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Double CT imaging can measure the respiratory movement of small pulmonary tumors during stereotactic ablative radiotherapy
Shen, Ge1; Wang, Ying-Jie2,3; Sheng, Hong-Guo1; Duan, Xiao-Ping1; Wang, Jun-Liang1; Zhang, Wei-Jing1; Zhou, Zhen-Shan1; Zhu, Guang-Ying4,5; Xia, Ting-Yi2,3
关键词Double Ct Scan Small Pulmonary Tumors Respiratory Movement Stereotactic Ablative Radiotherapy
刊名JOURNAL OF THORACIC DISEASE
2012-04-01
DOI10.3978/j.issn.2072-1439.2012.01.04
4期:2页:131-140
收录类别SCI
文章类型Article
WOS标题词Science & Technology
类目[WOS]Respiratory System
研究领域[WOS]Respiratory System
关键词[WOS]CELL LUNG-CANCER ; 4-DIMENSIONAL COMPUTED-TOMOGRAPHY ; BODY RADIATION-THERAPY ; CONFORMAL RADIOTHERAPY ; MOTION ; MOBILITY
英文摘要

Purpose: The purpose of this study was to investigate the application of double CT imaging to measuring the respiratory movement of small pulmonary tumors during stereotactic ablative radiotherapy (SABR).

Methods: A total of 122 small pulmonary tumors were measured in 45 patients. CT scans were conducted twice in all 122 tumors, once at the end of quiet inhalation and once at the end of exhalation. CT scans were conducted three times including at the end of quiet inhalation, at the end of exhalation and at free breathing in 36 tumors of 17 patients. The displacement of the tumor center in three directions was measured.

Results: The 3D motion of 122 tumors was 10.10 +/- 7.16 mm. On average, the tumors moved 1.96 +/- 2.03 mm (rang, 0-9 mm) in the X direction, 5.19 +/- 4.69 mm (rang, 0-19 mm) in the Y direction, and 7.38 +/- 6.48 mm (rang, 0-26 min) in the Z direction. The 3D motion of tumors in the lower lung (13.00 +/- 7.64 mm) was significantly greater than that in the upper lung (7.15 +/- 5.14 mm), P<0.01. The 3D motion of the lower left lung was 16.35 +/- 7.31 mm, which was significantly greater than that of the lower right lung (11.40 +/- 7.04 mm), P<0.05. Movement in the anterior lung in the Y direction was significantly larger than in the posterior lung. The motion was 7.49 +/- 5.43 mm and 4.04 +/- 3.82 mm respectively, P<0.01.

Conclusions: Double CT imaging provides accurate data for determining the outline of each target area during stereotactic ablative radiotherapy plane. The location of small pulmonary tumor foci was significantly affected by respiratory and cardiac motion.

语种英语
WOS记录号WOS:000314789900007
引用统计
被引频次:5[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.bjmu.edu.cn/handle/400002259/54727
专题北京大学临床肿瘤学院_肿瘤放疗科
作者单位1.Acad Mil Med Sci, Affiliated Hosp, Dept Radiat Oncol, Beijing, Peoples R China
2.AF Gen Hosp, Army Radiat Canc Ctr, Beijing 100036, Peoples R China
3.AF Gen Hosp, Dept Radiat Oncol, Beijing 100036, Peoples R China
4.Beijing Canc Hosp, Dept Radiat Oncol, Beijing 100036, Peoples R China
5.Peking Univ, Canc Hosp, Beijing 100036, Peoples R China
推荐引用方式
GB/T 7714
Shen, Ge,Wang, Ying-Jie,Sheng, Hong-Guo,et al. Double CT imaging can measure the respiratory movement of small pulmonary tumors during stereotactic ablative radiotherapy[J]. JOURNAL OF THORACIC DISEASE,2012,4(2):131-140.
APA Shen, Ge.,Wang, Ying-Jie.,Sheng, Hong-Guo.,Duan, Xiao-Ping.,Wang, Jun-Liang.,...&Xia, Ting-Yi.(2012).Double CT imaging can measure the respiratory movement of small pulmonary tumors during stereotactic ablative radiotherapy.JOURNAL OF THORACIC DISEASE,4(2),131-140.
MLA Shen, Ge,et al."Double CT imaging can measure the respiratory movement of small pulmonary tumors during stereotactic ablative radiotherapy".JOURNAL OF THORACIC DISEASE 4.2(2012):131-140.
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