Center for Interventional Oncology, Radiology and Imaging Sciences, Clinical Center, National Institutes of Health, Bethesda, MD, 20892, USA.
Biostatistics and Clinical Epidemiology Service, Clinical Center, National Institutes of Health, Bethesda, MD, 20892, USA.
Cardiovasc Intervent Radiol. 2021 May;44(5):774-781. doi: 10.1007/s00270-020-02760-7. Epub 2021 Jan 6.
To compare needle placement performance using an augmented reality (AR) navigation platform implemented on smartphone or smartglasses devices to that of CBCT-guided fluoroscopy in a phantom.
An AR application was developed to display a planned percutaneous needle trajectory on the smartphone (iPhone7) and smartglasses (HoloLens1) devices in real time. Two AR-guided needle placement systems and CBCT-guided fluoroscopy with navigation software (XperGuide, Philips) were compared using an anthropomorphic phantom (CIRS, Norfolk, VA). Six interventional radiologists each performed 18 independent needle placements using smartphone (n = 6), smartglasses (n = 6), and XperGuide (n = 6) guidance. Placement error was defined as the distance from the needle tip to the target center. Placement time was recorded. For XperGuide, dose-area product (DAP, mGy*cm) and fluoroscopy time (sec) were recorded. Statistical comparisons were made using a two-way repeated measures ANOVA.
The placement error using the smartphone, smartglasses, or XperGuide was similar (3.98 ± 1.68 mm, 5.18 ± 3.84 mm, 4.13 ± 2.38 mm, respectively, p = 0.11). Compared to CBCT-guided fluoroscopy, the smartphone and smartglasses reduced placement time by 38% (p = 0.02) and 55% (p = 0.001), respectively. The DAP for insertion using XperGuide was 3086 ± 2920 mGy*cm, and no intra-procedural radiation was required for augmented reality.
Smartphone- and smartglasses-based augmented reality reduced needle placement time and radiation exposure while maintaining placement accuracy compared to a clinically validated needle navigation platform.
比较基于智能手机或智能眼镜设备的增强现实（AR）导航平台与 CBCT 引导透视在体模中的针放置性能。
开发了一个 AR 应用程序，以实时在智能手机（iPhone7）和智能眼镜（HoloLens1）设备上显示计划的经皮针轨迹。使用人体模拟体模（CIRS，弗吉尼亚州诺福克）比较了两种 AR 引导针放置系统和具有导航软件的 CBCT 引导透视（XperGuide，飞利浦）。六位介入放射科医生分别使用智能手机（n=6）、智能眼镜（n=6）和 XperGuide（n=6）进行了 18 次独立的针放置。将放置误差定义为针尖到目标中心的距离。记录放置时间。对于 XperGuide，记录剂量面积乘积（DAP，mGy*cm）和透视时间（sec）。使用双向重复测量方差分析进行统计学比较。
使用智能手机、智能眼镜或 XperGuide 的放置误差相似（分别为 3.98±1.68 mm、5.18±3.84 mm 和 4.13±2.38 mm，p=0.11）。与 CBCT 引导透视相比，智能手机和智能眼镜分别将放置时间缩短了 38%（p=0.02）和 55%（p=0.001）。使用 XperGuide 进行插入的 DAP 为 3086±2920 mGy*cm，而增强现实不需要术中辐射。
与经过临床验证的针导航平台相比，基于智能手机和智能眼镜的增强现实减少了针放置时间和辐射暴露，同时保持了放置准确性。
