کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10691535 | 1019600 | 2014 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Middle Cerebral Artery Blood Flows by Combining TCD Velocities and MRA Diameters: In Vitro and In Vivo Validations
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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: Middle Cerebral Artery Blood Flows by Combining TCD Velocities and MRA Diameters: In Vitro and In Vivo Validations Middle Cerebral Artery Blood Flows by Combining TCD Velocities and MRA Diameters: In Vitro and In Vivo Validations](/preview/png/10691535.png)
چکیده انگلیسی
Non-invasive transcranial Doppler (TCD) is widely used for blood velocity (BV, cm/sec) measurements in the human middle cerebral artery (MCA). MCABV measurements are accepted as linear with MCA blood flow (MCABF). Magnetic resonance angiography (MRA) provides measurements of MCA lumen diameters that can be combined with TCD MCABV to calculate MCABF (mL/min). We tested the precision and accuracy of this method against a flow phantom and in vivo proximal internal carotid artery blood flow (ICABF). In vitro precision (repeated measures) and accuracy (vs. time collection) gave correlations coefficients of 0.97 and 0.98, respectively (both p < 0.05). In vivo precision (repeated measures) and accuracy (vs. ICABF) gave correlation coefficients of 0.90 (left and right), 0.94 (left) and 0.93 (right) (all p < 0.05). Bilateral MCABF in 35 adults were similar (left, 168 ± 72 mL/min; right, 180 ± 69 mL/min; p > 0.05). Results suggest that blood velocity by TCD and lumen diameter by MRA can be combined to estimate absolute values of MCABF.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ultrasound in Medicine & Biology - Volume 40, Issue 11, November 2014, Pages 2692-2699
Journal: Ultrasound in Medicine & Biology - Volume 40, Issue 11, November 2014, Pages 2692-2699
نویسندگان
K.A. Yonan, E.R. Greene, J.M. Sharrar, A. Caprihan, C. Qualls, C.A. Roldan,