کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1761222 | 1019638 | 2012 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Grading of Dynamic Cerebral Autoregulation Without Blood Pressure Recordings: A Simple Doppler-Based Method
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
آکوستیک و فرا صوت
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Grading of Dynamic Cerebral Autoregulation Without Blood Pressure Recordings: A Simple Doppler-Based Method Grading of Dynamic Cerebral Autoregulation Without Blood Pressure Recordings: A Simple Doppler-Based Method](/preview/png/1761222.png)
چکیده انگلیسی
Transcranial Doppler sonography allows for noninvasive assessment of dynamic cerebral autoregulation. A wider clinical use of this approach has been hampered by the need for continuous arterial blood pressure (ABP) measurements. We describe a new method of a pure Doppler signal based estimation of dynamic autoregulation using heart rate (HR) and cerebral blood flow velocity (CBFV) information. The phase between these two signals was assessed from 0.1 Hz oscillations induced by regular breathing. We compared this new approach with the standard method (phase between ABP and CBFV oscillations) in 93 patients with unilateral severe carotid artery obstruction. On a group level, the phase HR-CBFV differed significantly between ipsi- and contralateral sides (p = 0.024) and correlated significantly with the standard phase ABP-CBFV (r = 0.369, p < 0.001). The proposed method can, thus, detect impaired dynamic autoregulation in occlusive carotid artery disease using a single Doppler probe.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ultrasound in Medicine & Biology - Volume 38, Issue 9, September 2012, Pages 1546-1551
Journal: Ultrasound in Medicine & Biology - Volume 38, Issue 9, September 2012, Pages 1546-1551
نویسندگان
Linda Sommerlade, Björn Schelter, Jens Timmer, Matthias Reinhard,