Article(id=1320388809896866741, tenantId=1146029695717560320, journalId=1319373289681944729, issueId=1320388809389355957, articleNumber=null, orderNo=null, doi=10.11876/mimt202501011, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=null, receivedDateStr=null, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1792734823917, onlineDateStr=2026-10-23, pubDate=1739116800000, pubDateStr=2025-02-10, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1792734823917, onlineIssueDateStr=2026-10-23, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1792734823917, creator=13701087609, updateTime=1792734823917, updator=13701087609, issue=Issue{id=1320388809389355957, tenantId=1146029695717560320, journalId=1319373289681944729, year='2025', volume='31', issue='1', pageStart='1', pageEnd='104', issueExtLink='null', onlineDate='null', pubDate='1739116800000', pubDateStr='2025-02-10', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1792734823796, creator='13701087609', updateTime=1792746481175, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1320437704052027415, tenantId=1146029695717560320, journalId=1319373289681944729, issueId=1320388809389355957, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1320437704056221720, tenantId=1146029695717560320, journalId=1319373289681944729, issueId=1320388809389355957, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=63, endPage=69, ext={EN=ArticleExt(id=1320388811490702262, articleId=1320388809896866741, tenantId=1146029695717560320, journalId=1319373289681944729, language=EN, title=Comparison of two dosimetric verification methods of MatrixX in plan verification of dynamic and static intensity modulated radiotherapy for breast tumor, columnId=null, journalTitle=Modern Instruments & Medical Treatment, columnName=null, runingTitle=null, highlight=null, articleAbstract=
Objective

To explore the difference between two dosimetric verification methods by using the IBA MatrixX in the verification of dynamic and static intensity modulated plan for breast tumor.

Methods

A total of 20 breast tumor patients treated with postoperative radiotherapy in our hospital form November 2023 to October 2024 were selected. The integrated dosimetric measurement of static intensity modulation (sIMRT) and dynamic intensity modulation (dIMRT) treatment plans for each patient were measured with the gantry fixed at 0 degree for all beams and actual gantry. According to different 1mm/1%, 2mm/2%, 2 mm/3% and 3mm/3% standards, the γ passing rate of each measurement result was analyzed.

Results

Under the 3mm/3% standard, the γ passing rate of each measurement result was greater than 95%, which meets clinical requirements. The γ passing rate with the continuous improvement of the standard, the differences in dose distribution gradually become more prominent, and the γ passing rate gradually deteriorates. Under the same intensity modulation mode, the gantry Angle zeroing group was significantly better than the actual gantry group, and the difference was statistically significant (P<0.05). There was no significant difference between sIMRT and dIMRT under 2mm/2%, 2mm/3%, 3mm/3% standard conditions with the same verification method and different intensity modulation modes (P<0.05). At the 1mm/1% standard, the BCS_sIMRT_0 was better than the BCS_dIMRT_0, and the RM_sIMRT was better than RM_dIMRT, and the difference was statistically significant (P<0.05). In the BEV direction, the average maximum vertical distances from the PTV edge to the center of the shooting field in X and Y axis directions were (9.80±1.72) cm and (7.18±1.48) cm in BCS group, and (12.89±2.13) cm and (9.48±0.98) cm in RM group, respectively. Actual gantry Angle multi-field combination verification method γ pass rate is not affected by PTV edge to X wheelbase separation (P<0.05), but the γ pass rate of RM group was negatively correlated with PTV edge to Y wheelbase departure (r<0) and were statistically significant (P<0.05).

Conclusion

When validating the IMRT radiotherapy plan for breast tumor in the tangent field off the center, if selecting the 3mm/3% standard, the verification method of actual rack angle multi field synthesis that is more in line with the real irradiation situation can be used, or selecting the 2mm/2% and 2mm/3% standards, the verification method of 0-angle can be chosen.

, authors=Yaming Fan, Jiawen Yu, Feng Nian, Shaoyan Shen, authorsList=Yaming Fan, Jiawen Yu, Feng Nian, Shaoyan Shen, authorCompany=null, correspAuthors=null, authorNote=null, correspAuthorsNote=null, copyrightStatement=All copyrights in 2025 belong to the sponsor of the journal.Not content published by the journal may be reproduced or abridged without authorization., copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1320388811826246583, articleId=1320388809896866741, tenantId=1146029695717560320, journalId=1319373289681944729, language=CN, title=MatrixX两种剂量验证方法在乳腺癌动静态调强放疗计划剂量验证中的对比研究, columnId=1320381058969883180, journalTitle=现代仪器与医疗, columnName=临床研究, runingTitle=null, highlight=null, articleAbstract=
目的

