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Definition of postoperative hydrocephalus using the modified Frontal Horn Index (a/b) on postoperative follow-up brain computed tomography scans.
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Magnetic resonance imaging of the brain shows a septated rim-enhancing mass lesion in the left temporal lobe, with bright, restricted diffusion, and diffuse surrounding vasogenic edema (arrow).
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Brainstem infarction.A 55-year-old woman presenting with VCP after endovascular coiling of a right vertebral artery aneurysm. DWI at the level of the medulla oblongata showed a small area of restricted diffusion directly at the site of the right vagal nerve nucleus, indicative of infarction (arrow)
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A follow-up brain computed tomography scan, obtained after 27 days, showing the disappearance of the pneumocephalus.
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Coronal computed tomography scan of the temporal bone showing air within the basal turn of the cochlea (arrow).
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Computed tomography scan of the brain axial sections show agenesis of corpus callosum, asymmetry of cerebral hemispheres and pachygyria
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MRI aspect with left brain hemisphere subdural haematoma in patient M.F. of 41 years old (45 days after the initial discharge from hospital)
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Coronal computed tomography shows a superior orbital mass with bony destruction and brain extended.
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75-year-old male with dural sinus thrombosis. Axial FLAIR obtained after 6 months demonstrates a reduction of white matter signal alterations, with some chronic lacunar infarcts on the left frontal lobe.
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Fimbriosubicular distance as an indicator of HS width is a linear measurement perpendicular to the long axis of the temporal lobe in high-resolution coronal T1-weighted images
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Left superior semicircular canal dehiscence as seen on axial temporal bone computed tomography.
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Initial ultrasound images of the second intercostal space. White arrow indicates parietal pleura without lung sliding sign. Blanked arrow indicates horizontal artifacts.
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Magnetic resonance imaging of the brain (transverse view) of the patient showing two right intraventricular and one left intraventricular cystic lesions at varying stages. There is a larger 2.3-cm lesion in the posterior aspect of the right ventricle, which follows fluid signal on all sequences. There is subtle mass e... | |
Brain MRI axial T2WI without Gad showing left mastoid air cell opacification and involvement of the left petrous apex
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Coronal T1-weighted MRI (TR 472, TE 9.7 ms) showing thrombus within the left transverse sinus (short arrow) and a temporal lobe cortical vein (long arrow), with swelling of the left temporal lobe (arrowheads), consistent with an infarct.
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Post Whole Brain Radiotherapy (WBRT) Non Contrast Computerized Tomography (NCCT) head dated 18/10/12 showing mild dilatation of the ventricular system. Multiple enhancing nodules and perilesional edema seen in both cerebral and cerebellar hemispheres on the previous magnetic resonance imaging scan appears to have comp... | |
Overlay of a wide-field infrared image with macular AOSLO images. The white rectangles indicate the location of the four regions of interest for AOSLO imaging: superior-nasal (SN), superior-temporal (ST), inferior-temporal (IT), and inferior-nasal (IN). The asterisk indicates the center of the fovea. Scale bar: 200 μm... | |
Foetus at 32 + 2 GW with craniofacial maldevelopment. The axial T2-w image of the head shows a large orbitofrontal meningoencephalocele, with distinct protrusion of the frontal lobes
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Brain regions showing synchronized abnormalities across task and resting states in MDD group.Regions with synchronized abnormalities in the MDD group are shown by overlapping alterations revealed in task-activated brain maps and resting-based zALFF map, respectively. Among the regions, the bilateral anterior insulae (... | |
Primary intraventricular hemorrhage in the brain CT scan.
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Noncontrast axial computed tomography image shows a mixed solid (dashed white arrow) and cystic (solid white arrow) temporooccipital mass with a hyperattenuating solid component and a punctate calcification peripherally (dotted white arrow).
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MRI brain showed T2/FLAIR signal hyperintensity over the bilateral posterior head regions, consistent with PRES
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The patient's CT head scan. Arrow denotes an old left occipital lobe infarction.
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Postoperative image, brain computed tomography scan (with contrast)
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Computed tomography showing a hyperdense hemorrhagic soft tissue mass (*) in the right parieto-temporal region
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Postoperative axial T1 postgadolinium infusion image shows good resection of the mesial and infratemporal portion of the epidermoid cyst with minimal residual cyst noted within the cavernous sinus (arrow).
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Preoperative CT brain scan Sample figure title. CT brain scan-Old ischemic findings in the right hemisphere.
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T1-weighted axial view showing mildly enlarged ventricles and a contrast-enhancing lesion in the posterior fossa, exerting mass effect on the brainstem
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A 14-year-old boy with X-linked adrenoleukodystrophy. Axial T2-FLAIR image shows increased T2 signal in the peritrigonal regions extending across the splenium of the corpus callosum (white arrow) as well as the involvement of the frontal lobe white matter bilaterally (black asterisks).
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MRI six months following fourth course of radiation therapy. Improvement is shown in intensity of enhancement of the temporal lesion.
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Coronal T1 Large area of porencephaly in the left frontal and parietal lobes, in the anatomic distribution of left middle cerebral artery branches. Wallerian degeneration of the ipsilateral cerebral peduncle was also present (not shown).
