کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10692736 1019737 2005 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
RF signals provide additional information on embolic events recorded during TCD monitoring
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم آکوستیک و فرا صوت
پیش نمایش صفحه اول مقاله
RF signals provide additional information on embolic events recorded during TCD monitoring
چکیده انگلیسی
Transcranial Doppler ultrasound (TCD) is commonly used to detect embolic signals in the cerebral circulation. However, current techniques to discriminate between signals from emboli and artifacts are subjective and ambiguous. The radiofrequency (RF) signal provides an extra dimension to the information available from conventional TCD systems that may help to interpret complex events. Artifacts generated by healthy volunteers and embolic signals recorded from a flow phantom were used to characterize the appearance of the two types of event. Characteristics of events, recorded during and immediately after carotid endarterectomy surgery, were compared with those from known sources. Additional information was provided by the RF signal on events recorded during TCD monitoring thus aiding classification. The RF signal may have a role as a “gold standard” for embolus detection. (E-mail: dhe@le.ac.uk)
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ultrasound in Medicine & Biology - Volume 31, Issue 5, May 2005, Pages 613-623
نویسندگان
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