scholarly journals MULTIPLE AND SIMULTANEOUS BLOOD FLOW MEASUREMENTS BY THE ULTRASONIC DOPPLER TECHNIQUE IN MAN, WITH SPECIAL REFERENCE TO THE CIRCULATORY EFFECTS OF INDUCED HYPERTENSION ON INTERNAL AND EXTERNAL CAROTID ARTERIES AND BRACHIAL ARTERY

1971 ◽  
Vol 35 (4) ◽  
pp. 405-412 ◽  
Author(s):  
MANABU MIYAZAKI
Keyword(s):  
Blood Flow ◽  
Special Reference ◽  
Brachial Artery ◽  
Carotid Arteries ◽  
External Carotid ◽  
Flow Measurements ◽  
Doppler Technique ◽  
Circulatory Effects ◽  
Induced Hypertension ◽  
Blood Flow Measurements

Estimation of Forearm Arterial Compliance in Essential Hypertension: A Preliminary Report

1982 ◽  
Vol 63 (s8) ◽  
pp. 87s-88s ◽  
Author(s):  
A. CH. Simon ◽  
J. A. Levenson ◽  
S. P. Laurent ◽  
M. E. Safar
Keyword(s):  
Blood Flow ◽  
Essential Hypertension ◽  
Brachial Artery ◽  
Diastolic Pressure ◽  
Arterial Compliance ◽  
Normal Subjects ◽  
Arterial System ◽  
Flow Measurements ◽  
Blood Pressures ◽  
Blood Flow Measurements

1. Simultaneous brachial artery pressure and blood flow measurements were made in 21 men, including six normal subjects and 15 patients with essential hypertension of the same age and diastolic pressure at the time of investigation. 2. Blood flow was evaluated by means of a pulsed Doppler device with a double transducer probe, enabling a precise evaluation of the calibre of the brachial artery. From analysis of the pressure-flow curves during diastole, forearm arterial compliance was estimated by using an original first-order model of the forearm arterial system. 3. Forearm arterial compliance was significantly decreased in hypertensive subjects. 4. Since patients and hypertensive subjects had similar blood pressures, the results indicate that the reduced forearm compliance was independent of blood pressure per se but may reflect in hypertensive subjects adaptive changes in the walls of peripheral large arteries.

scholarly journals Evaluation of human hemispheric blood flow based on non invasive carotid blood flow measurements using the range-gated Doppler technique.

Stroke ◽  
1982 ◽  
Vol 13 (3) ◽  
pp. 392-398 ◽  
Author(s):  
D M Payen ◽  
B I Levy ◽  
D J Menegalli ◽  
Y I Lajat ◽  
J A Levenson ◽  
...  
Keyword(s):  
Blood Flow ◽  
Flow Measurements ◽  
Carotid Blood Flow ◽  
Doppler Technique ◽  
Non Invasive ◽  
Blood Flow Measurements

Clinical Utility of Quantitative Cerebral Blood Flow Measurements during Internal Carotid Artery Test Occlusions

Neurosurgery ◽  
2002 ◽  
Vol 50 (5) ◽  
pp. 996-1005 ◽  
Author(s):  
Randolph S. Marshall ◽  
Ronald M. Lazar ◽  
William L. Young ◽  
Robert A. Solomon ◽  
Shailendra Joshi ◽  
...  
Keyword(s):  
Blood Flow ◽  
Cerebral Blood Flow ◽  
Carotid Artery ◽  
Internal Carotid Artery ◽  
Clinical Utility ◽  
Internal Carotid ◽  
Flow Measurements ◽  
Blood Flow Measurements

Doppler Blood Flow Measurements in Chronic Animal Preparations

1975 ◽  
Vol 49 (3) ◽  
pp. 17P-17P
Author(s):  
Maurice R. Cross ◽  
Clive Weller ◽  
E. B. Raftery
Keyword(s):  
Blood Flow ◽  
Flow Measurements ◽  
Blood Flow Measurements

Duplex Sonography of Normal Renal Allografts

1989 ◽  
Vol 30 (1) ◽  
pp. 53-56 ◽  
Author(s):  
B. Schwaighofer ◽  
F. Kainberger ◽  
F. Fruehwald ◽  
P. Huebsch ◽  
N. Gritzmann ◽  
...  
Keyword(s):  
Blood Flow ◽  
Resistive Index ◽  
Duplex Sonography ◽  
Invasive Technique ◽  
Flow Measurements ◽  
Renal Allografts ◽  
Significant Difference ◽  
Main Renal Artery ◽  
Long Term Follow Up ◽  
Blood Flow Measurements

Thirty-five patients with normal renal allografts as well as 10 healthy volunteers with normal native kidneys were examined by duplex sonography. Blood flow measurements were performed in the main renal artery as well as in segmental, interlobar and arcuate arteries. In both groups the normal range of variation in blood flow was defined by using the resistive index (RI). Doppler wave forms and RI of main renal arteries were both similar to those of their branches. In renal allografts as well as in native kidneys the blood flow pattern showed a rapid up-slope in systole followed by a gradual down-slope in early diastole, with a persistent flow throughout diastole. In addition, there was no significant difference in the RI between allografted and native kidneys. The interobserver variability was less than 10 per cent. The mean RI was 0.68 using all data points. Vascular rejection in 11 patients could be discriminated significantly (p<0.001). Duplex sonography is useful in evaluating renal blood flow. This simple and non-invasive technique seems to be useful in long-term follow-up of renal allograft recipients.

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