![]() ![]() ![]() Transplantations, organ and tissue grafts. Pathologie des greffons, Surgery (general aspects). Transplantations, greffes d'organes et de tissus. General medicine general surgery, Médecine et chirurgie générales, Pediatrics, Pédiatrie, Sciences biologiques et medicales, Biological and medical sciences, Sciences medicales, Medical sciences, Chirurgie (generalites). ediciones medicas del hospital infantil de mexico federico gomez 3.japanese society of internal medicine 4.radiological society of north america 11.american association of neurological surgeons 11.american college of chest physicians 56.bulletin de l'academie veterinaire de france 2.journal of neurology, neurosurgery and psychiatry 5.southern medical journal (birmingham) 6.american journal of roentgenology (1976) 7.american journal of respiratory and critical care medicine 7.european journal of clinical microbiology & infectious diseases (print) 8.british journal of neurosurgery (print) 8.scandinavian journal of infectious diseases 10.journal of clinical microbiology (print) 13.journal of thoracic and cardiovascular surgery 18.the pediatric infectious disease journal 19.european journal of cardio-thoracic surgery 28. ![]() cardiology, blood circulation, phlebology 189.cardiologie, appareil circulatoire, phlebologie 189.bacterioses de l'appareil respiratoire 328.bacterial diseases of the respiratory system 328.Multiphase CT Angiography: A New Tool for the Imaging Triage of Patients with Acute Ischemic Stroke. Menon BK, d'Esterre CD, Qazi EM, Almekhlafi M, Hahn L, Demchuk AM, Goyal M. Regional leptomeningeal score on CT angiography predicts clinical and imaging outcomes in patients with acute anterior circulation occlusions. Menon BK, Smith EE, Modi J, Patel SK, Bhatia R, Watson TW, Hill MD, Demchuk AM, Goyal M. Improving the Evaluation of Collateral Circulation by Multiphase Computed Tomography Angiography in Acute Stroke Patients Treated with Endovascular Reperfusion Therapies. García-Tornel A, Carvalho V, Boned S, Flores A, Rodríguez-Luna D, Pagola J, Muchada M, Sanjuan E, Coscojuela P, Juega J, Rodriguez-Villatoro N, Menon B, Goyal M, Ribó M, Tomasello A, Molina CA, Rubiera M. In addition, good inter-rater reliability and prediction of clinical outcome have been reported 3. reduction of the impact of patient motion on images 2,3.images which are easily obtained and interpreted without postprocessing.The advantages of multi-phase CTA when compared CT perfusion include: While the most appropriate imaging technique to guide intervention in acute ischemic stroke is not entirely clear at present (January 2017), CT perfusion studies are widely used in many centers. a greater likelihood of successful recanalization.less risk of hemorrhagic transformation.Good collateral flow is associated with 1: Some sites use a single delayed phase CTA. The advantage of multi-phase is that it can detect temporal delay in the filling of vessels in addition to the prominence and extent of vessels detectable with a single-phase technique. The collateral blood flow is assessed by comparison of pial arterial filling in the ischemic area of the brain on CTA with that of similar arteries in the contralateral hemisphere. Multi-phase CTA provides cerebral angiograms in three distinct phases (peak arterial, peak venous and late venous) after the injection of contrast material, allowing for time-resolved assessment 3. On single-phase CT angiography (CTA), leptomeningeal collateral scoring systems are used to evaluate collateral flow, but can be inaccurate due to the absence of temporal resolution 2. Reliable identification of good versus bad collateral flow is essential to help guide patient selection for endovascular reperfusion 1. Brain tissue viability depends on many factors, with this technique assessing collateral leptomeningeal blood flow. The technique aims to quickly and reliably identify brain which is potentially salvageable with intervention. Multiphase CT angiography is an evolving imaging technique in acute ischemic stroke. ![]()
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