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Connected Health Care


Digital Twins in Health Already Helping in Disease Treatment

Digital twins in health care have matured to replicate even rare diseases such as heart conditions or COVID-19-related impact. Are these digital replicas ready for prime time?
  • Written by Lauren Horwitz
  • 11th March 2021
  • Digital twins in health care have developed to provide replicas of various health conditions, such as heart disease or even COVID-19 lung impact.
  • New developments have enabled digital twins in health to provide what-if problem solving for rare health conditions without having deleterious effects on patients.
  • Digital twins do pose potential big data challenges, but practitioners are working toward more targeted digital twin models.

Digital twins in health care have begun to help practitioners understand patient conditions, even novel ones such as COVID-19’s impact on the lungs.

A digital twin is a virtual representation of a physical object or system across its life cycle. It uses real-time data and other sources to enable learning and dynamic recalibration for improved decision-making as processes unfold. This highly complex digital model is a counterpart, or twin, of a physical thing, such as a car, a piece of equipment or a person.

Previously, digital twin technology was the province of product design, helping improve products before they were manufactured in the real world. But today digital twin technology has made its way into personalized care.

But today, digital twin technology is gathering momentum in health care diagnosis. Digital twins are upending traditional health care by modeling conditions and attributes of a particular patient using machine learning data aggregated from a variety of patients. Digital twins have now helped practitioners understand a variety of diseases, from heart anomalies to the impact of COVID-19.

“Just as this year has driven data collection, this has everything to do with digital twins. Biometrics have been accelerants, as well as a shifting regulatory environment,” said Kaleido Insights analyst Jessica Groopman.

Data suggests that digital twins in health is on a growth trajectory.

The  global digital twin market was projected to be worth $5.1 billion in 2020 and $115.1 billion by 2035, growing at an estimated compound annual growth rate of 23%, according to ResearchandMarkets. Further, for companies implementing IoT projects, 18% have already implemented digital twins, and another 70% plan to implement within 12 months, according to a Gartner survey released in October 2020.

Digital Twin Technology in Health Provides Key What-If Analysis

For health care domains such as cardiology, digital twin technology has been a boon to better treat congenital heart defects.

“If we can understand how it works in the normal configuration, why can’t we understand how it would work in reverse configuration?” said Steve Levine, founder of the Living Heart Project at Dassault Systèmes.

“If we could take the normal heart and change it the way nature would change it, the changes that happen to the human body are not unpredictable.”

With digital twin technology, the project can replicate rare heart conditions, such as valves that are reversed from those of a healthy heart, and then, virtually, test certain treatments on that replica before administering anything to a patient.

“We can guide the treatment and base it on testing to see what will work best on the virtual patient before they actually try it on the real patient,” Levine said.

Solving Patient Data Challenges With Digital Twins

One critique of digital twins, and machine learning for health care, has been that it’s labor-intensive to train the data models with enough data to understand health conditions such as cancer, diabetes and heart disease. In the early days of developing these models, many health care professionals tried to feed the models with as much data as possible.

Traditionally, these methods have been computationally intensive, but they have progressed.

Today  the goal is not to feed models as much data as possibl, but to provide targeted data that fuels “precision models.” This enables digital twins to solve the problem at hand.

This approach has allowed the Living Heart Project to develop targeted digital twins “templates” of healthy hearts as well as digital twins for hearts affected by certain conditions.

“The smaller you divide the data, the more coherent it’s likely to be, and then you can understand it,” Levine said. “It takes more discipline to do it piece by piece versus trying to solve the whole problem all in one go.”

Another key concern is how to secure personalized patient data. Digital twins can help in this regard by masking attributes.

The digital twin project focuses on aggregating patient data to remove individual attributes. Data is shared on an open source platform, which enables myriad researchers to access the data but also protects patient identity.

“We ensure that the data stays de-identified in the early days,” Levine said. “By translating real data into virtual data, the identity is pretty much gone. You as a digital version of yourself, so you can be recognized.”

Still, though, Levine said that data platforms have to be extremely careful with the raw source data to avoid breaching patient privacy.

Using Digital Twins to Understand COVID-19 Impact

The digital twin models that the project has developed can apply in a variety of contexts, Levine explained. The project has now focused on using digital twins to help practitioners treat patients affected with COVID-19.

Digital twins, for example, have helped health care pros understand why a respirator may be more beneficial for one patient over another or how to understand so-called long-hauler syndrome, in which patients continue to feel the deleterious effects of the virus for months.

“We can better understand how to tune the treatment based on an individual’s physical state; right now of course each doctor has to figure it out on their own because this is a new condition,” Levine said.

Digital Twins in Health Bringing More Holistic Patient Care

Ultimately, digital twins in health care not only enables what-if problem-solving virtually but also helps break down long-standing silos between medical disciplines.

“We all know that when you go talk to one doctor, they tell you about one part of you and then you talk to another doctor and they care nothing about what that doctor said,” Levine noted. “But the body doesn’t work that way. All of my systems interact with one another.”

By using digital twins as a digital record of a patient, Levine said, these digitized snapshots of patient health can bring siloed data together to provide better care.

“My hope is that we can stop thinking about people as a collection of pieces [and start] seeing and treating the body holistically,” Levine said. “Bringing together all these pieces is what the average doctor can’t do.”

Ultimately, experts say, digital twins are just another manifestation of the increased role of analytics and biometrics in health care – a trend that is only going to gather momentum.

“We’re seeing more and more digital twins in health care, improving operations and personalized care,” Kaleido Insights’ Groopman said. “The focus is on using digital twins to create efficiency and improvement.”

 

 

Tags: Digital twins Edge computing Connected Health Care Technologies

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