研究机器视觉和增强现实的准确性在皮肤间计算机断层扫描指导的干预:一个幻象研究
Bingyu Huang1,2, Yizhi Wei3, Bing Zhang1,2
1Department of Interventional Radiology, The First Affiliated Hospital, Fujian Medical University, Fuzhou, China.
Journal of cancer research and therapeutics
|August 29, 2024
概括
这项研究表明,增强现实和机器视觉增强了计算机断层扫描 (CT) 引导的穿孔精度. 该系统显示了在医疗程序中精确导航的潜力.
科学领域:
- 医学成像和干预性放射学
- 计算机辅助手术 计算机辅助手术
- 机器人在医学中的机器人
背景情况:
- 穿皮计算机断层扫描 (CT) 引导的穿刺是一种关键的微创手术.
- 精确的针头放置对于有效的治疗和尽量减少并发症至关重要.
- 现有的导航方法在实时指导和准确性方面可能存在局限性.
研究的目的:
- 为了评估一种新的穿皮CT指导穿孔系统的准确性.
- 评估用于穿孔导航的机器视觉和增强现实 (AR) 的性能.
- 在幻影模型中使用各种指标量化穿孔精度.
主要方法:
- 建立了一个手术空间坐标系统,对准确的注册进行了层次优化.
- 机器视觉跟踪和AR显示技术用于实时穿孔导航.
- CT成像用于规划和评估不同长度 (短,中,长) 的穿孔路径到幻影中的目标,测量目标定位误差 (TPE),横向误差 (LE),角度误差 (AE) 和首次成功率 (FSR).
主要成果:
- 该系统在不同的穿孔距离上实现了不同程度的精度.
- 对于短距离 (4.5-5.5厘米),TPE为1.90 ± 0.62毫米,LE为1.23 ± 0.70毫米,AE为1.39 ± 0.86°,FSR为60%.对于短距离 (4.5-5.5厘米),TPE为1.90 ± 0.62毫米,LE为1.23 ± 0.70毫米,AE为1.39 ± 0.86°,FSR为60%
- 准确度指标显示,成功率下降的趋势和更长的穿孔距离的错误增加,长距离 (14.5-15.5厘米) 的FSR为30%.
结论:
- 基于AR和机器视觉的CT指导穿孔导航系统展示了在幻影设置中精确穿孔的能力.
- 系统的准确性受到穿孔距离的影响,有改进的潜力.
- 需要进一步的研究来研究这种导航系统在人类患者中的临床适用性和有效性.
相关概念视频
Computed Tomography
4.4K
Tomography refers to imaging by sections. Computed tomography (CT) is a non-invasive imaging technique that uses computers to analyze several cross-sectional X-rays to reveal minute details about structures in the body.
The technique was invented in the 1970s and is based on the principle that as X-rays pass through the body, they are absorbed or reflected at different levels. In the technique, a patient lies on a motorized platform while a computerized axial tomography (CAT) scanner rotates...
The technique was invented in the 1970s and is based on the principle that as X-rays pass through the body, they are absorbed or reflected at different levels. In the technique, a patient lies on a motorized platform while a computerized axial tomography (CAT) scanner rotates...
4.4K
Ultrasonography
4.4K
Ultrasonography is an imaging technique that uses high-frequency sound waves to visualize the body's internal structures. It is a non-invasive and safe procedure that does not involve the use of ionizing radiation, making it widely used in various medical fields. Ultrasonography is used to study heart function, blood flow in the neck or extremities, certain conditions such as gallbladder disease, and fetal growth and development.
During an ultrasonography procedure, a handheld device called...
During an ultrasonography procedure, a handheld device called...
4.4K


