该数据属于X射线成像装置的位置精度测量的实验数据，用于描述X射线成像装置的性能指标，通过影像设备和图像处理方法对患者靶区在治疗前进行精准的定位、在治疗过程中进行实时运动跟踪，实现对肿瘤的精确放射治疗，降低对肿瘤周边正常组织及关键器官的损伤。
", "ds_source": "定位中心点机械偏差测试了6次；定位精度测试了18个位置；定位稳定性测试了两组，每组测量10次；由呼吸引导的靶区运动探测精度测试了30次。中心点机械偏差的平均值为0.03mm；定位精度的最大值为0.54mm；定位稳定性的标准偏差的最大值为0.09mm；运动靶区探测精度检测，定位稳定性的标准偏差的最大值为1.12mm。
", "ds_process_way": "由X射线成像装置的位置精度测量的实验产生
", "ds_quality": "定位中心点机械偏差通过安装固定校准装置，使校准装置的金属球的位置与定位基准点一致，使用校准软件采集一对X射线投影图像，计算金属球中心位置的机械偏差；定位精度使用带有金标的人体模型来测试；定位稳定性使用人体模型来测试；由呼吸引起的靶区运动探测精度使用呼吸运动模型来测试。
", "ds_acq_start_time": "2018-12-20 00:00:00", "ds_acq_end_time": "2018-12-22 00:00:00", "ds_acq_place": "甘肃,兰州", "ds_acq_lon_east": null, "ds_acq_lat_south": null, "ds_acq_lon_west": null, "ds_acq_lat_north": null, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "apply-access", "ds_total_size": 6581390, "ds_files_count": 3, "ds_format": "word", "ds_space_res": null, "ds_time_res": "", "ds_coordinate": "无", "ds_projection": "", "ds_thumbnail": "2b837388-e04a-4c0f-a776-19615e1ff59b.png", "ds_thumb_from": 0, "ds_ref_way": "", "paper_ref_way": "", "ds_ref_instruction": "", "ds_from_station": null, "organization_id": "9971252d-7beb-4464-bc08-bdcc5a1d7dd1", "ds_serv_man": "敏玉芳", "ds_serv_phone": "0931-4967596", "ds_serv_mail": "ncdc@lzb.ac.cn", "doi_value": "", "subject_codes": [], "quality_level": 3, "publish_time": "2023-09-21 15:34:40", "last_updated": "2023-09-21 15:34:40", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.NCDC.IMP.DB3985.2023", "i18n": { "en": { "title": "Data of patient position accuracy with X-ray imaging ", "ds_format": "", "ds_source": "The mechanical deviation of the positioning center point was tested six times; 18 positions were tested for positioning accuracy; Positioning stability was tested in two groups, 10 times in each group; The accuracy of breath guided target motion detection was tested 30 times. The average mechanical deviation of the center point is 0.03mm; The maximum positioning accuracy is 0.54mm; The maximum standard deviation of positioning stability is 0.09mm; The maximum standard deviation of positioning stability is 1.12mm.
", "ds_quality": "By installing a fixed calibration device, the position of the metal ball of the calibration device is consistent with the positioning reference point. A pair of X-ray projection images are collected by the calibration software to calculate the mechanical deviation of the center position of the metal ball; The positioning accuracy is tested by the human body model with gold mark; The positioning stability was tested with a manikin; The detection accuracy of target motion caused by respiration was tested by respiratory motion model.
", "ds_ref_way": "", "ds_abstract": "This data belongs to the experimental data of position accuracy measurement of X-ray imaging device, which is used to describe the performance index of X-ray imaging device. Through image equipment and image processing method, the patient's target area is accurately located before treatment, and real-time motion tracking is carried out during treatment, so as to achieve accurate radiotherapy of tumor, Reduce the damage to normal tissues and key organs around the tumor.
", "ds_time_res": "", "ds_acq_place": "Lanzhou, Gansu", "ds_space_res": "", "ds_projection": "", "ds_process_way": "It is generated by the experiment of position accuracy measurement of X-ray imaging device
", "ds_ref_instruction": "" } }, "submit_center_id": "ncdc", "data_level": 0, "license_type": "CC BY 4.0", "doi_reg_from": "reg_local", "cstr_reg_from": "reg_local", "doi_not_reg_reason": null, "cstr_not_reg_reason": null, "is_paper_in_submitting": false, "ds_topic_tags": [ "X射线引导", "患者摆位", "实时跟踪" ], "ds_subject_tags": [], "ds_class_tags": [], "ds_locus_tags": [ "甘肃省", "兰州" ], "ds_time_tags": [ 2018 ], "ds_contributors": [ { "true_name": "肖国青", "email": "xiaogq@impcas.ac.cn", "work_for": "中国科学院近代物理研究所", "country": "中国" } ], "ds_meta_authors": [ { "true_name": "肖国青", "email": "xiaogq@impcas.ac.cn", "work_for": "中国科学院近代物理研究所", "country": "中国" } ], "ds_managers": [ { "true_name": "肖国青", "email": "xiaogq@impcas.ac.cn", "work_for": "中国科学院近代物理研究所", "country": "中国" } ], "category": "其他" }