比较IBA MatrixX两种剂量验证方法在乳腺癌动静态调强计划剂量验证中的差异。

方法

选取2023年11月—2024年10月蚌埠市第三人民医院收治的20例需要放疗的乳腺癌女性患者,包括保乳术后(Breast Conserving Surgery,BCS)患者10例,根治术后(Radical Mastectomy,RM)患者10例,利用IBA MatrixX分别对每位患者的静态调强(Static Intensity Modulated Radiation Therapy,sIMRT)和动态调强(dynamic Intensity Modulated Radiotherapy,dIMRT)治疗计划进行机架角度归零和实际机架角度多野合成的两种方法的剂量验证,根据不同评判标准比较剂量验证γ通过率。

结果

八组放疗计划在3mm/3%标准下γ通过率均大于95%满足临床要求,随着标准的提高逐渐变差。同种调强模式下,机架角度归零组明显优于实际机架组,差异有统计学意义(P<0.05);同种验证方法,不同调强模式,在2mm/2%、2mm/3%、3mm/3%标准条件下,sIMRT与dIMRT比较差异均无统计学意义(P>0.05),在1mm/1%标准下,BCS_sIMRT_0组优于BCS_dIMRT_0组、RM_sIMRT组优于RM_dIMRT组,差异有统计学意义(P<0.05)。在BEV方向BCS患者PTV边缘到射野中心X、Y轴方向平均最大垂直距离分别为(9.80±1.72)cm、(7.18±1.48)cm,RM患者分别为(12.89±2.13)cm、(9.48±0.98)cm,实际机架角度多野合成验证方法γ通过率不受PTV边缘到X轴距离的影响(P>0.05),但RM患者的γ通过率与PTV边缘到Y轴距离呈负相关性(r<0),且具有统计学意义(P<0.05)。

结论

对于乳腺癌偏中心切线野IMRT放疗计划进行验证时,选择3mm/3%标准时,可采用更符合真实照射情况的实际机架角度多野合成的验证方法,选择2mm/2%、2mm/3%标准时,在保证严格质量控制的前提下,可以选择机架角度归零多野合成的验证方法,从而更快速获取剂量误差,提高工作效率。

, authors=范亚明, 郁家文, 年峰, 沈少艳, authorsList=范亚明, 郁家文, 年峰, 沈少艳, authorCompany=null, correspAuthors=null, authorNote=

范亚明,男,硕士研究生,工程师,研究方向:医用放射线设备

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范亚明,男,硕士研究生,工程师,研究方向:医用放射线设备

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MatrixX两种剂量验证方法在乳腺癌动静态调强放疗计划剂量验证中的对比研究
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范亚明 , 郁家文 , 年峰 , 沈少艳
现代仪器与医疗 | 临床研究 2025,31(1): 63-69
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现代仪器与医疗 |临床研究 2025 , 31 (1) : 63 -69
MatrixX两种剂量验证方法在乳腺癌动静态调强放疗计划剂量验证中的对比研究
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范亚明, 郁家文, 年峰, 沈少艳
作者信息
  • 蚌埠市第三人民医院放射治疗科,蚌埠 233000
作者简介:

范亚明,男,硕士研究生,工程师,研究方向:医用放射线设备

Comparison of two dosimetric verification methods of MatrixX in plan verification of dynamic and static intensity modulated radiotherapy for breast tumor
Yaming Fan, Jiawen Yu, Feng Nian, Shaoyan Shen
Affiliations
  • Department of Radiotherapy, The Third People's Hospital of Bengbu, Bengbu 233000, China
出版时间: 2025-02-10 doi: 10.11876/mimt202501011
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目的

比较IBA MatrixX两种剂量验证方法在乳腺癌动静态调强计划剂量验证中的差异。

方法

选取2023年11月—2024年10月蚌埠市第三人民医院收治的20例需要放疗的乳腺癌女性患者,包括保乳术后(Breast Conserving Surgery,BCS)患者10例,根治术后(Radical Mastectomy,RM)患者10例,利用IBA MatrixX分别对每位患者的静态调强(Static Intensity Modulated Radiation Therapy,sIMRT)和动态调强(dynamic Intensity Modulated Radiotherapy,dIMRT)治疗计划进行机架角度归零和实际机架角度多野合成的两种方法的剂量验证,根据不同评判标准比较剂量验证γ通过率。

