Novel laser system and laser irradiation method reduced the risk of carbonization during laser interstitial thermotherapy: Assessed by MR temperature measurement
Background and Objective: To establish laser interstitial thermotherapy (LITT) for intracranial tumors, the authors investigated a method to regulate localized temperature generated by interstitial laser irradiation using magnetic resonance (MR) temperature mapping. Study Design/Materials and Method...
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| Veröffentlicht in: | Lasers in surgery and medicine 2001-01, Vol.29 (2), p.108-117 |
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| container_title | Lasers in surgery and medicine |
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| creator | Atsumi, Hideki Matsumae, Mitsunori Kaneda, Michihiro Muro, Isao Mamata, Yoshiaki Komiya, Taizo Tsugu, Atsushi Tsugane, Ryuichi |
| description | Background and Objective:
To establish laser interstitial thermotherapy (LITT) for intracranial tumors, the authors investigated a method to regulate localized temperature generated by interstitial laser irradiation using magnetic resonance (MR) temperature mapping.
Study Design/Materials and Methods:
A diode laser system and six different types of optical‐fiber system were developed for LITT. The characteristics of temperature profiles produced by each laser‐fiber system were investigated with MR temperature measurement (the water proton chemical technique), and differences in the temperature profile induced by two laser‐irradiation methods (continuous and intermittent) were observed.
Results:
All fiber systems with the exception of the diffuse‐projection fiber system, created a spherical temperature profile. Carbonization sometimes occurred around the bare‐end fiber tip upon high power laser irradiation. The diffuse‐projection fiber system produced a cylindrical temperature distribution, and the temperature profile showed a more gradual temperature elevation than the bare‐end fiber. No carbonization occurred at the tip of the diffuse‐projection fiber system. In addition, the utilization of the intermittent irradiation method also increased temperature gradually. Fiber‐system modification and intermittent irradiation reduced laser‐beam intensity and the risk of carbonization.
Conclusion:
The use of a diffuse‐projection fiber system which intermittently transmits a reduced intensity laser beam is an effective tool to regulate temperature during LITT using MR temperature measurement. Lasers Surg. Med. 29:108–117, 2001. © 2001 Wiley‐Liss, Inc. |
| doi_str_mv | 10.1002/lsm.1096 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_71190457</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>71190457</sourcerecordid><originalsourceid>FETCH-LOGICAL-c3856-3c5f3c7d14f8f5da983ab6635044182e23255b2bd6f6a148b42888b6778ccfc43</originalsourceid><addsrcrecordid>eNp1kVFv1SAcxYnRuOs08RMYXjR7qUIphfq2LG7T3M1kakx8IRSow7Xljj9V67fxm0pzq3syIfxP4Mc5CQehp5S8pISUr3oYsmjqe2izjKKhhN5HG0KzlqQpD9AjgG-EEFYS8RAdUMo5k43YoN-X4bvrca_BRQwzJDdgPdr1wMeordfJhxEPLl0Hi6Ozk3EWp2uHo4cbHDpsdGzD6H_tQTtFP3796zAmFyH55HW_vIlDWHa9m1_jYwCXl8XtjC-ucI7e5Zs0RZfDNOQ5uDE9Rg863YN7ss5D9On0zceT82L7_uztyfG2MEzyumCGd8wIS6tOdtzqRjLd1jXjpKqoLF3JSs7bsrV1V2taybYqpZRtLYQ0pjMVO0Qv9r67GG4nB0kNHozrez26MIESlDak4iKDR3vQxAAQXad20Q86zooStdShch1q6SGjz1bPqR2cvQPX_8_A8xXQYHTfRT0aD3dcRXjDRJO5Ys_98L2b_xuoth8u1uCV97nRn_94HW9ULZjg6vPlmbpi59X2HfuSxR_Po7QC</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>71190457</pqid></control><display><type>article</type><title>Novel laser system and laser irradiation method reduced the risk of carbonization during laser interstitial thermotherapy: Assessed by MR temperature measurement</title><source>MEDLINE</source><source>Wiley Online Library Journals Frontfile Complete</source><creator>Atsumi, Hideki ; Matsumae, Mitsunori ; Kaneda, Michihiro ; Muro, Isao ; Mamata, Yoshiaki ; Komiya, Taizo ; Tsugu, Atsushi ; Tsugane, Ryuichi</creator><creatorcontrib>Atsumi, Hideki ; Matsumae, Mitsunori ; Kaneda, Michihiro ; Muro, Isao ; Mamata, Yoshiaki ; Komiya, Taizo ; Tsugu, Atsushi ; Tsugane, Ryuichi</creatorcontrib><description>Background and Objective:
To establish laser interstitial thermotherapy (LITT) for intracranial tumors, the authors investigated a method to regulate localized temperature generated by interstitial laser irradiation using magnetic resonance (MR) temperature mapping.
