4π Non-Coplanar Liver SBRT: A Novel Delivery Technique
Purpose To improve the quality of liver stereotactic body radiation therapy (SBRT) treatments, a novel 4π framework was developed with accompanying algorithms to optimize non-coplanar beam orientations and fluences. The dose optimization is performed on a patient-specific deliverable beam geometry s...
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| Veröffentlicht in: | International journal of radiation oncology, biology, physics biology, physics, 2013-04, Vol.85 (5), p.1360-1366 |
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| container_title | International journal of radiation oncology, biology, physics |
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| creator | Dong, Peng, PhD Lee, Percy, MD Ruan, Dan, PhD Long, Troy, BS Romeijn, Edwin, PhD Yang, Yingli, PhD Low, Daniel, PhD Kupelian, Patrick, MD Sheng, Ke, PhD |
| description | Purpose To improve the quality of liver stereotactic body radiation therapy (SBRT) treatments, a novel 4π framework was developed with accompanying algorithms to optimize non-coplanar beam orientations and fluences. The dose optimization is performed on a patient-specific deliverable beam geometry solution space, parameterized with patient and linear accelerator gantry orientations. Methods and Materials Beams causing collision between the gantry and the couch or patient were eliminated by simulating all beam orientations using a precise computer assisted design model of the linear accelerator and a human subject. Integrated beam orientation and fluence map optimizations were performed on remaining beams using a greedy column generation method. Testing of the new method was performed on 10 liver SBRT cases previously treated with 50 to 60 Gy in 5 fractions using volumetric modulated arc therapy (VMAT). For each patient, both 14 and 22 non-coplanar fields were selected and optimized to meet the objective of ≥95% of the planning target volume (PTV) covered by 100% of the prescription dose. Doses to organs at risk, normal liver volumes receiving |
| doi_str_mv | 10.1016/j.ijrobp.2012.09.028 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_osti_</sourceid><recordid>TN_cdi_osti_scitechconnect_22224433</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><els_id>1_s2_0_S036030161203636X</els_id><sourcerecordid>1319184248</sourcerecordid><originalsourceid>FETCH-LOGICAL-c411t-b1593b0d56eaeb777d7cd6e9f415c52c1c706c7e8017e878c3eeec8d0bc117873</originalsourceid><addsrcrecordid>eNqFkc-O0zAQxi0EYsvCGyAUiQuXBE_sxAkHpKX8lSqQ2CLtzUomU-GQxl07rdQbb8grMVEWDlzwwR7Zv5n5_I0QT0FmIKF82WeuD749ZLmEPJN1JvPqnlhBZepUFcXNfbGSqpSpYvhCPIqxl1ICGP1QXOQKCi1NuRJG__qZfPZjuvaHoRmbkGzciUJy_ebr9lVyxU8nGpK3NMy352RL-H10t0d6LB7smiHSk7vzUnx7_267_phuvnz4tL7apKgBprSFolat7IqSGmqNMZ3BrqR6p6HAIkdAI0s0VEngzVSoiAirTrbIUiujLsXzpa6Pk7MR3cQK0I8j4WRzXlorxdSLhToEz-LiZPcuIg38I_LHaEFBDZXOdcWoXlAMPsZAO3sIbt-EswVpZ2Ntbxdj7WyslbVlYznt2V2HY7un7m_SHycZeL0AxG6cHIVZLI1InQuz1s67_3X4twAObnTYDD_oTLH3xzCy0xZs5Bx7PQ93ni3kHKnyRv0GYxCd6g</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>1319184248</pqid></control><display><type>article</type><title>4π Non-Coplanar Liver SBRT: A Novel Delivery Technique</title><source>MEDLINE</source><source>Elsevier ScienceDirect Journals Complete</source><creator>Dong, Peng, PhD ; Lee, Percy, MD ; Ruan, Dan, PhD ; Long, Troy, BS ; Romeijn, Edwin, PhD ; Yang, Yingli, PhD ; Low, Daniel, PhD ; Kupelian, Patrick, MD ; Sheng, Ke, PhD</creator><creatorcontrib>Dong, Peng, PhD ; Lee, Percy, MD ; Ruan, Dan, PhD ; Long, Troy, BS ; Romeijn, Edwin, PhD ; Yang, Yingli, PhD ; Low, Daniel, PhD ; Kupelian, Patrick, MD ; Sheng, Ke, PhD</creatorcontrib><description>Purpose To improve the quality of liver stereotactic body radiation therapy (SBRT) treatments, a novel 4π framework was developed with accompanying algorithms to