Pressure measurements in the mammalian microvasculature
The servo nulling system for measuring pressures in the microvasculature system described by Wiederhielm was redesigned and utilized to measure pressures in the mammalian mesentric circulation, the hamster cheek pouch, and the rat cremaster muscle. A systems analysis of the components shows that dir...
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| Veröffentlicht in: | Microvascular research 1970-04, Vol.2 (2), p.212-220 |
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| container_title | Microvascular research |
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| creator | Intaglietta, M. Pawula, R.F. Tompkins, W.R. |
| description | The servo nulling system for measuring pressures in the microvasculature system described by Wiederhielm was redesigned and utilized to measure pressures in the mammalian mesentric circulation, the hamster cheek pouch, and the rat cremaster muscle. A systems analysis of the components shows that direct-pressure measurements of suitable fidelity can be made with conventional transducers through microcannulas down to 10–15 μ diameter, and that for smaller diameters active systems are required. The system developed operates with a 25-Hz frequency response in the presence of routine electrical noise. Results obtained show that pressures in arterioles and venules in the mammalian mesenteric circulation are greater than the plasma colloidal osmotic pressure, while in corresponding vessels in muscle, venular pressures are lower than the colloidal osmotic pressure. |
| doi_str_mv | 10.1016/0026-2862(70)90009-9 |
| format | Article |
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A systems analysis of the components shows that direct-pressure measurements of suitable fidelity can be made with conventional transducers through microcannulas down to 10–15 μ diameter, and that for smaller diameters active systems are required. The system developed operates with a 25-Hz frequency response in the presence of routine electrical noise. Results obtained show that pressures in arterioles and venules in the mammalian mesenteric circulation are greater than the plasma colloidal osmotic pressure, while in corresponding vessels in muscle, venular pressures are lower than the colloidal osmotic pressure.</description><identifier>ISSN: 0026-2862</identifier><identifier>EISSN: 1095-9319</identifier><identifier>DOI: 10.1016/0026-2862(70)90009-9</identifier><identifier>PMID: 5523924</identifier><language>eng</language><publisher>United States: Elsevier Inc</publisher><subject>Animals ; Blood Pressure Determination ; Catheterization ; Cats ; Cheek - blood supply ; Cricetinae ; Dogs ; Electronics ; Mesentery - blood supply ; Methods ; Microcirculation ; Muscles - blood supply ; Omentum - blood supply ; Rabbits ; Rats ; Transducers</subject><ispartof>Microvascular research, 1970-04, Vol.2 (2), p.212-220</ispartof><rights>1970</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c272t-6360260967d188108a5ab076290eb6aa15146e93b0110c0dfa6cfaae9e20aa713</citedby><cites>FETCH-LOGICAL-c272t-6360260967d188108a5ab076290eb6aa15146e93b0110c0dfa6cfaae9e20aa713</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/0026-2862(70)90009-9$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/5523924$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Intaglietta, M.</creatorcontrib><creatorcontrib>Pawula, R.F.</creatorcontrib><creatorcontrib>Tompkins, W.R.</creatorcontrib><title>Pressure measurements in the mammalian microvasculature</title><title>Microvascular research</title><addtitle>Microvasc Res</addtitle><description>The servo nulling system for measuring pressures in the microvasculature system described by Wiederhielm was redesigned and utilized to measure pressures in the mammalian mesentric circulation, the hamster cheek pouch, and the rat cremaster muscle. A systems analysis of the components shows that direct-pressure measurements of suitable fidelity can be made with conventional transducers through microcannulas down to 10–15 μ diameter, and that for smaller diameters active systems are required. The system developed operates with a 25-Hz frequency response in the presence of routine electrical noise. Results obtained show that pressures in arterioles and venules in the mammalian mesenteric circulation are greater than the plasma colloidal osmotic pressure, while in corresponding vessels in muscle, venular pressures are lower than the colloidal osmotic pressure.