AudiologyOnline Phone: 800-753-2160
Lantos Break the Mold - June 2019

How Does the Lantos 3D Scanning System Work?

Lydia Gregoret, PhD, AuD

November 25, 2019

Share:

Question

How does the Lantos 3D Scanning System work?

Answer

If you're not familiar with Lantos, we make the only FDA-cleared 3D digital ear scanner. The system uses a membrane (Figure 1) that is central to the experiments we will discuss today. After loading the membrane and the solution into the scanner, you place the membrane and the camera down the ear canal. There's a clear window at the end of the membrane so you can see exactly where you're going when maneuvering the camera. On the screen, there is a yellow circle that allows you to align the annulus of the tympanic membrane (TM) to that circle, sort of like a distance gauge to indicate when you're about four to five millimeters away from the TM. 

Figure 1. Membrane and camera in the ear canal.

Once you've reached the correct depth with the camera, the membrane gently inflates with a red water-based solution, and then the camera retracts. The camera emits a blue light that makes the inside of the membrane glow yellow. It glows yellow because the membrane is fluorescent, and the combination of that yellow light coming back to the camera and the red solution the light passes through lets the scanner measure the distance from the camera tip to the inside surface of the membrane that's right up next to the surface of the ear. As you scan, you move the camera first around the concha, and then down the ear canal. The software then converts the 2D images to 3D and stitches them together, by a process similar to taking a panoramic photo but in 3D (Figure 2).

Figure 2. A collection of images like the one on the left are converted from 2D to 3D and stitched together into the complete scan.

The scanning process is shown in the following video; the person speaking is Erin Henry, our Director of Training.

This Ask the Expert is an excerpt from The Movin' Groovin' Outer Ear. Learn more on the Lantos Technologies Partner Page on AudiologyOnline or visit www.lantostechnologies.com


lydia gregoret

Lydia Gregoret, PhD, AuD

Lydia Gregoret is a chemist/biochemist-turned-audiologist. At Lantos Technologies, she combines her creativity, research training, chemistry skills and clinical audiology experience to help advance the world's first digital ear scanning system. Before coming to Lantos, Lydia was a clinical audiologist in Boston. Prior to that, she was a tenured faculty member at the University of California, Santa Cruz in Chemistry & Biochemistry. Lydia has also taught courses at Brandeis University and at Northeastern University. She received her PhD in Pharmaceutical Chemistry from the University of California, San Francisco, and her AuD from Northeastern University.


Related Courses

The Movin' Groovin' Outer Ear
Presented by Lydia Gregoret, PhD, AuD
Recorded Webinar
Lantos Technologies

Presenter

Lydia Gregoret, PhD, AuD
Course: #334671 Hour
  'It helps prevent impressions errors by silicone insertions'   Read Reviews
In this course, we’ll examine the outer ear’s compliance using data from direct ear scanning and CT scans. We’ll also discuss how compliance can inform hearing aid and earmold design and modification to create a comfortable fit.

View this Course for FREE.
Need CEUs? Become a AudiologyOnline member to get unlimited CEUs.

Only $99/yr

Learn More

Introduction to Lantos 3D Scanning
Presented by Erin Henry, AuD
Recorded Webinar
Lantos Technologies

Presenter

Erin Henry, AuD
Course: #334661 Hour
  'Provided a background for the new scanning procedures'   Read Reviews
In this course, we will examine the foundational aspects of scanning using the Lantos 3D Scanner. We’ll also discuss commonly asked questions regarding scanning, how data is collected, and which patient populations it can be used for.

View this Course for FREE.
Need CEUs? Become a AudiologyOnline member to get unlimited CEUs.

Only $99/yr

Learn More