Krammer Lorenz, Hostettler Rafael, Wetzel Stephan
University of Basel, Basel, Switzerland.
Robotics and Embedded Systems, Technical University Munich, Munich, Germany.
J Vasc Interv Radiol. 2023 Oct;34(10):1809-1814. doi: 10.1016/j.jvir.2023.06.036. Epub 2023 Jul 3.
Free-hand computed tomography (CT)-guided interventions are common in interventional radiology. Their accuracy and technical success are highly dependent on the skill and experience of the performing interventionalist. This study evaluates a new, patient-mounted navigation device, which aims to facilitate percutaneous interventions-the Access Cube (AC). Sixty punctures were performed on 2 phantoms (rigid vs nonrigid) comparing the Free-Hand Method (FHM) to the AC on measures of accuracy, time, and the need for intraprocedural scans. Using the AC, punctures were significantly more accurate (3.8 mm ± 1.3 mm vs FHM 6.7 mm ± 4.5 mm, P = .004), significantly faster (263.1 s ± 84.4 s vs FHM 411.2 s ± 141.0 s, P < .001) and needed significantly fewer intraprocedural scans (1.4 ± 0.6 vs FHM 2.8 ± 0.4, P < .001). The AC may enable interventionalists to perform faster and more accurate punctures in a clinical setting.
徒手计算机断层扫描（CT）引导下的介入操作在介入放射学中很常见。其准确性和技术成功率高度依赖于实施介入操作的医生的技能和经验。本研究评估了一种新型的患者安装式导航设备——接入立方体（AC），其旨在促进经皮介入操作。在2个模型（刚性与非刚性）上进行了60次穿刺，比较了徒手方法（FHM）和AC在准确性、时间以及术中扫描需求方面的指标。使用AC时，穿刺明显更准确（3.8毫米±1.3毫米，而FHM为6.7毫米±4.5毫米，P = .004），明显更快（263.1秒±84.4秒，而FHM为411.2秒±141.0秒，P < .001），且术中扫描需求明显更少（1.4±0.6，而FHM为2.8±0.4，P < .001）。AC可能使介入医生在临床环境中能够更快、更准确地进行穿刺。
