A Method for Real-Time Patient Positioning Verification in Radiotherapy Using Multi-Angular Images with Conventional Video Cameras
文献类型：期刊论文
| 作者 | Shen, GS ; Dai, ZY; Chen, WQ; Liu, XG; Ma, YY; He, PB; Xiao, GQ; Li, Q1,3
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| 刊名 | J MED IMAG HEALTH IN
 |
| 出版日期 | 2020 |
| 卷号 | 10页码:285-294 |
| DOI | 10.1166/jmihi.2020.2886 |
| 英文摘要 | Background Accurate patient positioning and the corresponding position verification play a key role in precision radiotherapy. The conventional position verification techniques, such as cone-beam computed tomography (CBCT), used in radiotherapy deliver additional radiation doses to patients; thus some complications may occur in the surrounding normal tissue. Additionally, the present registration and fusion algorithms require a long time to verify and monitor the patient's position in real-time. Method: A new simple method using three conventional video cameras from different directions for observing the changes in the patient's position and taking the multiangular surface images of the patient without delivering additional doses of radiation is proposed in this paper. Real-time patient position verification could be achieved through this Oriented FAST and Rotated BRIEF (ORB) algorithm modified by us. Results: A plastic patient model immobilized with thermoplastic shell on a simulation couch was used to verify the accuracy and feasibility of our method. Testing results showed that the position and angle offset errors identified with our system were less than 1 mm and 1 degrees, respectively. Moreover, the modified ORB algorithm was fast enough for real-time images comparison. Conclusion: This proposed method shows a great potential for application in verifying and monitoring the patient's position in real time during radiotherapy. |
| WOS记录号 | WOS:000496931800002 |
| 源URL | [http://119.78.100.186/handle/113462/135949]  |
| 专题 | 生物医学中心 |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Key Lab Heavy Ion Radiat Biol & Med, Lanzhou 730000, Gansu, Peoples R China 3.Key Lab Basic Res Heavy Ion Radiat Applicat Med, Lanzhou 730000, Gansu, Peoples R China 4.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Gansu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Shen, GS,Dai, ZY,Chen, WQ,et al. A Method for Real-Time Patient Positioning Verification in Radiotherapy Using Multi-Angular Images with Conventional Video Cameras[J]. J MED IMAG HEALTH IN,2020,10:285-294. |
| APA | Shen, GS.,Dai, ZY.,Chen, WQ.,Liu, XG.,Ma, YY.,...&Li, Q.(2020).A Method for Real-Time Patient Positioning Verification in Radiotherapy Using Multi-Angular Images with Conventional Video Cameras.J MED IMAG HEALTH IN,10,285-294. |
| MLA | Shen, GS,et al."A Method for Real-Time Patient Positioning Verification in Radiotherapy Using Multi-Angular Images with Conventional Video Cameras".J MED IMAG HEALTH IN 10(2020):285-294. |
入库方式： OAI收割
来源：近代物理研究所
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