Study Design/Materials and Methods:
A diode laser system and six different types of optical‐fiber system were developed for LITT. The characteristics of temperature profiles produced by each laser‐fiber system were investigated with MR temperature measurement (the water proton chemical technique), and differences in the temperature profile induced by two laser‐irradiation methods (continuous and intermittent) were observed.
Results:
All fiber systems with the exception of the diffuse‐projection fiber system, created a spherical temperature profile. Carbonization sometimes occurred around the bare‐end fiber tip upon high power laser irradiation. The diffuse‐projection fiber system produced a cylindrical temperature distribution, and the temperature profile showed a more gradual temperature elevation than the bare‐end fiber. No carbonization occurred at the tip of the diffuse‐projection fiber system. In addition, the utilization of the intermittent irradiation method also increased temperature gradually. Fiber‐system modification and intermittent irradiation reduced laser‐beam intensity and the risk of carbonization.
Conclusion:
The use of a diffuse‐projection fiber system which intermittently transmits a reduced intensity laser beam is an effective tool to regulate temperature during LITT using MR temperature measurement. Lasers Surg. Med. 29:108–117, 2001. © 2001 Wiley‐Liss, Inc.</description><identifier>ISSN: 0196-8092</identifier><identifier>EISSN: 1096-9101</identifier><identifier>DOI: 10.1002/lsm.1096</identifier><identifier>PMID: 11553897</identifier><identifier>CODEN: LSMEDI</identifier><language>eng</language><publisher>New York: John Wiley & Sons, Inc</publisher><subject>Animals ; Biological and medical sciences ; Brain - pathology ; carbonization ; Chickens ; Diseases of the nervous system ; Hyperthermia, Induced ; laser-fiber system ; laser-interstitial thermotherapy ; Lasers ; Magnetic Resonance Imaging ; Medical sciences ; Muscle, Skeletal ; Rabbits ; Radiotherapy. Instrumental treatment. Physiotherapy. Reeducation. Rehabilitation, orthophony, crenotherapy. Diet therapy and various other treatments (general aspects) ; Temperature ; temperature measurement</subject><ispartof>Lasers in surgery and medicine, 2001-01, Vol.29 (2), p.108-117</ispartof><rights>Copyright © 2001 Wiley‐Liss, Inc.</rights><rights>2002 INIST-CNRS</rights><rights>Copyright 2001 Wiley-Liss, Inc.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c3856-3c5f3c7d14f8f5da983ab6635044182e23255b2bd6f6a148b42888b6778ccfc43</citedby><cites>FETCH-LOGICAL-c3856-3c5f3c7d14f8f5da983ab6635044182e23255b2bd6f6a148b42888b6778ccfc43</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1002%2Flsm.1096$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2Flsm.1096$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,776,780,1411,27901,27902,45550,45551</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=14059379$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/11553897$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Atsumi, Hideki</creatorcontrib><creatorcontrib>Matsumae, Mitsunori</creatorcontrib><creatorcontrib>Kaneda, Michihiro</creatorcontrib><creatorcontrib>Muro, Isao</creatorcontrib><creatorcontrib>Mamata, Yoshiaki</creatorcontrib><creatorcontrib>Komiya, Taizo</creatorcontrib><creatorcontrib>Tsugu, Atsushi</creatorcontrib><creatorcontrib>Tsugane, Ryuichi</creatorcontrib><title>Novel laser system and laser irradiation method reduced the risk of carbonization during laser interstitial thermotherapy: Assessed by MR temperature measurement</title><title>Lasers in surgery and medicine</title><addtitle>Lasers Surg. Med</addtitle><description>Background and Objective:
To establish laser interstitial thermotherapy (LITT) for intracranial tumors, the authors investigated a method to regulate localized temperature generated by interstitial laser irradiation using magnetic resonance (MR) temperature mapping.
Study Design/Materials and Methods:
A diode laser system and six different types of optical‐fiber system were developed for LITT. The characteristics of temperature profiles produced by each laser‐fiber system were investigated with MR temperature measurement (the water proton chemical technique), and differences in the temperature profile induced by two laser‐irradiation methods (continuous and intermittent) were observed.
