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Related Concept Videos

Local Anesthetics: Clinical Application as Epidural Anesthesia01:29

Local Anesthetics: Clinical Application as Epidural Anesthesia

522
Epidural anesthetics are administered in the fat-filled epidural space, the outermost part of the spinal canal. This technique is commonly employed for pain management and anesthesia during lower abdomen and pelvis surgeries or labor and delivery.
Since epidural anesthetics can be infused through an epidural catheter, all types of drugs, including short-acting ones, can be administered. Chloroprocaine and lidocaine are examples of short and long-duration anesthetics, respectively. Bupivacaine...
522

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Related Experiment Video

Updated: Oct 10, 2025

Pedicle Screw Placement Using an Augmented Reality Head-Mounted Display in a Porcine Model
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Augmented Reality Assisted Surgical Navigation System for Epidural Needle Intervention.

Sunghwan Lim, Junhyoung Ha, Seongmin Yoon

    Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference
    |December 11, 2021
    PubMed
    Summary

    This study introduces an augmented reality (AR) surgical navigation system for epidural needle placement. The AR system significantly reduces procedure time and X-ray exposure compared to conventional methods.

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    Area of Science:

    • Medical Imaging
    • Surgical Navigation
    • Augmented Reality

    Background:

    • Epidural needle interventions traditionally rely on fluoroscopy, leading to significant radiation exposure.
    • Minimally invasive procedures require precise needle placement to ensure efficacy and patient safety.

    Purpose of the Study:

    • To develop and evaluate an augmented reality (AR)-assisted surgical navigation system for epidural needle intervention.
    • To assess the system's impact on procedure time, radiation exposure, and targeting accuracy.

    Main Methods:

    • A novel AR system integrating virtual reality surgical planning, patient/tool tracking, and a head-mounted display (HMD) was developed.
    • Preoperative CT scans were used for 3D path planning, registered intraoperatively using skin markers and real-time tracking.
    • System validation involved experiments with torso phantoms simulating respiration.

    Main Results:

    • The AR-assisted method significantly reduced procedure time (43.6±20.55s vs. 124.5±46.7s) and X-ray usage (2.9±1.3 vs. 9.3±2.4 times) compared to fluoroscopy.
    • Average targeting errors were comparable between the AR system and the conventional approach.

    Conclusions:

    • The AR-assisted surgical navigation system offers a promising alternative for epidural needle interventions.
    • This technology has the potential to substantially decrease ionizing radiation exposure for both patients and healthcare professionals.