A–C, Single-voxel proton spectra from a normal-appearing cerebellar volume (A, patient 12), a normal-appearing parieto-occipital white matter volume (B,

Slides:

Advertisements

Similar presentations

Representative anatomic T2W images (A and D) and MTR (B and E) and ihMTR (C and F) maps obtained on a control subject and a patient with RRMS after step.

Advertisements

Images of a 60-year-old man (patient 5) with complex partial status epilepticus with secondary generalization as the initial presentation of seizure. Images.

Top row, Images from a coronally oriented cine CT scan of the rabbit brain from the level of the pons (section 1) to the parieto-occipital cerebrum (section.

Case 2. Case 2. A and B, T2-weighted images (fast spin-echo sequence with parameters of 4500/96 [TR/TE]) show diffuse hyperintense lesions in the white.

Longitudinal MWF in different brain regions for the vaginal delivery (blue) and cesarean delivery (green) groups in cohort 3. Longitudinal MWF in different.

Patient 8, possible Joubert malformation.

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.

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.

False-positive spectra in an immature (36-week gestation) neonate at 2-day postnatal age. False-positive spectra in an immature (36-week gestation) neonate.

Line graph showing change in size over time relative to baseline CT

Receiver operating characteristic curves with statistical significance are shown. Receiver operating characteristic curves with statistical significance.

1H-MR-spectroscopy water-suppressed proton spectra of an 8-mL voxel located in the parietal region including predominantly normal-appearing white matter.

48-year-old man with a 2-month history of recurrent episodes of unsteady gait, visual loss, tinnitus, left arm paresthesia, and frontal headache. 48-year-old.

Workflow of the 2 presented analysis approaches: the reference Weisskoff method and the alternative tissue residue function–based method. Workflow of the.

Top: Side-by-side axial T1 MR image from two 29-year-old-female patients with MS, both with a disease duration of 6 years and a very mild disability score.

The relationship between clinical disability and quantitative susceptibility values in the putamen and thalamus across PPMS and RRMS groups. The relationship.

A–C, Selected axial CT scans demonstrate dystrophic calcification of the subcortical arcuate fibers, globus pallidus, pulvinar, and cerebellar corticomedullary.

Pictorial depiction of the phase-masking process.

MR images of Taylor’s FCD with balloon cells

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.

Bar graph of the number of averaged activated voxels (normalized to control values), as defined by increases in lactate concentration in the left frontal.

AP (A) and lateral (B) radiographs demonstrating a discontinuous segment of the catheter, with broken catheter ends in the subcutaneous tissue of the lower.

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.

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.

SWI data in a patient with progressive MS exquisitely demonstrate the location of iron deposition in the deep gray matter. SWI data in a patient with progressive.

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

Single voxel spectroscopy.

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.

Bar graph of ADC values (s/mm2) for tumor, contralateral normal tissue, ipsilateral normal tissue, and edema for the group of 15 patients with high-grade.

Case 21: 7-year-old girl with bilateral perisylvian, lateral parietal, and parieto-occipital polymicrogyria. Case 21: 7-year-old girl with bilateral perisylvian,

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),

Basilar artery diameter measured with CTA in the delayed stage of SAH

MR spectrum of a normal frontal lobe obtained at 1

Images from the case of a 31-year-old man with MELAS syndrome, which was documented by a point mutation in the mitochondrial tRNA (Leu). Images from the.

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.

Diagnostic performance of different VBM models.

Differentiation of common pediatric brain tumors by quantitative 1H-MR spectroscopy. Differentiation of common pediatric brain tumors by quantitative 1H-MR.

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.

Ultrasonography (A–C) and MR imaging (D and E) (time interval, 7 days) from an infant with NKHG.A–C, Sagittal views showing (A) a hypoplastic corpus callosum.

Dynamic contrast-enhancement curves for patients with SLE (blue) and healthy controls (red) according to the brain regions sampled. Dynamic contrast-enhancement.

Multiple microbleeds in CAA

Sequential diffusion-weighted images show bright basal ganglia as the initial finding after anoxia. Sequential diffusion-weighted images show bright basal.

Sagittal reconstruction of a CT scan of a 6-year-old boy (patient 3) after a fall (GCS = 15) demonstrates an REH (thick white arrow), which causes mild.

Comparison of sagittal images.

Images from the case of an 8-year-old female patient with complex I mitochondrial disease, which was diagnosed when the patient was older than 3 years.

Images of a 22-month-old male patient with severe left temporal lobe epilepsy that was recognized at age 9 months after bacterial meningitis at age 6 months.A.

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

Case 2. Case 2. Selected proton MR spectra (PRESS, 1500/136/1; nominal voxel size, 2 cm3) from the voxels indicated on the scout spin-echo T2-weighted.

69-year-old woman with left hemispheric TIAs and left orbital bruit.

Comparison of brain temperature values in the basal ganglia and white matter according to the initial degree of encephalopathy and the presence of brain.

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

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

Representative quantitative maps of a patient with brain metastasis.

Intergroup comparisons of fractional anisotropy values using TBSS

Bar graph illustrating the rate of leak detection by CTM and MRM

Number of white streaks for the cobalt-containing alloy (upper, black lines) and titanium clips (lower, white lines) scanned in high mode (H) (open symbols,

Low-grade astrocytoma and anaplastic astrocytoma.

Globally increased ASL signal intensity due to artifact.

Graph showing significant correlation of MFC in the thalamus and number of lesions in patients with relapsing-remitting MS. This trend indicates the role.

Plot of the regional homogeneity index among the CID-NI, CID-MCI, and NC groups in the identified brain regions (voxels at least 60, P < .001). a, The.

Clustered box-and-whisker graphs show the differences in the mean values of hemodynamic parameters according to the presence of BMVs in each vascular territory.

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

1H-MR spectroscopy of medulloblastoma

Highly specific connections between the cortical lobe and thalamus.

50-year-old woman with history of left parieto-temporo-occipital glioblastoma multiforme and new abnormal enhancement on follow-up imaging after surgery.

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:

A–C, Single-voxel proton spectra from a normal-appearing cerebellar volume (A, patient 12), a normal-appearing parieto-occipital white matter volume (B, patient 3), and a normal-appearing parieto-occipital cortex (C, patient 1). A–C, Single-voxel proton spectra from a normal-appearing cerebellar volume (A, patient 12), a normal-appearing parieto-occipital white matter volume (B, patient 3), and a normal-appearing parieto-occipital cortex (C, patient 1). Spectra reveal a significant decrease of choline (Cho) and the presence of a low amplitude signal at 0.9 ppm (Lip/aa) in each anatomic location. NAA is decreased in cerebellar (A) and parieto-occipital cortex (C) locations. Cr indicates creatine. M. Cristina Bianchi et al. AJNR Am J Neuroradiol 2003;24:1958-1966 ©2003 by American Society of Neuroradiology