Azeddine Attir

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Wireless sensor networks operate typically in a low power low connectivity environment. Indeed, communications in such networks are unreliable because of nodes failures (battery depletion, physical damage, etc.), and loss of connectivity (obstacles, interference, etc.). The failure of sensor nodes should not affect the overall operation of the sensor(More)
The aim of the study was to evaluate the clinical usefulness of transesophageal echocardiography in the imaging of the left main coronary artery. The group tested--consisted of 26 patients with angina pectoris and 8 controls. The identification and adequate images of the left main coronary artery were obtained in 33 of 34 (97%) patients. In 5 of 26 patients(More)
We report an uncommon case of atrial septal aneurysm associated with mitral valve prolapse. A 28 year old woman was studied with transthoracic and transesophageal echocardiography (TEE). Transthoracic echocardiography suggested mitral valve prolapse. TEE with color mapping was performed. Atrial septal aneurysm and mitral valve prolapse was found. The study(More)
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