The local xenon washout method applied to the study of blood flow in subcapsular cortex of the canine kidney

1983 ◽  
Vol 396 (2) ◽  
pp. 182-183 ◽  
Author(s):  
Ulrik Abildgaard ◽  
O. Amtorp ◽  
S. Hans� ◽  
P. Rosenkilde ◽  
P. Sejrsen
Keyword(s):  
Blood Flow ◽  
Xenon Washout ◽  
Canine Kidney

Blood flow of experimental liver metastases in rat as evaluated by the locally injected 133-Xenon washout

1985 ◽  
Vol 185 (3) ◽  
pp. 207-215 ◽  
Author(s):  
C. Merkel ◽  
P. P. Cagol ◽  
P. P. Da Pian ◽  
M. Bolognesi ◽  
D. Sacerdoti ◽  
...  
Keyword(s):  
Blood Flow ◽  
Liver Metastases ◽  
Experimental Liver ◽  
Xenon Washout

scholarly journals Alteration of renal blood flow during sequential embolization of the canine kidney

1988 ◽  
Vol 29 (6) ◽  
pp. 727-729
Author(s):  
D. P. Link ◽  
B. M. T. Lantz ◽  
M. Swanson ◽  
H. Tesluk
Keyword(s):  
Blood Flow ◽  
Renal Blood Flow ◽  
Canine Kidney

scholarly journals Intrarenal Blood Flow Distribution (IRBF) in the Puppy Using Xenon Washout and Microspheres

1970 ◽  
Vol 4 (5) ◽  
pp. 446-446
Author(s):  
Pedro A Jose ◽  
Alexander G Logan ◽  
Gilbert M Eisner ◽  
Lawrence M Slotkoff ◽  
Charles E Hollerman ◽  
...  
Keyword(s):  
Blood Flow ◽  
Flow Distribution ◽  
Blood Flow Distribution ◽  
Intrarenal Blood Flow ◽  
Xenon Washout

Noradrenaline Secretion by the Human Kidney

1978 ◽  
Vol 55 (s4) ◽  
pp. 85s-87s ◽  
Author(s):  
P. W. De Leeuw ◽  
H. E. Falke ◽  
R. Punt ◽  
W. H. Birkenhäger
Keyword(s):  
Blood Flow ◽  
Human Kidney ◽  
Treated Group ◽  
Blood Samples ◽  
Hypertensive Patients ◽  
Active Renin ◽  
Noradrenaline Secretion ◽  
Propranolol Treatment ◽  
Arteriovenous Difference ◽  
Xenon Washout

1. In 20 subjects with uncomplicated essential hypertension, 10 of whom were on propranolol treatment, several blood samples were drawn simultaneously from the renal artery and vein after angiographic studies. In these samples we determined concentrations of noradrenaline, active renin, aldosterone and cortisol. 2. Renal blood flow was measured in all patients by Hippuran-clearance and xenon-washout. 3. Despite marked variations in the arteriovenous difference of noradrenaline, it was apparent in both groups that the kidney is able to release noradrenaline. 4. In the propranolol-treated group noradrenaline secretion by the kidney was enhanced when compared with untreated hypertensive patients.

Analysis of the Weinbaum-Jiji Model of Blood Flow in the Canine Kidney Cortex for Self-Heated Thermistors

1994 ◽  
Vol 116 (2) ◽  
pp. 201-207 ◽  
Author(s):  
Jonathan W. Valvano ◽  
Sungwoo Nho ◽  
Gary T. Anderson
Keyword(s):  
Heat Transfer ◽  
Blood Flow ◽  
Steady State ◽  
Dominant Role ◽  
Kidney Cortex ◽  
Transfer Model ◽  
Actual Length ◽  
Physical Measurements ◽  
Continuous Power ◽  
Canine Kidney

The Weinbaum-Jiji equation can be applied to situations where: 1) the vascular anatomy is known; 2) the blood velocities are known; 3) the effective modeling volume includes many vessels; and 4) the vessel equilibration length is small compared to the actual length of the vessel. These criteria are satisfied in the situation where steady-state heated thermistors are placed in the kidney cortex. In this paper, the Weinbaum-Jiji bioheat equation is used to analyze the steady state response of four different sized self-heated thermistors in the canine kidney. This heat transfer model is developed based on actual physical measurements of the vasculature of the canine kidney cortex. In this model, parallel-structured interlobular arterioles and venules with a 60 μm diameter play the dominant role in the heat transfer due to blood flow. Continuous power is applied to the thermistor, and the instrument measures the resulting steady state temperature rise. If an accurate thermal model is available, perfusion can be calculated from these steady-state measurements. The finite element simulations correlate well in shape and amplitude with experimental results in the canine kidney. In addition, this paper shows that the Weinbaum-Jiji equation can not be used to model the transient response of the thermistor because the modeling volume does not include enough vessels and the vessel equilibration length is not small compared to the actual length of the vessel.

Alteration of renal blood flow during sequential embolization of the canine kidney

1988 ◽  
Vol 29 (6) ◽  
pp. 727-729
Author(s):  
D. P. Link ◽  
B. M. T. Lantz ◽  
M. Swanson ◽  
H. Tesluk
Keyword(s):  
Blood Flow ◽  
Renal Blood Flow ◽  
Canine Kidney

scholarly journals Pressure Natriuresis and Autoregulation of Inner Medullary Blood Flow in Canine Kidney

Hypertension ◽  
1997 ◽  
Vol 29 (1) ◽  
pp. 210-215 ◽  
Author(s):  
Dewan S.A. Majid ◽  
Murrell Godfrey ◽  
Sophia A. Omoro
Keyword(s):  
Blood Flow ◽  
Medullary Blood Flow ◽  
Pressure Natriuresis ◽  
Canine Kidney

A Study of the Pharmacologic Control of Blood Flow to Acute Skin Flaps Using Xenon Washout. Part I

1983 ◽  
Vol 71 (3) ◽  
pp. 387-398 ◽  
Author(s):  
Philip M. Hendel ◽  
David L. Lilien ◽  
Harry J. Buncke
Keyword(s):  
Blood Flow ◽  
Skin Flaps ◽  
Xenon Washout
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