Biplane fluoroscopy derived humerus and scapula kinematics during arm elevation and rotation

This dataset contains torso, scapula, and humerus kinematics from 20 healthy subjects performing coronal plane abduction, scapular plane abduction, forward elevation, internal external rotation at 90º of abduction, and internal external rotation in adduction. The humerus and scapula were imaged at 100 Hz using a biplane fluoroscopy system. 3D models of the humerus and scapula were constructed from each subject’s CT scan. Model-based markerless tracking ascertained the 3D position and orientation of each bone model by semi-automatically aligning digitally reconstructed radiographs against each frame of the biplane fluoroscopy recordings. The kinematics of the torso were measured using skin marker motion capture.本数据集包含20名健康受试者完成指定动作时的躯干、肩胛骨（scapula）与肱骨（humerus）运动学数据，所涉动作包括冠状面（coronal plane）外展、肩胛面（scapular plane）外展、前屈、外展90°位内外旋以及内收位内外旋。研究采用双平面透视系统（biplane fluoroscopy system）以100Hz的采样频率采集肱骨与肩胛骨的影像。基于每名受试者的计算机断层扫描（CT scan）结果，构建肱骨与肩胛骨的三维模型。基于模型的无标记跟踪（model-based markerless tracking）技术通过将数字重建放射影像（digitally reconstructed radiographs）与双平面透视录制的每一帧影像进行半自动对齐，确定每块骨骼模型的三维位置与姿态。躯干的运动学数据则通过皮肤标记运动捕捉（skin marker motion capture）系统采集得到。