Results:
All fiber systems with the exception of the diffuse‐projection fiber system, created a spherical temperature profile. Carbonization sometimes occurred around the bare‐end fiber tip upon high power laser irradiation. The diffuse‐projection fiber system produced a cylindrical temperature distribution, and the temperature profile showed a more gradual temperature elevation than the bare‐end fiber. No carbonization occurred at the tip of the diffuse‐projection fiber system. In addition, the utilization of the intermittent irradiation method also increased temperature gradually. Fiber‐system modification and intermittent irradiation reduced laser‐beam intensity and the risk of carbonization.
Conclusion:
The use of a diffuse‐projection fiber system which intermittently transmits a reduced intensity laser beam is an effective tool to regulate temperature during LITT using MR temperature measurement. Lasers Surg. Med. 29:108–117, 2001. © 2001 Wiley‐Liss, Inc.</description><subject>Animals</subject><subject>Biological and medical sciences</subject><subject>Brain - pathology</subject><subject>carbonization</subject><subject>Chickens</subject><subject>Diseases of the nervous system</subject><subject>Hyperthermia, Induced</subject><subject>laser-fiber system</subject><subject>laser-interstitial thermotherapy</subject><subject>Lasers</subject><subject>Magnetic Resonance Imaging</subject><subject>Medical sciences</subject><subject>Muscle, Skeletal</subject><subject>Rabbits</subject><subject>Radiotherapy. Instrumental treatment. Physiotherapy. Reeducation. Rehabilitation, orthophony, crenotherapy. Diet therapy and various other treatments (general aspects)</subject><subject>Temperature</subject><subject>temperature measurement</subject><issn>0196-8092</issn><issn>1096-9101</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2001</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp1kVFv1SAcxYnRuOs08RMYXjR7qUIphfq2LG7T3M1kakx8IRSow7Xljj9V67fxm0pzq3syIfxP4Mc5CQehp5S8pISUr3oYsmjqe2izjKKhhN5HG0KzlqQpD9AjgG-EEFYS8RAdUMo5k43YoN-X4bvrca_BRQwzJDdgPdr1wMeordfJhxEPLl0Hi6Ozk3EWp2uHo4cbHDpsdGzD6H_tQTtFP3796zAmFyH55HW_vIlDWHa9m1_jYwCXl8XtjC-ucI7e5Zs0RZfDNOQ5uDE9Rg863YN7ss5D9On0zceT82L7_uztyfG2MEzyumCGd8wIS6tOdtzqRjLd1jXjpKqoLF3JSs7bsrV1V2taybYqpZRtLYQ0pjMVO0Qv9r67GG4nB0kNHozrez26MIESlDak4iKDR3vQxAAQXad20Q86zooStdShch1q6SGjz1bPqR2cvQPX_8_A8xXQYHTfRT0aD3dcRXjDRJO5Ys_98L2b_xuoth8u1uCV97nRn_94HW9ULZjg6vPlmbpi59X2HfuSxR_Po7QC</recordid><startdate>20010101</startdate><enddate>20010101</enddate><creator>Atsumi, Hideki</creator><creator>Matsumae, Mitsunori</creator><creator>Kaneda, Michihiro</creator><creator>Muro, Isao</creator><creator>Mamata, Yoshiaki</creator><creator>Komiya, Taizo</creator><creator>Tsugu, Atsushi</creator><creator>Tsugane, Ryuichi</creator><general>John Wiley & Sons, Inc</general><general>Wiley-Liss</general><scope>BSCLL</scope><scope>IQODW</scope><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>20010101</creationdate><title>Novel laser system and laser irradiation method reduced the risk of carbonization during laser interstitial thermotherapy: Assessed by MR temperature measurement</title><author>Atsumi, Hideki ; Matsumae, Mitsunori ; Kaneda, Michihiro ; Muro, Isao ; Mamata, Yoshiaki ; Komiya, Taizo ; Tsugu, Atsushi ; Tsugane, Ryuichi</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c3856-3c5f3c7d14f8f5da983ab6635044182e23255b2bd6f6a148b42888b6778ccfc43</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2001</creationdate><topic>Animals</topic><topic>Biological and medical sciences</topic><topic>Brain - pathology</topic><topic>carbonization</topic><topic>Chickens</topic><topic>Diseases of the nervous system</topic><topic>Hyperthermia, Induced</topic><topic>laser-fiber system</topic><topic>laser-interstitial thermotherapy</topic><topic>Lasers</topic><topic>Magnetic Resonance Imaging</topic><topic>Medical sciences</topic><topic>Muscle, Skeletal</topic><topic>Rabbits</topic><topic>Radiotherapy. Instrumental treatment. Physiotherapy. Reeducation. Rehabilitation, orthophony, crenotherapy. Diet therapy and various other treatments (general aspects)</topic><topic>Temperature</topic><topic>temperature