| In vitro analysis of thermal transport in coronary sinus thermodilution catheters. | |
| | |
MedLine Citation:
|
PMID: 6685599 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
The continuous thermodilution technique for measuring blood flow in the range 50-300 ml/min was evaluated in vitro. Experiments indicated that thermotransport within the catheter from the indicator line to the mixing thermistor exists. The resulting error in calculated thermodilution flow will increase with increasing flow rate. A correction factor for thermal transport, Ft, obtained from a blood circulation model was incorporated in a modified formula for calculation of thermodilution flow. Flows derived with the standard Ganz formula were significantly lower than timed volumetric flows, whereas flows obtained with the modified formula agreed with volumetric flow. The coefficient of variation for four consecutive measurements was 3.4%. |
| | |
Authors:
|
E Bålfors; S Häggmark; S Ariola; B Biber; J Pontèn; S Reiz |
Related Documents
:
|
2306389 - Dialyzer urea and creatinine clearances are not significantly altered in erythropoietin... 10525919 - A method to overcome the inability to draw blood from central venous lines in children. 9821529 - Hyperbaric oxygenation, plasma exchange, and hemodialysis for treatment of acute liver ... 614389 - Hemodialyzer performance: an assessment of currently available units. 19379349 - Fallacies of high-speed hemodialysis. 18408289 - Post-dialysis solutes rebound: comparison of two protocols for hemodialysis. 14521169 - Beta2-microglobulin clearance with super high flux hemodialysis: an ex vivo study. 3906059 - The relationship between blood ordered and blood administered in orthognathic surgery: ... 11937589 - Mapping of local renal blood flow with pet and h(2)(15)o. |
Publication Detail:
|
Type: Comparative Study; Journal Article |
Journal Detail:
|
Title: Clinical physiology (Oxford, England) Volume: 3 ISSN: 0144-5979 ISO Abbreviation: Clin Physiol Publication Date: 1983 Oct |
Date Detail:
|
Created Date: 1984-01-07 Completed Date: 1984-01-07 Revised Date: 2006-11-15 |
Medline Journal Info:
|
Nlm Unique ID: 8309768 Medline TA: Clin Physiol Country: ENGLAND |
Other Details:
|
Languages: eng Pagination: 469-76 Citation Subset: IM |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Blood Flow Velocity Coronary Circulation Heart Catheterization Humans Mathematics Models, Cardiovascular* Thermal Conductivity Thermodilution / methods* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Human myocardial and skeletal muscle enzyme activities: creatine kinase and its isozyme MB as relate...
Next Document: NADH and NADPH in human skeletal muscle at rest and during ischaemia.