images show capsular and cortical lesions (panels 6 and 7); schematic distributions of the lesions are presented. MR images show capsular and cortical.

Visible atrophic changes after moderate TBI

Isolated restricted diffusion in a patient who recovered without residual symptoms.A, DW image shows asymmetric (right greater than left) high signal intensity.

Highly specific connections between the cortical lobe and thalamus.

Marked progression of PML documented by serial MR studies

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:

T2-weighted, PD-weighted, FLAIR, and DWI images showing cortical abnormalities in the right parietal lobe; FLAIR and DWI also show abnormalities in the left hemisphere and the dorsal part of the cingulate gyrus. T2-weighted, PD-weighted, FLAIR, and DWI images showing cortical abnormalities in the right parietal lobe; FLAIR and DWI also show abnormalities in the left hemisphere and the dorsal part of the cingulate gyrus. K. Kallenberg et al. AJNR Am J Neuroradiol 2006;27:1459-1462 ©2006 by American Society of Neuroradiology