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Optic Nerve Sheath Point of Care Ultrasound: Image Acquisition
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Three-Dimensional Imaging of Commonly Performed Peripheral Blocks: Using a Handheld Point-of-Care Ultrasound System.

Vendhan Ramanujam1, Lee Tian1, Clarence Chow1

  • 1The Department of Anesthesiology, the Warren Alpert Medical School, Brown University, Providence, Rhode Island, United States of America.

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Summary
This summary is machine-generated.

Handheld ultrasound devices can create 3D images of nerve blocks, aiding clinicians in precise needle placement and anesthetic delivery for improved patient outcomes.

Keywords:
Fascial Plane BlocksPeripheral Nerve BlocksPoint-of-Care UltrasoundThree-Dimensional Imaging

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Area of Science:

  • Medical Imaging
  • Anesthesiology
  • Ultrasound Technology

Background:

  • Handheld ultrasound devices offer affordability and portability, integrating with modern mobile technology.
  • These devices can generate three-dimensional (3D) images using standard two-dimensional (2D) ultrasound transducers.

Purpose of the Study:

  • To evaluate the feasibility of constructing 3D ultrasound images for peripheral nerve and fascial plane blocks.
  • Utilizing a handheld ultrasound device with a 2D probe for 3D image acquisition.

Main Methods:

  • Inclusion of 10 patients undergoing ultrasound-guided peripheral nerve blocks for outpatient surgery.
  • Exclusion of patients with anatomical variations identified during initial ultrasound scans.
  • Patients classified as American Society of Anesthesiologists physical status I or II with a BMI ≤ 30 kg/m².

Main Results:

  • Successful construction of 3D ultrasound images for 10 peripheral nerve blocks.
  • Average 3D scan acquisition time under 5 seconds per attempt; fascial plane blocks took longer.
  • All procedures resulted in effective postoperative analgesia without complications.

Conclusions:

  • 3D ultrasound images provide critical anatomical information regarding injectate spread.
  • Enhanced visualization aids in directing needle placement for accurate local anesthetic delivery.
  • Achieving visual confidence in anesthetic spread improves procedural safety and efficacy.