结果

八组放疗计划在3mm/3%标准下γ通过率均大于95%满足临床要求,随着标准的提高逐渐变差。同种调强模式下,机架角度归零组明显优于实际机架组,差异有统计学意义(P<0.05);同种验证方法,不同调强模式,在2mm/2%、2mm/3%、3mm/3%标准条件下,sIMRT与dIMRT比较差异均无统计学意义(P>0.05),在1mm/1%标准下,BCS_sIMRT_0组优于BCS_dIMRT_0组、RM_sIMRT组优于RM_dIMRT组,差异有统计学意义(P<0.05)。在BEV方向BCS患者PTV边缘到射野中心X、Y轴方向平均最大垂直距离分别为(9.80±1.72)cm、(7.18±1.48)cm,RM患者分别为(12.89±2.13)cm、(9.48±0.98)cm,实际机架角度多野合成验证方法γ通过率不受PTV边缘到X轴距离的影响(P>0.05),但RM患者的γ通过率与PTV边缘到Y轴距离呈负相关性(r<0),且具有统计学意义(P<0.05)。

结论

对于乳腺癌偏中心切线野IMRT放疗计划进行验证时,选择3mm/3%标准时,可采用更符合真实照射情况的实际机架角度多野合成的验证方法,选择2mm/2%、2mm/3%标准时,在保证严格质量控制的前提下,可以选择机架角度归零多野合成的验证方法,从而更快速获取剂量误差,提高工作效率。

MatrixX  /  乳腺癌  /  动态调强  /  静态调强  /  γ通过率  /  剂量验证
Objective

To explore the difference between two dosimetric verification methods by using the IBA MatrixX in the verification of dynamic and static intensity modulated plan for breast tumor.

Methods

A total of 20 breast tumor patients treated with postoperative radiotherapy in our hospital form November 2023 to October 2024 were selected. The integrated dosimetric measurement of static intensity modulation (sIMRT) and dynamic intensity modulation (dIMRT) treatment plans for each patient were measured with the gantry fixed at 0 degree for all beams and actual gantry. According to different 1mm/1%, 2mm/2%, 2 mm/3% and 3mm/3% standards, the γ passing rate of each measurement result was analyzed.

Results

Under the 3mm/3% standard, the γ passing rate of each measurement result was greater than 95%, which meets clinical requirements. The γ passing rate with the continuous improvement of the standard, the differences in dose distribution gradually become more prominent, and the γ passing rate gradually deteriorates. Under the same intensity modulation mode, the gantry Angle zeroing group was significantly better than the actual gantry group, and the difference was statistically significant (P<0.05). There was no significant difference between sIMRT and dIMRT under 2mm/2%, 2mm/3%, 3mm/3% standard conditions with the same verification method and different intensity modulation modes (P<0.05). At the 1mm/1% standard, the BCS_sIMRT_0 was better than the BCS_dIMRT_0, and the RM_sIMRT was better than RM_dIMRT, and the difference was statistically significant (P<0.05). In the BEV direction, the average maximum vertical distances from the PTV edge to the center of the shooting field in X and Y axis directions were (9.80±1.72) cm and (7.18±1.48) cm in BCS group, and (12.89±2.13) cm and (9.48±0.98) cm in RM group, respectively. Actual gantry Angle multi-field combination verification method γ pass rate is not affected by PTV edge to X wheelbase separation (P<0.05), but the γ pass rate of RM group was negatively correlated with PTV edge to Y wheelbase departure (r<0) and were statistically significant (P<0.05).

Conclusion

When validating the IMRT radiotherapy plan for breast tumor in the tangent field off the center, if selecting the 3mm/3% standard, the verification method of actual rack angle multi field synthesis that is more in line with the real irradiation situation can be used, or selecting the 2mm/2% and 2mm/3% standards, the verification method of 0-angle can be chosen.

MatrixX  /  Breast tumor  /  dIMRT  /  sIMRT  /  γ Passing rate  /  Dosimetric verification
范亚明, 郁家文, 年峰, 沈少艳. MatrixX两种剂量验证方法在乳腺癌动静态调强放疗计划剂量验证中的对比研究. 现代仪器与医疗, 2025 , 31 (1) : 63 -69 . DOI: 10.11876/mimt202501011
Yaming Fan, Jiawen Yu, Feng Nian, Shaoyan Shen. Comparison of two dosimetric verification methods of MatrixX in plan verification of dynamic and static intensity modulated radiotherapy for breast tumor[J]. Modern Instruments & Medical Treatment, 2025 , 31 (1) : 63 -69 . DOI: 10.11876/mimt202501011
  • 蚌埠医科大学科技项目(自然科学重点):乳腺癌保乳术后切线调强放疗的剂量学与验证方法研究
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2025年第31卷第1期
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doi: 10.11876/mimt202501011
  • 首发时间:2026-10-23
  • 出版时间:2025-02-10
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蚌埠医科大学科技项目(自然科学重点):乳腺癌保乳术后切线调强放疗的剂量学与验证方法研究
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    蚌埠市第三人民医院放射治疗科,蚌埠 233000
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2种不同金属材料的力学参数
科
Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)
属
Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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