optimize non-coplanar beam orientations and fluences. The dose optimization is performed on a patient-specific deliverable beam geometry solution space, parameterized with patient and linear accelerator gantry orientations. Methods and Materials Beams causing collision between the gantry and the couch or patient were eliminated by simulating all beam orientations using a precise computer assisted design model of the linear accelerator and a human subject. Integrated beam orientation and fluence map optimizations were performed on remaining beams using a greedy column generation method. Testing of the new method was performed on 10 liver SBRT cases previously treated with 50 to 60 Gy in 5 fractions using volumetric modulated arc therapy (VMAT). For each patient, both 14 and 22 non-coplanar fields were selected and optimized to meet the objective of ≥95% of the planning target volume (PTV) covered by 100% of the prescription dose. Doses to organs at risk, normal liver volumes receiving <15 Gy, integral dose, and 50% dose spillage volumes were compared against the delivered clinical VMAT plans. Results Compared with the VMAT plans, the 4π plans yielded reduced 50% dose spillage volume and integral dose by 22% (range 10%-40%) and 19% (range 13%-26%), respectively. The mean normal liver volume receiving < 15 Gy was increased by 51 cc (range 21-107 cc) with a 31% reduction of the mean normal liver dose. Mean doses to the left kidney and right kidney and maximum doses to the stomach and spinal cord were on average reduced by 70%, 51%, 67%, and 64% ( P ≤.05). Conclusions This novel 4π non-coplanar radiation delivery technique significantly improved dose gradient, reduced high dose spillage, and improved organ at risk sparing compared with state of the art VMAT plans.</description><identifier>ISSN: 0360-3016</identifier><identifier>EISSN: 1879-355X</identifier><identifier>DOI: 10.1016/j.ijrobp.2012.09.028</identifier><identifier>PMID: 23154076</identifier><language>eng</language><publisher>United States: Elsevier Inc</publisher><subject>ALGORITHMS ; HEALTH HAZARDS ; Hematology, Oncology and Palliative Medicine ; Humans ; INTEGRAL DOSES ; Kidney - radiation effects ; KIDNEYS ; LINEAR ACCELERATORS ; LIVER ; Liver - diagnostic imaging ; Liver - radiation effects ; Liver Neoplasms - diagnostic imaging ; Liver Neoplasms - surgery ; OPTIMIZATION ; Organ Sparing Treatments - methods ; Organs at Risk - diagnostic imaging ; Organs at Risk - radiation effects ; Particle Accelerators - instrumentation ; PATIENTS ; Quality Improvement ; Radiation Injuries - prevention & control ; Radiography ; Radiology ; RADIOLOGY AND NUCLEAR MEDICINE ; Radiosurgery - methods ; Radiosurgery - standards ; RADIOTHERAPY ; Radiotherapy Dosage - standards ; Radiotherapy Planning, Computer-Assisted - methods ; Radiotherapy, Intensity-Modulated - methods ; SPINAL CORD ; Spinal Cord - radiation effects ; STOMACH ; Stomach - radiation effects</subject><ispartof>International journal of radiation oncology, biology, physics, 2013-04, Vol.85 (5), p.1360-1366</ispartof><rights>Elsevier Inc.</rights><rights>2013 Elsevier Inc.</rights><rights>Copyright © 2013 Elsevier Inc. All rights reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c411t-b1593b0d56eaeb777d7cd6e9f415c52c1c706c7e8017e878c3eeec8d0bc117873</citedby><cites>FETCH-LOGICAL-c411t-b1593b0d56eaeb777d7cd6e9f415c52c1c706c7e8017e878c3eeec8d0bc117873</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S036030161203636X$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>230,314,776,780,881,3537,27901,27902,65534</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/23154076$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink><backlink>$$Uhttps://www.osti.gov/biblio/22224433$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>Dong, Peng, PhD</creatorcontrib><creatorcontrib>Lee, Percy, MD</creatorcontrib><creatorcontrib>Ruan, Dan, PhD</creatorcontrib><creatorcontrib>Long, Troy, BS</creatorcontrib><creatorcontrib>Romeijn, Edwin, PhD</creatorcontrib><creatorcontrib>Yang, Yingli, PhD</creatorcontrib><creatorcontrib>Low, Daniel, PhD</creatorcontrib><creatorcontrib>Kupelian, Patrick, MD</creatorcontrib><creatorcontrib>Sheng, Ke, PhD</creatorcontrib><title>4π