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An 11-month-old female patient with GM2-gangliosidosis with bilateral thalamic involvement inT2 sequence of the brain MRI
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Magnetic resonance T1 image. A round-shaped, well-limited lesion, with contrast enhancement, located in the right striatum besides the the lateral ventricle with compressive effect on the brain parenchyma and adjacent structures deviation midline approximately 8.0 mm. Surrounding edema is observed
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Pre operative CT scan brain
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Axial computed tomography image showing bilateral extraconal masses along lateral orbital walls abutting the globes (large arrows) causing bilateral proptosis with extension of mass in right temporal fossa (small arrow)
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A representative image of deep grey matter structures (cyan, left thalamus; yellow, right thalamus; pink, left globus pallidus; green, right globus pallidus; blue, left putamen; red, right putamen; grey, left caudate; brown, right caudate).
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Postoperative T1-weighted MRI demonstrates expansion of the frontal lobe reinforcing the reconstructed, basal-frontal dura
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Planned micro electrode recording trajectories (light blue) and final electrode outcome revealed by PaCER (red) one day after surgery with brain shift still present.
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Axial CT image shows expansion of the right frontal and temporal bones
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Preoperative MRI scans of a 12-year-old girl with intractable epilepsy. A cerebral cavernous angioma with perilesional hemosiderin deposits was detectable in a right-sided mesiotemporal location.
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MRI brain T1W image showing hypointensity in the splenium of corpus callosum (white arrow)
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Arrangement for electrical stimulation and FCV recording in striatal brain slices. The striatum is easily identified by its anatomical location and the distinct fiber bundles in horizontal brain slices. Local electrical stimulation in the striatum was delivered using a bipolar tungsten electrode. The two tips of the s... | |
Ill-defined, hyperintense signal changes involving the bilateral fronto–parietal–occipital lobe parenchyma, with loss of the gray–white border distinction in the affected region on T2-weighted images
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MRI brain T2-weighted imaging showing underlying normal brain structure.
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6.7 × 4.5 cm large cystic lesion seen in left parietooccipital region. The lesion had large enhancing solid component. Mass effect with effacement of ipsilateral occipital horn of lateral ventricle and minimal midline shift of 3 mm toward right
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Sagittal Gd-enhanced brain MRI after 5-course chemotherapy shows complete disappearance of the tumor.
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T2-weighted MRI showing bilateral hyperintense parieto-occipital lesions.
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RM pre operatoria cerebro. Secuencia T1 con gadolinio. Corte axial. Lesión nodular intraxial que capta contraste de forma heterogénea con abundante edema perilesional a nivel parietal izquierdo
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CTA brain coronal image demonstrating diminutive right posterior communicating artery.
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Status of 54-year-old man with infarction in right middle cerebral arterial territory post EC-IC bypass. Contrast-enhanced MR angiography showed total occlusion of right internal carotid artery and hypoplastic right anterior cerebral artery A1 segment. Collateral perfusion to right middle cerebral artery is shown via ... | |
The brain MRI shows residual hematoma in the right basal ganglia and an additional mass lesion in the splenium portion of the right corpus callosum.
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Axial brain computerized tomography exhibiting diffuse cortical atrophy, prominent sulci, and ex vacuo ventricular enlargement.
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MRI of the brain. DWI shows no restricted diffusion at the left medulla which correlates to increased diffusion in ADC.Abbreviations: ADC, apparent diffusion coefficient; DWI, diffusion-weighted imaging; MRI, magnetic resonance imaging.
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Diffusion-weighted images MRI brain: areas of restricted diffusion in the region of the brain stem
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T1-weighted contrast enhanced magnetic resonance image demonstrating a mass with peripheral enhancement and central necrosis involving both frontal lobes with extension into the corpus callosum after 58 months from diagnosis of GM.
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Sagital MRI T1 weighted image of the brain and sella showing features of increased intracranial pressure in a 7-year-old boy, partial empty sella syndrome.
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T1-weighted sagittal image of brain MRI shows a cerebellar haematoma with a hemosiderin ring suggesting subacute haemorrhage.
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Sagittal section of the MRI brain demonstrating the pituitary mass.
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Ultrasonography of Temporal Artery of a Patient with Giant Cell Arteritis.Left: Normal duplex ultrasonography of the left temporal artery of a patient with giant cell arteritis. Right: Duplex ultrasonography of the right temporal artery of the same patient, showing peri-luminal dark halo.
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Angiography of the Left Anterior Circulation of the Brain—Following ThrombolysisAntero-posterior view demonstrates a renewed flow in the left internal carotid artery and the left hemisphere.
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A computed tomography brain scan demonstrating bleeding into the tumor secondary to pituitary apoplexy (blue arrow).
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Patient # 1, status at 3 months post suboccipital craniectomy fusion/ stabilization with rib autograft. Clivo-axial angle was increased from 115° to 152°, the patient resumed non-contact sports 6 months after surgery
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CT brain coronal section showing the lesion causing squashing of the ipsilateral frontal horn and compression (imaging done in 2011)
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MRI brain (Coronal section) showing right sided temporopareital infarction
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MRI of the brain showing abnormal gadolinium enhancement in the swollen left oculomotor nerve (solid arrow). The right oculomotor nerve is indicated by a dotted arrow.
