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Fig. 4 | BMC Anesthesiology

Fig. 4

From: Comparison of accuracy between augmented reality/mixed reality techniques and conventional techniques for epidural anesthesia using a practice phantom model kit

Fig. 4

Distribution of puncture and puncture angles in Test 1. (a) Surface puncture point distribution for each group in Test 1. The dots indicate the puncture points punctured by the MSs. The X marks indicate the ideal surface puncture points. The blue line indicates the ideal epidural needle. (b) Puncture angles for each group in Test 1. The blue line indicates the ideal epidural needle puncture angle. The red line indicates the penetration angle of the epidural needle inserted by MSs. AR(-)_test1 has a variation in puncture angle, while AR(+)_test1 and SemiAR_test1 have a uniform angle close to that of the ideal needle model. (c) Distribution of puncture points in the epidural space for each group in Test 1. The dots indicate the epidural space puncture points punctured by MSs. The X marks indicate the ideal epidural puncture points

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BMC Anesthesiology

ISSN: 1471-2253

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