Non-Coplanar Liver SBRT: A Novel Delivery Technique</title><title>International journal of radiation oncology, biology, physics</title><addtitle>Int J Radiat Oncol Biol Phys</addtitle><description>Purpose To improve the quality of liver stereotactic body radiation therapy (SBRT) treatments, a novel 4π framework was developed with accompanying algorithms to optimize non-coplanar beam orientations and fluences. The dose optimization is performed on a patient-specific deliverable beam geometry solution space, parameterized with patient and linear accelerator gantry orientations. Methods and Materials Beams causing collision between the gantry and the couch or patient were eliminated by simulating all beam orientations using a precise computer assisted design model of the linear accelerator and a human subject. Integrated beam orientation and fluence map optimizations were performed on remaining beams using a greedy column generation method. Testing of the new method was performed on 10 liver SBRT cases previously treated with 50 to 60 Gy in 5 fractions using volumetric modulated arc therapy (VMAT). For each patient, both 14 and 22 non-coplanar fields were selected and optimized to meet the objective of ≥95% of the planning target volume (PTV) covered by 100% of the prescription dose. Doses to organs at risk, normal liver volumes receiving <15 Gy, integral dose, and 50% dose spillage volumes were compared against the delivered clinical VMAT plans. Results Compared with the VMAT plans, the 4π plans yielded reduced 50% dose spillage volume and integral dose by 22% (range 10%-40%) and 19% (range 13%-26%), respectively. The mean normal liver volume receiving < 15 Gy was increased by 51 cc (range 21-107 cc) with a 31% reduction of the mean normal liver dose. Mean doses to the left kidney and right kidney and maximum doses to the stomach and spinal cord were on average reduced by 70%, 51%, 67%, and 64% ( P ≤.05). Conclusions This novel 4π non-coplanar radiation delivery technique significantly improved dose gradient, reduced high dose spillage, and improved organ at risk sparing compared with state of the art VMAT plans.</description><subject>ALGORITHMS</subject><subject>HEALTH HAZARDS</subject><subject>Hematology, Oncology and Palliative Medicine</subject><subject>Humans</subject><subject>INTEGRAL DOSES</subject><subject>Kidney - radiation effects</subject><subject>KIDNEYS</subject><subject>LINEAR ACCELERATORS</subject><subject>LIVER</subject><subject>Liver - diagnostic imaging</subject><subject>Liver - radiation effects</subject><subject>Liver Neoplasms - diagnostic imaging</subject><subject>Liver Neoplasms - surgery</subject><subject>OPTIMIZATION</subject><subject>Organ Sparing Treatments - methods</subject><subject>Organs at Risk - diagnostic imaging</subject><subject>Organs at Risk - radiation effects</subject><subject>Particle Accelerators - instrumentation</subject><subject>PATIENTS</subject><subject>Quality Improvement</subject><subject>Radiation Injuries - prevention & control</subject><subject>Radiography</subject><subject>Radiology</subject><subject>RADIOLOGY AND NUCLEAR MEDICINE</subject><subject>Radiosurgery - methods</subject><subject>Radiosurgery - standards</subject><subject>RADIOTHERAPY</subject><subject>Radiotherapy Dosage - standards</subject><subject>Radiotherapy Planning, Computer-Assisted - methods</subject><subject>Radiotherapy, Intensity-Modulated - methods</subject><subject>SPINAL CORD</subject><subject>Spinal