Software for processing satellite pictures taken from space is now helping medical researchers to establish a simple method for wide-scale screening for Alzheimer’s disease.

Used in analysing magnetic resonance images (MRIs), the AlzTools 3D Slicer tool was produced by computer scientists at Spain’s Elecnor Deimos, who drew on years of experience developing software for ESA’s Envisat satellite to create a program that adapted the space routines to analyse human brain scans.

“If you have a space image and you have to select part of an image – a field or crops – you need special routines to extract the information,” explained Carlos Fernández de la Peña of Deimos. “Is this pixel a field, or a road?”

Working for ESA, the team gained experience in processing raw satellite image data by using sophisticated software routines, then homing in on and identifying specific elements.

“Looking at and analysing satellite images can be compared to what medical doctors have to do to understand scans like MRIs,” explained Mr Fernández de la Peña.

“They also need to identify features indicating malfunctions according to specific characteristics.”

Adapting the techniques for analysing complicated space images to an application for medical scientists researching into the Alzheimer disease required close collaboration between Deimos and specialists from the Technical University of Madrid.

The tool is now used for Alzheimer’s research at the Medicine Faculty at the University of Castilla La Mancha in Albacete in Spain.

Space helping medical research

“We work closely with Spanish industry and also with Elecnor Deimos though ProEspacio, the Spanish Association of Space Sector Companies, to support the spin-off of space technologies like this one,” said Richard Seddon from Tecnalia, the technology broker for Spain for ESA’s Technology Transfer Programme.

“Even if being developed for specific applications, we often see that space technologies turn out to provide innovative and intelligent solutions to problems in non-space sectors, such as this one.

“It is incredible to see that the experience and technologies gained from analysing satellite images can help doctors to understand Alzheimer’s disease.”

Using AlzTools, Deimos scientists work with raw data from a brain scan rather than satellite images. Instead of a field or a road in a satellite image, they look at brain areas like the hippocampus, where atrophy is associated with Alzheimer’s.

In both cases, notes Mr Fernández de la Peña, “You have a tonne of data you have to make sense of.”


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