Home > Examinations > Doppler examination DOPPLER EXAMINATION Have you been prescribed a doppler exam and would like more information? The venous doppler echo is a medical imaging test to study the blood flow in the vessels. Before making an appointment for your venous Doppler, let's take a look at this medical examination. What is Doppler? Doppler ultrasound is a medical imaging test that studies blood flow in veins and arteries. Its objective is to detect the possible presence of an obstacle preventing good irrigation of the organs , and therefore poor blood circulation. The Doppler examination can therefore be prescribed to scan all parts of the body: it can in particular be an arterial Doppler of the neck (or tsa Doppler for supra-aortic trunks) or a Doppler of the lower limbs (for heavy legs, treatment of diseases or venous malformations or varicose veins). Why is it prescribed? Tout simplement lorsqu’il existe une suspicion de plaques d’athérome (rétrécissement d’une artère) ou de phlébite (caillot dans une veine). Lorsqu’il est couplé à une échographie, il donne des informations sur la forme des vaisseaux. On distingue plus particulièrement trois types de dopplers : Le doppler continu reproduit la vitesse du flux par un son que le médecin peut analyser via une oreillette Le doppler pulsé reproduit cette même vitesse sous la forme d’un graphique. Le doppler couleur reproduit une image du vaisseau. Ce dernier est bleu ou rouge selon le sens de la circulation sanguine. Déroulement de l'examen : The examination is carried out in the same way as an ultrasound. You are lying on your back. A gel is spread over the affected area to allow ultrasound transmission and good image quality. A pen-shaped probe is applied to the area to be examined, such as the leg if it is a lower limb Doppler. The latter emits ultrasound, not X-rays. This probe then propagates in the tissues and causes an echo each time it encounters an organ (the famous "Doppler effect", indicating a frequency shift of the emitted wave). The signal it emits is then analyzed and transformed into a sound, a curve or a color retracing the speeds of blood circulation. The exam lasts approximately 20 minutes. How to prepare for a doppler at the 94 medical imaging center? Passing a Doppler scan does not require any specific preparation. You can make an appointment directly in our radiology center located in Vitry-sur-Seine, 20 minutes from Paris. You do not need to be fasting except for the renal artery and abdomen Doppler. For the latter, it is advisable to be on an empty stomach for four hours. For the examination, remember to bring back your documents, such as your prescriptions and the prescription letter from your doctor, your vital card and your old photographs. We can quickly prepare an appointment for you to review. Precautions and risks: L’examen doppler est totalement indolore et tout comme l’échographie, il présente une totale innocuité. De la même manière, les risques sont inexistants. Pour votre doppler veineux, doppler vasculaire ou autre, n'hésitez pas à nous contacter pour prendre rendez-vous. LE CENTRE Qui sommes-nous ? Plateau technique Actualités ÉQUIPE EXAMENS service radiologie service scanner service IRM service échographie service Doppler service infilitrations INFORMATIONS PRATIQUES Démarche qualité Informations pratiques PLAN D'ACCÈS Contact - Mentions légales - Politiques des cookies @Imagerie 94 - All rights reserved 2017 - Website creation: Alteo Imagerie Médicale 94 uses cookies. By continuing to browse this site, you accept the use of cookies to provide you with tailored services and offers.