Cord - radiation effects</subject><subject>STOMACH</subject><subject>Stomach - radiation effects</subject><issn>0360-3016</issn><issn>1879-355X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2013</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFkc-O0zAQxi0EYsvCGyAUiQuXBE_sxAkHpKX8lSqQ2CLtzUomU-GQxl07rdQbb8grMVEWDlzwwR7Zv5n5_I0QT0FmIKF82WeuD749ZLmEPJN1JvPqnlhBZepUFcXNfbGSqpSpYvhCPIqxl1ICGP1QXOQKCi1NuRJG__qZfPZjuvaHoRmbkGzciUJy_ebr9lVyxU8nGpK3NMy352RL-H10t0d6LB7smiHSk7vzUnx7_267_phuvnz4tL7apKgBprSFolat7IqSGmqNMZ3BrqR6p6HAIkdAI0s0VEngzVSoiAirTrbIUiujLsXzpa6Pk7MR3cQK0I8j4WRzXlorxdSLhToEz-LiZPcuIg38I_LHaEFBDZXOdcWoXlAMPsZAO3sIbt-EswVpZ2Ntbxdj7WyslbVlYznt2V2HY7un7m_SHycZeL0AxG6cHIVZLI1InQuz1s67_3X4twAObnTYDD_oTLH3xzCy0xZs5Bx7PQ93ni3kHKnyRv0GYxCd6g</recordid><startdate>20130401</startdate><enddate>20130401</enddate><creator>Dong, Peng, PhD</creator><creator>Lee, Percy, MD</creator><creator>Ruan, Dan, PhD</creator><creator>Long, Troy, BS</creator><creator>Romeijn, Edwin, PhD</creator><creator>Yang, Yingli, PhD</creator><creator>Low, Daniel, PhD</creator><creator>Kupelian, Patrick, MD</creator><creator>Sheng, Ke, PhD</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><scope>OTOTI</scope></search><sort><creationdate>20130401</creationdate><title>4π Non-Coplanar Liver SBRT: A Novel Delivery Technique</title><author>Dong, Peng, PhD ; Lee, Percy, MD ; Ruan, Dan, PhD ; Long, Troy, BS ; Romeijn, Edwin, PhD ; Yang, Yingli, PhD ; Low, Daniel, PhD ; Kupelian, Patrick, MD ; Sheng, Ke, PhD</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c411t-b1593b0d56eaeb777d7cd6e9f415c52c1c706c7e8017e878c3eeec8d0bc117873</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2013</creationdate><topic>ALGORITHMS</topic><topic>HEALTH HAZARDS</topic><topic>Hematology, Oncology and Palliative Medicine</topic><topic>Humans</topic><topic>INTEGRAL DOSES</topic><topic>Kidney - radiation effects</topic><topic>KIDNEYS</topic><topic>LINEAR ACCELERATORS</topic><topic>LIVER</topic><topic>Liver - diagnostic imaging</topic><topic>Liver - radiation effects</topic><topic>Liver Neoplasms - diagnostic imaging</topic><topic>Liver Neoplasms - surgery</topic><topic>OPTIMIZATION</topic><topic>Organ Sparing Treatments - methods</topic><topic>Organs at Risk - diagnostic imaging</topic><topic>Organs at Risk - radiation effects</topic><topic>Particle Accelerators - instrumentation</topic><topic>PATIENTS</topic><topic>Quality Improvement</topic><topic>Radiation Injuries - prevention & control</topic><topic>Radiography</topic><topic>Radiology</topic><topic>RADIOLOGY AND NUCLEAR MEDICINE</topic><topic>Radiosurgery - methods</topic><topic>Radiosurgery - standards</topic><topic>RADIOTHERAPY</topic><topic>Radiotherapy Dosage - standards</topic><topic>Radiotherapy Planning, Computer-Assisted - methods</topic><topic>Radiotherapy, Intensity-Modulated - methods</topic><topic>SPINAL CORD</topic><topic>Spinal Cord - radiation effects</topic><topic>STOMACH</topic><topic>Stomach - radiation effects</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Dong, Peng, PhD</creatorcontrib><creatorcontrib>Lee, Percy, MD</creatorcontrib><creatorcontrib>Ruan, Dan, PhD</creatorcontrib><creatorcontrib>Long, Troy, BS</creatorcontrib><creatorcontrib>Romeijn, Edwin, PhD</creatorcontrib><creatorcontrib>Yang, Yingli, PhD</creatorcontrib><creatorcontrib>Low, Daniel, PhD</creatorcontrib><creatorcontrib>Kupelian, Patrick, MD</creatorcontrib><creatorcontrib>Sheng, Ke, PhD</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><collection>OSTI.GOV</collection><jtitle>International journal of radiation oncology, biology, physics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Dong, Peng, PhD</au><au>Lee, Percy, MD</au><au>Ruan, Dan, PhD</au><au>Long, Troy, BS</au><au>Romeijn, Edwin, PhD</au><au>Yang, Yingli, PhD</au><au>Low, Daniel, PhD</au><au>Kupelian, Patrick, MD</au><au>Sheng, Ke, PhD</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>4π