A, Baseline DWI, RMHV on GRE-T2

Slides:

Advertisements

Similar presentations

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

Advertisements

A 61-year-old man with brain metastases from primary lung cancer.

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.

Normalized and averaged images of rGMC and I-123 iomazenil BP

Contrast-enhanced coronal CT scan of a rabbit.

Diffusion-weighted (TR = 3900, TE = 94, B = 1000, number of gradient directions = 90) imaging (A) with corresponding apparent diffusion coefficient map.

A side-by-side comparison of EPVS in a cognitively healthy control versus a patient with aMCI A, A coronal MR brain image of a cognitively healthy control.

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–C, DWI san (A) at the level of the atria of the lateral ventricles reveals areas of acute (hyperintense) infarction in the frontoparietal region and.

Axial CT images at the level of the middle cerebellar peduncles show blood clot within the fourth ventricle. Axial CT images at the level of the middle.

63-year-old patient with right hemiparesis.

Axial CT images at the basal ganglia level show subarachnoid hemorrhage on the right and a chronic lacunar infarct on the left. Axial CT images at the.

CT perfusion maps of MTT

Representative case with region of interest on globus pallidus (arrow)

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.

Volume of GP infarcts. Volume of GP infarcts. The range of GP infarct volumes is 9–1021 μL. Laterality of the infarcts is apparent when infarcts are segregated.

Cardioembolic stroke in the left MCA, 2 hours after onset.

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

A 58-year-old woman with left-sided weakness.

An example of the predicted risk of final infarct for 2 patients with acute ischemic stroke using 2 neural networks trained, respectively, on patients.

Trends in the use of head CT and advanced imaging in patients treated with IV thrombolysis from 2008 to Trends in the use of head CT and advanced.

CTP. CTP. Chronic left internal carotid artery occlusion. A, Baseline. B, After ACZ administration. There is significant hypoperfusion in the left hemisphere.

A 51-year-old woman with glioblastoma multiforme.

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.

Progression of a GP infarct.

An example of the predicted risk of final infarct for 2 patients with acute ischemic stroke using 2 neural networks trained, respectively, on patients.

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])

T2-weighted (A), FLAIR (B), and isotropic DWI (C) of a unilateral lesion in a patient with an acute or chronic presentation of worsening right-sided weakness.

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

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

Graph of neurologic scores (mean ± SD) for the moderate-severe VSPdelayed group, mild VSPdelayed group, and sham group. Graph of neurologic scores (mean.

A 61-year-old male patient with right hemiparesis imaged at 2

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

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.

Multiple microbleeds in CAA

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

Axial CT images at the centrum semiovale level show a small left frontal hemorrhage corresponding to shear injury. Axial CT images at the centrum semiovale.

Axial head CT image across the centrum semiovale before (baseline image) and after (enhanced image) processing with CIE, with equivalent ROIs used to measure.

A, Craniocaudal collapsed MIP image of 3D TOF-MRA shows right MCA occlusion in case 2. A, Craniocaudal collapsed MIP image of 3D TOF-MRA shows right MCA.

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

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.

A–C, DWI scan (A) shows acute (hyperintense) infarction in the left frontal region. A–C, DWI scan (A) shows acute (hyperintense) infarction in the left.

Relationships between number and site of traumatic microbleeds and clinical and imaging parameters. Relationships between number and site of traumatic.

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.

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.

A 61-year-old man presenting with an acute right Wallenberg syndrome.

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, Axial T2-weighted image from a routine high-resolution 3T screening study to evaluate internal auditory canal lesions shows the right CNIII entering.

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

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

Receiver operating characteristic curves show the diagnostic performance of the incremental CT protocol in the detection of lacunar infarction, without.

Signal intensity time curves of gradient-echo (GRE) and spin-echo (SE) echo-planar imaging sequences. Signal intensity time curves of gradient-echo (GRE)

Brain MR imaging 2 hours after onset of symptoms

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.

Plots of the difference between sonography and MR imaging ventricular measurements against the time interval between sonography and MR imaging. Plots of.

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.

Persistent diffusion abnormalities in the brain stem of patient 2.

Axial DWIs at the level of the corona radiata obtained at 2 different time points (A and B) show recurrent periventricular infarcts. Axial DWIs at the.

Comprehensive imaging of a patient with recent stroke depicting left MCA stenosis. Comprehensive imaging of a patient with recent stroke depicting left.

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

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.

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, Baseline DWI, RMHV on GRE-T2 A, Baseline DWI, RMHV on GRE-T2*, TTP, MTT, rCBF, rCBV, and the infarct volume at 72 hours on follow-up images in group 1. A, Baseline DWI, RMHV on GRE-T2*, TTP, MTT, rCBF, rCBV, and the infarct volume at 72 hours on follow-up images in group 1. There is no significant difference of volumes among TTP, MTT, rCBF, and RMHV on GRE-T2* and the infarct volume at 72 hours. B, Baseline DWI, RMHV on GRE-T2*, and the infarct volume at 72 hours on follow-up images in group 2. There is no significant difference of volumes between RMHV on GRE-T2* and the infarct volume at 72 hours. C, Volumetric measurement of lesions on baseline DWI, RMHV on GRE-T2*, TTP, MTT, rCBF, and rCBV in group 3. There is no significant difference of volumes among TTP, MTT, rCBF, and RMHV on GRE-T2*. D. Kaya et al. AJNR Am J Neuroradiol 2009;30:1227-1232 ©2009 by American Society of Neuroradiology