A Study of the Relationship Between Radioactive Sodium Clearance and Directly Measured Blood Flow in the Biceps Muscle of the Dog

Prentice, T. C.; Stahl, Robert R.; Dial, Norman A.; Ponterio, Frank V.

doi:10.1172/jci103103

Cited by 13 publications

(4 citation statements)

References 8 publications

(7 reference statements)

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“…In this range of blood flow, Prentice, Stahl, Dial, and Ponterio studied the total flow and the Na24 clearance in the isolated biceps muscle of the dog (13). Only a fairly gross correlation of the two parameters was found, which may be considered as a corollary of the complexity of the factors determining ClNa in this flow range.…”

Section: Discussionmentioning

confidence: 99%

Muscle Blood Flow in Normal Man and in Patients with Intermittent Claudication Evaluated by Simultaneous Xe133 and Na24 Clearances *

Lassen¹

1964

J. Clin. Invest.

143

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Section: Discussionmentioning

confidence: 99%

Muscle Blood Flow in Normal Man and in Patients with Intermittent Claudication Evaluated by Simultaneous Xe133 and Na24 Clearances *

Lassen¹

1964

J. Clin. Invest.

143

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“…However Gosselin & Audino (1971) found that the ratio of Na'311/'33Xe disappearance rates varied with the stimulus that increased the blood flow and under certain conditions the ratio was unity near a flow of 20 ml min-' 100 g of muscle -'. Walder (1955) and Prentice, Stahl, Dial & Ponterio (1955) found a linear increase in 24Na disappearance rates with changes in blood flow within the physiological range. In studies on forehead skin blood flow we have found that the disappearance rates of Na13'I, ' "Xe and Ciodoantipyrine were very rapid and similar (Coffman, 1969).…”

Section: E T H O D Smentioning

confidence: 96%

Total and Nutritional Blood Flow in the Finger

Coffman

1972

Clinical Science

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1. Total and nutritional flow in the fingertip were investigated during reflex sympathetic nerve stimulation (total body cooling) or adrenergic nerve transmitter administration. Nutritional flow was measured by the disappearance rate of a local depot of Na13'I, and total fingertip flow by venous occlusion plethysmography.2. With body cooling the decrease in nutritional flow was not significant, but total and therefore arteriovenous shunt flow decreased significantly.3. Norepinephrine infused into the brachial artery decreased total and nutritional flow significantly although total flow decreased more than nutritional.4. It is concluded that sympathetic nervous system activity exerts a greater effect on finger arteriovenous shunt flow than on nutritional flow. Therefore nutritional flow is not adversely affected.

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“…While Kety found only a single clearance rate following intramuscular injectior of isotope, Dobson and Warner 48 and Prentice and colleagues" 4 have found, following intra-arterial injection of Na 24 , that there appear to be three rates of muscle uptake of Na and presumably then three rates of tissue perfusion. Here again the adequacy of the methods is difficult to assess since the blood-flow figures have not been sufficiently compared with results simultaneously obtained by other methods 54 and since the clinical reports do not seem unanimously enthusiastic. 55 "…”

mentioning

confidence: 99%

Use of External Counting Technics In Studies of the Circulation

Conn

1962

Circulation Research

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A variety of external counting technics has been used to study the circulation. Brief consideration has been given to some of those concerned with measurement of cardiac output, myocardial and other regional blood flows, and cardiopulmonary volumes, and to those related to the evaluation of vascular shunts. These technics have much in common. They are simple to carry out, require little time to accomplish, and entail little risk for the subject. At the same time, they are to varying extents imprecise, and are not as accurate as methods currently available or methods of undetermined validity or both. They do not offer the means to measurement of intravascular pressures and so cannot replace cardiac catheterization. As yet, little new information about the circulation has been gained by application of these methods. The ultimate place of external counting technics in the study of the circulation is still undetermined. The best prediction is that these methods will probably supplement but not replace diagnostic methods now in use. They should serve a valuable function as tests for screening of subjects being considered for more definitive and laborious procedures and as supplementary tools in the performance of these more definitive astudies.

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A Study of the Relationship Between Radioactive Sodium Clearance and Directly Measured Blood Flow in the Biceps Muscle of the Dog

Cited by 13 publications

References 8 publications

Muscle Blood Flow in Normal Man and in Patients with Intermittent Claudication Evaluated by Simultaneous Xe133 and Na24 Clearances *

Muscle Blood Flow in Normal Man and in Patients with Intermittent Claudication Evaluated by Simultaneous Xe133 and Na24 Clearances *

Total and Nutritional Blood Flow in the Finger

Use of External Counting Technics In Studies of the Circulation

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