Transcranial Doppler: Techniques and advanced applications: Part 2
نویسندگان
چکیده
منابع مشابه
Three-dimensional Doppler. Techniques and clinical applications.
AIMS Colour Doppler is the most widely used technique for assessing valve disease, but eccentric regurgitant jets cannot be visualized and measured by conventional 2D techniques. We have developed a new procedure for three-dimensional (3D) reconstruction of colour Doppler signals. METHODS AND RESULTS Fifty patients with mitral regurgitation underwent transoesophageal echocardiography and 3D a...
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Transcranial Doppler (TCD) is widely used to investigate the effects of anesthetic drugs on cerebral blood flow. Its repeatability and non-invasivity makes it an ideal, first choice method. Anesthesia providers are required to be conscious of the cerebral hemodynamic effects of drugs given in their practice, especially in neurosurgery and in subjects with impaired brain functions. The purpose o...
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1 σ-fields and random variables Week 1 3 1.1 σ-fields . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.2 σ-field generated by a collection of events . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 1.3 Sub-σ-field . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 1.4 Random variables . . . . . . . . ...
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Transcranial Doppler ultrasound allows measurements of blood flow velocity to be made from the basal intracerebral vessels. The major advantages of transcranial Doppler ultrasound are that it is non-invasive, relatively cheap, can be performed with portable machines, allows monitoring for prolonged periods, and has a high temporal resolution making it ideal for studying dynamic cerebrovascular ...
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In this paper we present an in-depth review on the trends and the directions taken by the researchers worldwide in Optical Code Division Multiple Access (OCDMA) systems. We highlight those trends and features that are believed to be essential to the successful introduction of various OCDMA techniques in communication systems and data networks in near future. In particular we begin by giving a c...
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ژورنال
عنوان ژورنال: Annals of Indian Academy of Neurology
سال: 2016
ISSN: 0972-2327
DOI: 10.4103/0972-2327.173407