Non-Coplanar Liver SBRT: A Novel Delivery Technique</atitle><jtitle>International journal of radiation oncology, biology, physics</jtitle><addtitle>Int J Radiat Oncol Biol Phys</addtitle><date>2013-04-01</date><risdate>2013</risdate><volume>85</volume><issue>5</issue><spage>1360</spage><epage>1366</epage><pages>1360-1366</pages><issn>0360-3016</issn><eissn>1879-355X</eissn><abstract>Purpose To improve the quality of liver stereotactic body radiation therapy (SBRT) treatments, a novel 4π framework was developed with accompanying algorithms to optimize non-coplanar beam orientations and fluences. The dose optimization is performed on a patient-specific deliverable beam geometry solution space, parameterized with patient and linear accelerator gantry orientations. Methods and Materials Beams causing collision between the gantry and the couch or patient were eliminated by simulating all beam orientations using a precise computer assisted design model of the linear accelerator and a human subject. Integrated beam orientation and fluence map optimizations were performed on remaining beams using a greedy column generation method. Testing of the new method was performed on 10 liver SBRT cases previously treated with 50 to 60 Gy in 5 fractions using volumetric modulated arc therapy (VMAT). For each patient, both 14 and 22 non-coplanar fields were selected and optimized to meet the objective of ≥95% of the planning target volume (PTV) covered by 100% of the prescription dose. Doses to organs at risk, normal liver volumes receiving <15 Gy, integral dose, and 50% dose spillage volumes were compared against the delivered clinical VMAT plans. Results Compared with the VMAT plans, the 4π plans yielded reduced 50% dose spillage volume and integral dose by 22% (range 10%-40%) and 19% (range 13%-26%), respectively. The mean normal liver volume receiving < 15 Gy was increased by 51 cc (range 21-107 cc) with a 31% reduction of the mean normal liver dose. Mean doses to the left kidney and right kidney and maximum doses to the stomach and spinal cord were on average reduced by 70%, 51%, 67%, and 64% ( P ≤.05). Conclusions This novel 4π non-coplanar radiation delivery technique significantly improved dose gradient, reduced high dose spillage, and improved organ at risk sparing compared with state of the art VMAT plans.</abstract><cop>United States</cop><pub>Elsevier Inc</pub><pmid>23154076</pmid><doi>10.1016/j.ijrobp.2012.09.028</doi><tpages>7</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0360-3016 |
| ispartof | International journal of radiation oncology, biology, physics, 2013-04, Vol.85 (5), p.1360-1366 |
| issn | 0360-3016 1879-355X |
| language | eng |
| recordid | cdi_osti_scitechconnect_22224433 |
| source | MEDLINE; Elsevier ScienceDirect Journals Complete |
| subjects | ALGORITHMS HEALTH HAZARDS Hematology, Oncology and Palliative Medicine Humans INTEGRAL DOSES Kidney - radiation effects KIDNEYS LINEAR ACCELERATORS LIVER Liver - diagnostic imaging Liver - radiation effects Liver Neoplasms - diagnostic imaging Liver Neoplasms - surgery OPTIMIZATION Organ Sparing Treatments - methods Organs at Risk - diagnostic imaging Organs at Risk - radiation effects Particle Accelerators - instrumentation PATIENTS Quality Improvement Radiation Injuries - prevention & control Radiography Radiology RADIOLOGY AND NUCLEAR MEDICINE Radiosurgery - methods Radiosurgery - standards RADIOTHERAPY Radiotherapy Dosage - standards Radiotherapy Planning, Computer-Assisted - methods Radiotherapy, Intensity-Modulated - methods SPINAL CORD Spinal Cord - radiation effects STOMACH Stomach - radiation effects |
| title | 4π Non-Coplanar Liver SBRT: A Novel Delivery Technique |
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