| Li Guoquan,Ding Zeyu,Fu Wensheng,Yang Zhiyong,Zhang Sheng,Kang Xi.The application value of a cervical collar combined with a vacuum pad in the positioning of Cyberknife radiosurgery for cervical spine metastases[J].Chinese Journal of Radiological Medicine and Protection,2023,43(9):712-716 |
| The application value of a cervical collar combined with a vacuum pad in the positioning of Cyberknife radiosurgery for cervical spine metastases |
| Received:February 09, 2023 |
| DOI：10.3760/cma.j.cn112271-20230209-00031 |
| KeyWords:Positioning method Cyberknife Stereotactic radiotherapy Cervical spine metastasis Cervical collar |
| FundProject: |
| Author Name | Affiliation | E-mail | | Li Guoquan | School of Nuclear Science and Technology, University of South China, Hengyang 421001, China | | | Ding Zeyu | Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China | | | Fu Wensheng | School of Nuclear Science and Technology, University of South China, Hengyang 421001, China | | | Yang Zhiyong | Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China | | | Zhang Sheng | Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China | | | Kang Xi | School of Nuclear Science and Technology, University of South China, Hengyang 421001, China | kangcy2011@qq.com |
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| Abstract:: |
| Objective To explore the clinical application value of personalized positioning using a cervical collar combined with a vacuum pad in the Cyberknife radiosurgery for cervical spine metastases.Methods This study enrolled 68 patients with cervical spine metastases to be treated with Cyberknife stereotactic radiotherapy for cervical spines. These patients consisted of 41 males and 27 females, aged from 43 to 78 years (average:51.5 years). They were divided into groups A, B, and C using the random number table method. The patient positioning in these groups was achieved using a cervical collar combined with a vacuum pad (personalized positioning), a vacuum pad, and a small head mold, respectively. After the first treatment, the comfort levels of the positioning molds during treatment were investigated. After radiotherapy, the average deviations in translational and rotational directions, the minimum tolerance distance (dxAB), the minimum rotational deviation angle (drAB), the proportion of false nodes, and the comfort level of the three positioning method were acquired for analysis.Results The three groups showed statistically significant differences in the inf-sup, left-right, ant-post, pitch, roll, and yaw directions during the first treatment (F=7.13, 2.56, 3.41, 4.21, 2.71, 8.14, P < 0.05). Compared with groups B and C, Group A had significantly lower dxAB, drAB, and the proportion of false nodes, showing statistically significant differences (F=5.06, 4.31, 3.30, P < 0.05). Furthermore, patients in groups A and B felt more comfortable with the positioning molds than those in Group C (χ2=12.46, P < 0.05), with no statistically significant differences between groups A and B (P > 0.05).Conclusions For patients with cervical spine metastases undergoing Cyberknife radiosurgery for cervical spines, the personalized positioning using a cervical collar combined with a vacuum pad can improve the accuracy and safety of Cyberknife spinal tracking while remaining the comfort level. |
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