RECEPTION THE TEAM THE CENTERS EXAMINATIONS INFORMATION SHEETS PATIENT CIRCUIT You are here: Home Examinations (2) Arterioscanner EXAMS INFORMATION SHEETS PROFESSIONAL LINKS * National Federation of Radiological Doctors: * French Society of Radiology: * National Agency for the Safety of Medicines and Health Products: ASSOCIATIONS: * MEUPHINE: Association for Children and Young People with Disabilities in Ordinary Environments. RADIATION PROTECTION ARCHIVING COMMUNICATION APICRYPT ® IMS77 administration@ims77.com ARTERIOSCANNER It is a particular technique of the scanner to explore the vessels of the body (arteries and veins). This is the reference technique, after Doppler, to look for strictures (stenosis) or dilations (aneurysm) of the arteries. It requires the systematic use of a contrast medium. It is necessary to let us know if you are allergic, pregnant or likely to be. Fact Sheets: To scan Contrast media information Technique For the acquisition of vascular images, the technique uses the X-ray scanner in spiral mode, a venipuncture at the crease of the elbow and an automatic injector for the injection of iodinated contrast product. The injector is programmed to allow rapid injection at high flow rate and in sufficient quantity in a manner synchronized with the acquisition of the images. The arrival of the contrast product in the organ to be studied is sometimes automatically detected. The images acquired are processed by software which makes it possible to extract from them, by their density and their contrast, the specific vascular information of the angio-scanner. Vascular images can be analyzed in volume (3D) or in plane projections (2D). The quality of the images approximates that of arteriograms and often makes it possible to make the appropriate treatment decisions. Angiography may be secondarily indicated either to specify certain lesion aspects, or for an interventional radiology procedure, such as the localized treatment of an arterial narrowing. Indications The CT angiography can be used fairly easily on an outpatient basis for exploring arteries, with less risk than arteriography by direct puncture or catheterization. The thoracic angio-scanner is particularly indicated in the event of suspicion of pulmonary embolism. It also tends to replace angiocardiography for imaging the heart chambers and especially coronary angiography for exploring the coronary arteries. The CT angiogram can be used for the exploration of the thoracic aorta, the supra-aortic trunks (the vessels intended for the head and the upper limbs) for the search for intracranial aneurysms, for the exploration of the renal arteries, digestive arteries or the small pelvis and for the exploration of the arteries of the lower limbs. Contre-indications et effets secondaires Les contre-indications sont celles des produits de contraste iodés. Les limitations sont liées à l'irradiation par les rayons X. Outre les effets secondaires possibles des produits de contraste iodés, il faut mentionner la possibilité d'extravasation de produit de contraste, lorsque la veine ne résiste pas à l'injection. Par mesure de sécurité, l'injection est automatiquement interrompue et le désagrément reste habituellement mineur. Si ce n'est pas le cas, une surveillance médicale du site d'extravasation est recommandée. Quelques images: Angioscanner artériel des membres inférieurs Stent (flèche de gauche) thrombosé avec reperméabilisation ( fléche de droite) en aval par l'artère poplité haute au niveau du canal de Hunter Thrombose de l'artère poplitée Tibiales postérieures faibles et s'épuisant rapidement Trois artères rénales droite (flèche du haut) Anévrysme de l'aorte abdominale sous rénale (flèches du haut) Calcifications athéromateuses (flèche du milieu) Anévrysme de l'iliaque primitive (flèches du bas) Sténose de l'artère hypogastrique (fléche du bas) 1 2 1 Calcifications athéromateuses des deux bulbes 2 Sténose modérée de la carotide interne à son origine Sténose supérieure à 60% à l'origine de la carotide interne, aspect flexueux de l'artère vertébrale gauche dans son segment inter-transversaire Angioscanner des mains Le circuit patient Copyright © 2011 IMS 77 - Imagerie Médicale Sud 77. Tous droits réservés. Site created by Tonio Marques