1.2 Imaging for people who have had a suspected TIA or acute non-disabling stroke Suspected TIA 1.2.1 Do not offer CT brain scanning to people with a suspected TIA unless there is clinical suspicion of an alternative diagnosis that CT could 2022 1.2.2 After specialist assessment in the TIA clinic, consider MRI (including diffusion-weighted and blood-sensitive sequences) to determine the territory of ischaemia, or to detect haemorrhage or alternative pathologies. If MRI is done, perform it on the same day as the For a short explanation of why the committee made these recommendations and how they might affect practice, see the rationale and impact section on imaging for people who have had a suspected TIA or acute non-disabling stroke. Full details of the evidence and the committee's discussion are in evidence review C: TIA imaging. Carotid imaging 1.2.3 Everyone with TIA who after specialist assessment is considered as a candidate for carotid endarterectomy should have urgent carotid Urgent carotid endarterectomy 1.2.4 Ensure that people with stable neurological symptoms from acute non- disabling stroke or TIA who have symptomatic carotid stenosis of 50% to 99% according to the NASCET (North American Symptomatic Carotid Endarterectomy Trial) criteria: are assessed and referred urgently for carotid endarterectomy to a service following current national standards (see the NHS England and NHS Improvement National Stroke Service Model) receive best medical treatment (control of blood pressure, antiplatelet agents, cholesterol lowering through diet and drugs, lifestyle advice). 