</description><subject>Animals</subject><subject>Blood Pressure Determination</subject><subject>Catheterization</subject><subject>Cats</subject><subject>Cheek - blood supply</subject><subject>Cricetinae</subject><subject>Dogs</subject><subject>Electronics</subject><subject>Mesentery - blood supply</subject><subject>Methods</subject><subject>Microcirculation</subject><subject>Muscles - blood supply</subject><subject>Omentum - blood supply</subject><subject>Rabbits</subject><subject>Rats</subject><subject>Transducers</subject><issn>0026-2862</issn><issn>1095-9319</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1970</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp9kE9LxDAQxYMo67r6DRR6Ej1UJ-k2bS6CLP6DBT3oOUzTKUaa7pq0C357U3fZo6eBmfdm3vwYO-dww4HLWwAhU1FKcVXAtQIAlaoDNuWg8lRlXB2y6V5yzE5C-ALgPFdiwiZ5LjIl5lNWvHkKYfCUOMKxOur6kNgu6T9jD53D1mKXOGv8aoPBDC32UXbKjhpsA53t6ox9PD68L57T5evTy-J-mRpRiD6VmYwRQMmi5mXJocQcKyikUECVROQ5n0tSWRWTgYG6QWkaRFIkALHg2Yxdbveu_ep7oNBrZ4OhtsWOVkPQJZQqV7yIwvlWGHOG4KnRa28d-h_NQY-89AhDjzB0AfqPl1bRdrHbP1SO6r1pByjO77Zzik9uLHkdjKXOUG09mV7XK_v_gV_zZ3kS</recordid><startdate>197004</startdate><enddate>197004</enddate><creator>Intaglietta, M.</creator><creator>Pawula, R.F.</creator><creator>Tompkins, W.R.</creator><general>Elsevier Inc</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>197004</creationdate><title>Pressure measurements in the mammalian microvasculature</title><author>Intaglietta, M. ; Pawula, R.F. ; Tompkins, W.R.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c272t-6360260967d188108a5ab076290eb6aa15146e93b0110c0dfa6cfaae9e20aa713</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1970</creationdate><topic>Animals</topic><topic>Blood Pressure Determination</topic><topic>Catheterization</topic><topic>Cats</topic><topic>Cheek - blood supply</topic><topic>Cricetinae</topic><topic>Dogs</topic><topic>Electronics</topic><topic>Mesentery - blood supply</topic><topic>Methods</topic><topic>Microcirculation</topic><topic>Muscles - blood supply</topic><topic>Omentum - blood supply</topic><topic>Rabbits</topic><topic>Rats</topic><topic>Transducers</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Intaglietta, M.</creatorcontrib><creatorcontrib>Pawula, R.F.</creatorcontrib><creatorcontrib>Tompkins, W.R.</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Microvascular research</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Intaglietta, M.</au><au>Pawula, R.F.</au><au>Tompkins, W.R.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Pressure measurements in the mammalian microvasculature</atitle><jtitle>Microvascular research</jtitle><addtitle>Microvasc Res</addtitle><date>1970-04</date><risdate>1970</risdate><volume>2</volume><issue>2</issue><spage>212</spage><epage>220</epage><pages>212-220</pages><issn>0026-2862</issn><eissn>1095-9319</eissn><abstract>The servo nulling system for measuring pressures in the microvasculature system described by Wiederhielm was redesigned and utilized to measure pressures in the mammalian mesentric circulation, the hamster cheek pouch, and the rat cremaster muscle. A systems analysis of the components shows that direct-pressure measurements of suitable fidelity can be made with conventional transducers through microcannulas down to 10–15 μ diameter, and that for smaller diameters active systems are required. The system developed operates with a 25-Hz frequency response in the presence of routine electrical noise. Results obtained show that pressures in arterioles and venules in the mammalian mesenteric circulation are greater than the plasma colloidal osmotic pressure, while in corresponding vessels in muscle, venular pressures are lower than the colloidal osmotic pressure.</abstract><cop>United States</cop><pub>Elsevier Inc</pub><pmid>5523924</pmid><doi>10.1016/0026-2862(70)90009-9</doi><tpages>9</tpages></addata></record> |
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| ispartof | Microvascular research, 1970-04, Vol.2 (2), p.212-220 |
| issn | 0026-2862 1095-9319 |
| language | eng |
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| source | MEDLINE; Elsevier ScienceDirect Journals Complete |
| subjects | Animals Blood Pressure Determination Catheterization Cats Cheek - blood supply Cricetinae Dogs Electronics Mesentery - blood supply Methods Microcirculation Muscles - blood supply Omentum - blood supply Rabbits Rats Transducers |
| title | Pressure measurements in the mammalian microvasculature |
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