Development and placement accuracy evaluation of an MR conditional robot for prostate intervention

2021 ◽  
Author(s):  
Yuyang Lin ◽  
Yunlai Shi ◽  
Fugang Wang ◽  
Jun Zhang ◽  
Haichao Sun ◽  
...  
Keyword(s):  
Accuracy Evaluation ◽  
Mr Conditional ◽  
Placement Accuracy

Delivery of Low Basal Rates in Different Insulin Pumps—An Accuracy Evaluation

Diabetes ◽  
2018 ◽  
Vol 67 (Supplement 1) ◽  
pp. 972-P
Author(s):  
RALPH ZIEGLER ◽  
ULRIKE KAMECKE ◽  
DELIA WALDENMAIER ◽  
CORNELIA HAUG ◽  
GUIDO FRECKMANN
Keyword(s):  
Accuracy Evaluation ◽  
Insulin Pumps

Augmented reality–assisted pedicle screw insertion: a cadaveric proof-of-concept study

2019 ◽  
Vol 31 (1) ◽  
pp. 139-146 ◽  
Author(s):  
Camilo A. Molina ◽  
Nicholas Theodore ◽  
A. Karim Ahmed ◽  
Erick M. Westbroek ◽  
Yigal Mirovsky ◽  
...  
Keyword(s):  
Augmented Reality ◽  
Pedicle Screw ◽  
User Experience ◽  
Pedicle Screws ◽  
Screw Insertion ◽  
Pedicle Screw Insertion ◽  
Insertion Method ◽  
Comparative Accuracy ◽  
Placement Accuracy ◽  
Surgical Field

OBJECTIVEAugmented reality (AR) is a novel technology that has the potential to increase the technical feasibility, accuracy, and safety of conventional manual and robotic computer-navigated pedicle insertion methods. Visual data are directly projected to the operator’s retina and overlaid onto the surgical field, thereby removing the requirement to shift attention to a remote display. The objective of this study was to assess the comparative accuracy of AR-assisted pedicle screw insertion in comparison to conventional pedicle screw insertion methods.METHODSFive cadaveric male torsos were instrumented bilaterally from T6 to L5 for a total of 120 inserted pedicle screws. Postprocedural CT scans were obtained, and screw insertion accuracy was graded by 2 independent neuroradiologists using both the Gertzbein scale (GS) and a combination of that scale and the Heary classification, referred to in this paper as the Heary-Gertzbein scale (HGS). Non-inferiority analysis was performed, comparing the accuracy to freehand, manual computer-navigated, and robotics-assisted computer-navigated insertion accuracy rates reported in the literature. User experience analysis was conducted via a user experience questionnaire filled out by operators after the procedures.RESULTSThe overall screw placement accuracy achieved with the AR system was 96.7% based on the HGS and 94.6% based on the GS. Insertion accuracy was non-inferior to accuracy reported for manual computer-navigated pedicle insertion based on both the GS and the HGS scores. When compared to accuracy reported for robotics-assisted computer-navigated insertion, accuracy achieved with the AR system was found to be non-inferior when assessed with the GS, but superior when assessed with the HGS. Last, accuracy results achieved with the AR system were found to be superior to results obtained with freehand insertion based on both the HGS and the GS scores. Accuracy results were not found to be inferior in any comparison. User experience analysis yielded “excellent” usability classification.CONCLUSIONSAR-assisted pedicle screw insertion is a technically feasible and accurate insertion method.

ACCURACY EVALUATION OF MEASUREMENT WITH LASER SCANNER EQUIPPED UAV FOR EARTHWORKS CONSTRUCTION MANAGEMENT

2018 ◽  
Vol 74 (2) ◽  
pp. II_125-II_135
Author(s):  
Shigenori TANAKA ◽  
Satoshi KUBOTA ◽  
Ryuichi IMAI ◽  
Kenji NAKAMURA ◽  
Yuhei YAMAMOTO ◽  
...  
Keyword(s):  
Construction Management ◽  
Laser Scanner ◽  
Accuracy Evaluation
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