AJP - GI Fuel your research with LabChart
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

Am J Physiol Gastrointest Liver Physiol 262: G934-G939, 1992;
0193-1857/92 $5.00
This Article
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Greenway, C. V.
Right arrow Articles by Rothe, C. F.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Greenway, C. V.
Right arrow Articles by Rothe, C. F.

AJP - Gastrointestinal and Liver Physiology, Vol 262, Issue 5 934-G939, Copyright © 1992 by American Physiological Society

ARTICLES

Ultrasonic crystal measurement of blood volume changes in liver and spleen

C. V. Greenway and C. F. Rothe
Department of Pharmacology, University of Manitoba, Winnipeg, Canada.

Two methods of measurement of splenic and hepatic vascular capacitance responses were compared in cats anesthetized with pentobarbital. For the spleen, measurements using ultrasonic crystals were compared with recordings of splenic weight. The cube of the relative change in thickness at one point on the longitudinal axis of the spleen was closely correlated with the overall change in spleen weight. For the liver, measurements by ultrasonic crystals were compared with plethysmographic recordings of liver volume. Individual measurements of cubed relative thickness did not correlate well with plethysmographic volume, and two sets of crystals on the same liver lobe gave different estimates of relative liver volume. However, averaged measurements for a group of animals showed similar means by the two methods. We conclude that ultrasonic crystals, when appropriately attached, can reliably monitor changes in splenic volume, but that for the liver, the variability in thickness responses at different sites on different livers is high. Unless a large number of observations are made, the results will be unreliable.


This article has been cited by other articles:


Home page
 J. Appl. Physiol.Home page
C. F. Rothe
Point-Counterpoint: Active venoconstriction is/is not important in maintaining or raising end-diastolic volume and stroke volume during exercise and orthostasis
J Appl Physiol, October 1, 2006; 101(4): 1262 - 1264.
[Abstract] [Full Text] [PDF]

Home page
 Am. J. Physiol. Heart Circ. Physiol.Home page
C. F. Rothe and R. Maass-Moreno
Active and passive liver microvascular responses from angiotensin, endothelin, norepinephrine, and vasopressin
Am J Physiol Heart Circ Physiol, September 1, 2000; 279(3): H1147 - H1156.
[Abstract] [Full Text] [PDF]

Home page
 Am. J. Physiol. Heart Circ. Physiol.Home page
C. F. Rothe and R. Maass-Moreno
Hepatic venular resistance responses to norepinephrine, isoproterenol, adenosine, histamine, and ACh in rabbits
Am J Physiol Heart Circ Physiol, March 1, 1998; 274(3): H777 - H785.
[Abstract] [Full Text] [PDF]

Home page
 CirculationHome page
H. Kjekshus, C. Risoe, T. Scholz, and O. A. Smiseth
Regulation of Hepatic Vascular Volume : Contributions From Active and Passive Mechanisms During Catecholamine and Sodium Nitroprusside Infusion
Circulation, December 16, 1997; 96(12): 4415 - 4423.
[Abstract] [Full Text]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Visit Other APS Journals Online