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> Meningitis, Encephalitis, Leptomeningeal spread > Cavernous angioma, Amyloid angiopathy, Neurocysticercosis > Tumour, Metastases, Cranial nerve lesion, Indeterminate intracranial lesion, IAC mass Indications for contrast enhancement brain scans An appropriate angle must be given in the coronal plane on a tilted head (perpendicular to the line of 3rd ventricle and brain stem). Check the positioning block in the other two planes. Slices must be sufficient to cover the whole brain from the vertex to the foramen magnum. This angle will reduce air-bone interface artefacts from the Para nasal sinuses. Plan the DWI axial slices on the sagittal plane angle the position block parallel to the line from the glabella to the foramen magnum. Slices must be sufficient to cover the brain from temporal lobe to temporal lobe. An appropriate angle must be given in the coronal plane on a tilted head (parallel to the line along 3rd ventricle and brain stem). Plan the sagittal slices on the axial plane angle the position block parallel to midline of the brain. Slices must be sufficient to cover the whole brain from the frontal sinus to the line of the occipital protuberance. An appropriate angle must be given in the axial plane on a tilted head (perpendicular to mid line of the brain). Plan the coronal slices on the sagittal plane angle the position block perpendicular to the corpus callosum. An appropriate angle must be given in coronal plane on a tilted head (perpendicular to the line of 3rd ventricle and brain stem).
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Slices must be sufficient to cover the whole brain from the vertex to the line of the foramen magnum. Plan the axial slices on the sagittal plane angle the position block parallel to the genu and splenium of the corpus callosum. Suggested protocols, parameters and planningĪ three plane localizer must be taken in the beginning to localise and plan the sequences. Give cushions under the legs for extra comfortĬentre the laser beam localiser over the glabella Position the head in the head coil and immobilise with cushions Offer earplugs or headphones, possibly with music for extra comfort Gadolinium should only be given to the patient if GFR is > 30 relative or staff )Ĭontrast injection risk and benefits must be explained to the patient before the scan If possible provide a chaperone for claustrophobic patients (e.g. Pregnancy (risk vs benefit ratio to be assessed)Ī satisfactory written consent form must be taken from the patient before entering the scanner roomĪsk the patient to remove all metal objects including keys, coins, wallet, cards with magnetic strips, jewellery, hearing aid and hairpins Intracranial aneurysm clips (unless made of titanium) cardiac pacemaker, insulin pump biostimulator, neurostimulator, cochlear implant, and hearing aids) Please check our new video tutorial for protocols and planningĪny electrically, magnetically or mechanically activated implant (e.g. > Loss of consciousness, seizures, epilepsy > Demyelinating disease, multiple sclerosis > Cognitive decline, neurodegenerative disorders, dementia > Infection, inflammation, meningitis, encephalitis, HIV, AIDS, TB Transient ischaemic attack (TIA), cerebrovascular attack (CVA)