17 Aug 2023

Earthquake engineering meets breast cancer screening

From Our Changing World, 5:00 am on 17 August 2023

Every year, more than 3,000 people are diagnosed with breast cancer, according to the Cancer Society. 

Eligible women aged between 45 and 69 can get free mammograms, but younger women must decide whether to fund the test themselves. 

Researchers might have found a cost-effective way to screen for breast cancer earlier than we do now. Their inspiration? Earthquake engineering. 

A man in a shirt and a woman in a blazer sit next to a large contraption with three holes in its surface.

Distinguished Professor Geoff Chase and Dr Jessica Fitzjohn from the University of Canterbury with the ergonomic prototype of their breast screening device. Photo: Katy Gosset / RNZ

Follow Our Changing World on Apple Podcasts, Spotify, Stitcher, iHeartRADIO, Google Podcasts, RadioPublic or wherever you listen to your podcasts 

"When you’re looking at the motion of buildings, you can identify the underlying ground tissue properties,” says Dr Jessica Fitzjohn from the University of Canterbury. “By looking at those vibrations, you can know what the soil properties are underneath.” 

So, why not apply that same concept to breast tissue? 

The team have developed a low-cost tool that applies a small vibration and analyses the resulting surface motion. Cancerous tissue is around 4-10 times stiffer than healthy tissue.  

The hope is that this device will give more New Zealand women early access to breast screening. 

Senior producer Katy Gosset pays a visit to the research team to find out more. 

To learn more: