scholarly journals Performance and Analysis of Blood Flow through Carotid Artery

10.5772/50942 ◽  
2011 ◽  
Vol 3 ◽  
pp. 24 ◽  
Author(s):  
Anil Kumar Gupta
Keyword(s):  
Blood Flow ◽  
Carotid Artery ◽  
Flow Through

Analytical Prediction of the Heat Transfer From a Blood Vessel Near the Skin Surface Cooled by a Symmetrical Strip

1975 ◽  
Vol 97 (1) ◽  
pp. 61-65 ◽  
Author(s):  
J. C. Chato ◽  
A. Shitzer
Keyword(s):  
Heat Transfer ◽  
Blood Flow ◽  
Steady State ◽  
Carotid Artery ◽  
Blood Vessel ◽  
Analytical Method ◽  
Skin Surface ◽  
Analytical Prediction ◽  
Flow Through ◽  
Optimum Width

A steady-state analytical method has been developed to estimate the amount of heat extracted from a blood vessel running close to the skin surface which is cooled in a symmetrical fashion by a cooling strip. The results indicate that the optimum width of a cooling strip is approximately three times the depth to the centerline of the blood vessel. The heat extracted from a blood vessel similar to the carotid artery by such a strip is about 0.9 w/m-deg C, which is too small to affect significantly the temperature of the blood flow through a main blood vessel, such as the carotid artery.

Comparative study of Newtonian and Non-Newtonian blood flow through a stenosed carotid artery

2018 ◽  
Author(s):  
Mohammad Matiur Rahman ◽  
Md. Anwar Hossain ◽  
Khairuzzaman Mamun ◽  
Most. Nasrin Akhter
Keyword(s):  
Blood Flow ◽  
Carotid Artery ◽  
Comparative Study ◽  
Flow Through

Comparative study of Newtonian physiological blood flow through normal and stenosed carotid artery

2017 ◽  
Author(s):  
Mohammad Matiur Rahman ◽  
Md. Anwar Hossain ◽  
Khairuzzaman Mamun ◽  
Most. Nasrin Akhter
Keyword(s):  
Blood Flow ◽  
Carotid Artery ◽  
Comparative Study ◽  
Flow Through

Relationship between arterial and portal vein immunoreactive glucagon during exercise

1993 ◽  
Vol 75 (2) ◽  
pp. 724-729 ◽  
Author(s):  
D. H. Wasserman ◽  
D. B. Lacy ◽  
D. P. Bracy
Keyword(s):  
Blood Flow ◽  
Carotid Artery ◽  
Portal Vein ◽  
Indocyanine Green ◽  
Treadmill Exercise ◽  
Hepatic Glucose Production ◽  
Liver Blood Flow ◽  
Glucose Production ◽  
Hepatic Glucose ◽  
Flow Through

The importance of changes in glucagon in the regulation of hepatic glucose production (Ra) during exercise has been questioned, as an increase in arterial immunoreactive glucagon (IRG) is not always detectable. However, IRG in the portal vein (PV) and not in the artery is most relevant, as flow through PV is approximately 80% of liver blood flow. To assess the extent that arterial IRG reflects the levels the liver is exposed to in PV, dogs (n = 5) were implanted with catheters in a carotid artery, hepatic vein (HV), and PV. Dogs were studied > or = 16 days later during rest and 150 min of moderate treadmill exercise, with indocyanine green and [3–3H]glucose infused to assess hepatic plasma flow (HPF) and hepatic Ra. IRG was 66 +/- 7, 73 +/- 8, and 81 +/- 7 pg/ml in the artery, HV, and PV at rest; it rose at 10 and 150 min of exercise to 89 +/- 9 and 127 +/- 13 pg/ml in the artery, 106 +/- 17 and 186 +/- 21 pg/ml in HV, and, by considerably more, to 153 +/- 20 and 261 +/- 25 pg/ml in PV. HPF fell by approximately 30% with exercise. The fall in HPF accounted for < 11% of the increased arterial-to-PV IRG gradient during exercise, with increased splanchnic IRG release comprising the remainder. Ra was linearly related to IRG levels in the three vessels.(ABSTRACT TRUNCATED AT 250 WORDS)

Ipsilateral hyperperfusion after neck clipping of a giant internal carotid artery aneurysm

2002 ◽  
Vol 97 (5) ◽  
pp. 1233-1236 ◽  
Author(s):  
Hideki Murakami ◽  
Makoto Inaba ◽  
Akiyoshi Nakamura ◽  
Takakazu Ushioda
Keyword(s):  
Blood Flow ◽  
Carotid Artery ◽  
Internal Carotid Artery ◽  
Internal Carotid ◽  
Artery Aneurysm ◽  
Giant Aneurysm ◽  
Content Type ◽  
Circulatory Disturbance ◽  
Internal Carotid Artery Aneurysm ◽  
Flow Through

✓ A 48-year-old woman exhibited hyperperfusion soon after undergoing a successful clip operation involving multiple clip placement for a giant internal carotid artery (ICA) aneurysm. Intraarterial digital subtraction angiography demonstrated a left paraclinoid giant aneurysm. Multiple clips were placed to obliterate the aneurysm during a 7minute temporary ICA occlusion. Intraoperative Doppler ultrasound flowmetry showed that the blood flow through the ICA distal to the aneurysm increased from 71.6 ml/minute before clipping to 123.3 ml/minute after. The patient exhibited right hemiparesis and motor aphasia after the operation. Postoperative imaging studies revealed an increase in perfusion and diffuse edema in the left cerebral cortex. The symptoms and diffuse brain edema gradually resolved. In this case, increase in blood flow through the ICA distal to the aneurysm may have played an important role in the circulatory disturbance.

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