measurement</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Atsumi, Hideki</creatorcontrib><creatorcontrib>Matsumae, Mitsunori</creatorcontrib><creatorcontrib>Kaneda, Michihiro</creatorcontrib><creatorcontrib>Muro, Isao</creatorcontrib><creatorcontrib>Mamata, Yoshiaki</creatorcontrib><creatorcontrib>Komiya, Taizo</creatorcontrib><creatorcontrib>Tsugu, Atsushi</creatorcontrib><creatorcontrib>Tsugane, Ryuichi</creatorcontrib><collection>Istex</collection><collection>Pascal-Francis</collection><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>Lasers in surgery and medicine</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Atsumi, Hideki</au><au>Matsumae, Mitsunori</au><au>Kaneda, Michihiro</au><au>Muro, Isao</au><au>Mamata, Yoshiaki</au><au>Komiya, Taizo</au><au>Tsugu, Atsushi</au><au>Tsugane, Ryuichi</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Novel laser system and laser irradiation method reduced the risk of carbonization during laser interstitial thermotherapy: Assessed by MR temperature measurement</atitle><jtitle>Lasers in surgery and medicine</jtitle><addtitle>Lasers Surg. Med</addtitle><date>2001-01-01</date><risdate>2001</risdate><volume>29</volume><issue>2</issue><spage>108</spage><epage>117</epage><pages>108-117</pages><issn>0196-8092</issn><eissn>1096-9101</eissn><coden>LSMEDI</coden><abstract>Background and Objective:
To establish laser interstitial thermotherapy (LITT) for intracranial tumors, the authors investigated a method to regulate localized temperature generated by interstitial laser irradiation using magnetic resonance (MR) temperature mapping.
Study Design/Materials and Methods:
A diode laser system and six different types of optical‐fiber system were developed for LITT. The characteristics of temperature profiles produced by each laser‐fiber system were investigated with MR temperature measurement (the water proton chemical technique), and differences in the temperature profile induced by two laser‐irradiation methods (continuous and intermittent) were observed.
Results:
All fiber systems with the exception of the diffuse‐projection fiber system, created a spherical temperature profile. Carbonization sometimes occurred around the bare‐end fiber tip upon high power laser irradiation. The diffuse‐projection fiber system produced a cylindrical temperature distribution, and the temperature profile showed a more gradual temperature elevation than the bare‐end fiber. No carbonization occurred at the tip of the diffuse‐projection fiber system. In addition, the utilization of the intermittent irradiation method also increased temperature gradually. Fiber‐system modification and intermittent irradiation reduced laser‐beam intensity and the risk of carbonization.
Conclusion:
The use of a diffuse‐projection fiber system which intermittently transmits a reduced intensity laser beam is an effective tool to regulate temperature during LITT using MR temperature measurement. Lasers Surg. Med. 29:108–117, 2001. © 2001 Wiley‐Liss, Inc.</abstract><cop>New York</cop><pub>John Wiley & Sons, Inc</pub><pmid>11553897</pmid><doi>10.1002/lsm.1096</doi><tpages>10</tpages></addata></record> |
| fulltext | fulltext |
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| ispartof | Lasers in surgery and medicine, 2001-01, Vol.29 (2), p.108-117 |
| issn | 0196-8092 1096-9101 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_71190457 |
| source | MEDLINE; Wiley Online Library Journals Frontfile Complete |
| subjects | Animals Biological and medical sciences Brain - pathology carbonization Chickens Diseases of the nervous system Hyperthermia, Induced laser-fiber system laser-interstitial thermotherapy Lasers Magnetic Resonance Imaging Medical sciences Muscle, Skeletal Rabbits Radiotherapy. Instrumental treatment. Physiotherapy. Reeducation. Rehabilitation, orthophony, crenotherapy. Diet therapy and various other treatments (general aspects) Temperature temperature measurement |
| title | Novel laser system and laser irradiation method reduced the risk of carbonization during laser interstitial thermotherapy: Assessed by MR temperature measurement |
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