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Axial FLAIR MRI brain showing left temporal gyral hyper intensities (arrow) in addition to arachnoid cyst
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MRI of head on admission, showing multiple infarctions in the left cerebellum.
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Brain MRI of patient AIV-5 showing cerebellar atrophy.
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The second brain magnetic resonance imaging (MRI) done on the fourth hospital day shows accentuation of leptomeningeal contrast enhancement along the sulci of both cerebral hemisphere in T1-weighted image, findings suggestive of meningitis.
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The 3D T1-weighted MRI image of the pilocarpine-treated brain. Yellowish white areas (arrowheads) correspond to high T1 signals.
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Delineation of regions of interest on T1-weighted magnetic resonance imaging of the brain. The hippocampus, amygdala, parahippocampus, and fusiform gyrus are delineated. All structure volumes included both the left and right sides.
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CT scan after 3 months of surgery at the time of follow up, showing previous craniotomy site with normal brain scan
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MR T1-weighted image of the brain after IV administration of paramagnetic contrast.
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Computed tomography brain scan without contrast showing a generalized loss of the supratentorial grey-white matter differentiation with effacement of sulci indicating increasing degree of diffuse cerebral edema. Asymmetry of lateral ventricles is seen with slit-like appearance of anterior horns. An effacement of the b... | |
Sagittal T1-weighted images of brain is showing absence of corpus callosum
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MRI brain T2WI (axial view) showing isointense to hypo intense lesion in the left frontal lobe
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Brain magnetic resonance imaging, T2-weighted image showing hyper-signal demyelinating plaques in the periventricular and deep white matter areas
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MRI of the brain demonstrating left parieto-occipital subcortical T2 hypointensity on fluid-attenuated inversion recovery.
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Sagittal midline T1W image reveals multiple foci of high signal intensity involving the basal ganglia, temporal sulci and cerebellum.
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Coronal T1-weighted image of magnetic resonance imaging of the brain done 2 years later, show thinning of posterior part of the body of corpus callosum
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T2W MRI brain showing an area of demyelination at the junction of right middle cerebellar peduncle and pons
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Magnetic resonance imaging scan of the brain of the second patient (TL, 50 years old; axial section) showing periventricular confluent lesions, of a somewhat smaller extent when compared with the first patient.Abbreviation: TL, second patient.
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Computed tomography of the first patient showing calcification scattered in the brain with properly sited ventricular catheter and slightly dilated left lateral ventricle
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Brain metastases (computed tomography)
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MRI of the brain with and without contrast displayed left frontal lobe infarction (red arrow).
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Lateral projections of implanted ECoG recording with a grid and two electrode strips resulting in a total of 128 contacts that cover a large part of the left hemisphere. Reference (r), ground (g) and recording channels on the frontal (f) and parietal (p) cortex for monitoring are indicated.
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On initial brain computed tomography, a small amount of acute subdural hematoma (SDH) and anterior falx SDH were seen on the right convexity.
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Axial T2-weighted magnetic resonance imaging showing mass effect on the optic chiasma, and perianeurysmal brain edema was not found apparently.
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MRI brain: large right frontal lobe mass.
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MRI of the brain (coronal view) shows a right cerebellar ring-enhancing lesion.MRI of the brain from a vertical, frontal plan (coronal view) showing a large (25.3 mm diameter) ring-enhancing lesion in the patient's cerebellum, which is indicated by the arrow. MRI - magnetic resonance imaging.
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A cranial computerized tomography scan from case 2, showing extensive encephalomalacia at the bilateral frontal lobes and the right temporal lobe from previous trauma (arrows).
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Brain-computed tomography upon first admission showed encephalomalacic change in the right basal ganglia and thalamus caused by an intracranial hemorrhage.
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MRI of patient showing multiple ring-enhanced lesions in the cerebellum.
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Plain axial CT scan shows a large right sided temporo-parieto-occipital hypodense area with foci of hyper attenuation within, suggestive of hemorrhagic transformation. The right lateral ventricle is effaced and there is evidence of subfalcine herniation and midline shift
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MRI brain showing hyperintensity in the right optic nerve head
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Axial CT reconstruction image shows avulsion fracture of the right occipital condyle (type III according to Anderson-Montesano classification).
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A computed tomography scan of the patient's brain at initial presentation, demonstrating acute infarction in the right occipital and left occipito-parietal lobes.
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Pre-operative axial non-contrast brain CT that shows a lenticularly-shaped hyperdensity, consistent with an epidural hematoma, exerting a mass effect on the adjacent left parietal lobe.
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Sagittal magnetic resonance imaging scan of patient 4 at the age of 6 months. The frontal lobes are hypoplastic (arrowhead). The corpus callosum is thinned (star) and the brainstem is flattened (arrow).
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Magnetic resonance imaging showed well defined homogenously enhancing extra-axial space occupying lesion involving right parietal parasagital region adjacent to superior sagittal sinus with possibility of meningioma
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