Measurement of blood flow using temperature decay: Effect of thermal conduction
Within the framework of the bioheat equation, we studied the effect of conduction on the thermal washout curve for a model tissue configuration subjected to a thermal perturbation such as hyperthermia treatment. In particular, we studied the implications of the assumption made by many investigators...
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| Veröffentlicht in: | International journal of radiation oncology, biology, physics biology, physics, 1986-03, Vol.12 (3), p.373-378 |
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| container_end_page | 378 |
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| container_issue | 3 |
| container_start_page | 373 |
| container_title | International journal of radiation oncology, biology, physics |
| container_volume | 12 |
| creator | Sandhu, Taljit S. |
| description | Within the framework of the bioheat equation, we studied the effect of conduction on the thermal washout curve for a model tissue configuration subjected to a thermal perturbation such as hyperthermia treatment. In particular, we studied the implications of the assumption made by many investigators to neglect the effect of thermal conduction while analyzing the temperature decay curve for measuring blood perfusion. The present analysis suggests that during the localized hyperthermia treatments, this assumption can lead to inaccurate values for the blood perfusion parameter. This is particularly so under non-steady state conditions when the temperature distribution is changing. In addition to the value of blood flow, the shape of the temperature decay curve depends on the temperature distribution at the start of temperature decay. |
| doi_str_mv | 10.1016/0360-3016(86)90353-6 |
| format | Article |
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In particular, we studied the implications of the assumption made by many investigators to neglect the effect of thermal conduction while analyzing the temperature decay curve for measuring blood perfusion. The present analysis suggests that during the localized hyperthermia treatments, this assumption can lead to inaccurate values for the blood perfusion parameter. This is particularly so under non-steady state conditions when the temperature distribution is changing. In addition to the value of blood flow, the shape of the temperature decay curve depends on the temperature distribution at the start of temperature decay.</description><identifier>ISSN: 0360-3016</identifier><identifier>EISSN: 1879-355X</identifier><identifier>DOI: 10.1016/0360-3016(86)90353-6</identifier><identifier>PMID: 3957736</identifier><identifier>CODEN: IOBPD3</identifier><language>eng</language><publisher>New York, NY: Elsevier Inc</publisher><subject>Biological and medical sciences ; Blood flow ; Blood Flow Velocity ; Humans ; Hyperthermia ; Hyperthermia, Induced ; Induced hyperthermia. Cryotherapy ; Mathematics ; Medical sciences ; Models, Biological ; Neoplasms - physiopathology ; Neoplasms - therapy ; Thermal conduction ; Thermal Conductivity ; Treatment with physical agents ; Treatment. 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In particular, we studied the implications of the assumption made by many investigators to neglect the effect of thermal conduction while analyzing the temperature decay curve for measuring blood perfusion. The present analysis suggests that during the localized hyperthermia treatments, this assumption can lead to inaccurate values for the blood perfusion parameter. This is particularly so under non-steady state conditions when the temperature distribution is changing. In addition to the value of blood flow, the shape of the temperature decay curve depends on the temperature distribution at the start of temperature decay.</description><subject>Biological and medical sciences</subject><subject>Blood flow</subject><subject>Blood Flow Velocity</subject><subject>Humans</subject><subject>Hyperthermia</subject><subject>Hyperthermia, Induced</subject><subject>Induced hyperthermia. Cryotherapy</subject><subject>Mathematics</subject><subject>Medical sciences</subject><subject>Models, Biological</subject><subject>Neoplasms - physiopathology</subject><subject>Neoplasms - therapy</subject><subject>Thermal conduction</subject><subject>Thermal Conductivity</subject><subject>Treatment with physical agents</subject><subject>Treatment. 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Cryotherapy</topic><topic>Mathematics</topic><topic>Medical sciences</topic><topic>Models, Biological</topic><topic>Neoplasms - physiopathology</topic><topic>Neoplasms - therapy</topic><topic>Thermal conduction</topic><topic>Thermal Conductivity</topic><topic>Treatment with physical agents</topic><topic>Treatment. 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| identifier | ISSN: 0360-3016 |
| ispartof | International journal of radiation oncology, biology, physics, 1986-03, Vol.12 (3), p.373-378 |
| issn | 0360-3016 1879-355X |
| language | eng |
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| source | MEDLINE; Elsevier ScienceDirect Journals |
| subjects | Biological and medical sciences Blood flow Blood Flow Velocity Humans Hyperthermia Hyperthermia, Induced Induced hyperthermia. Cryotherapy Mathematics Medical sciences Models, Biological Neoplasms - physiopathology Neoplasms - therapy Thermal conduction Thermal Conductivity Treatment with physical agents Treatment. General aspects Tumors |
| title | Measurement of blood flow using temperature decay: Effect of thermal conduction |
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