Sentara reduces plastic waste using bulk CT contrast

Patients having computed tomography (CT) scans often receive injections of contrast solution to enhance the images produced. Sentara Health operates 58 CT scanners at its 12 hospitals and imaging centers. 

The Sentara system performed more than half-a-million CT scans last year, and 218,000 of those used contrast. The widespread use of single-use syringes to administer contrast solution creates tons of plastic waste and disposal costs topping $2.3 million per year.

Through its system-wide sustainability initiative, the Sentara Supply Chain, Imaging and Sustainability teams are collaborating to reduce plastic waste by converting 53 compatible machines to GE Healthcare’s bulk contrast injectors. The conversion began in March with a late July completion date.

The estimated annual reduction in plastic waste going to landfills by using bulk contrast injectors is 78,000 pounds, with an estimated saving of $875,000 in disposal costs. 

“This is what we can achieve when we collaborate across divisions toward a shared goal,” said Lisa Darger, director of sustainability for Sentara. “Our system goal is to reduce our carbon footprint by using best practices and reducing solid waste, and this is one example of how that process can work.”

One scan can use up to 100cc’s of contrast, which is all a single-use injector holds. Bulk bottles contain 500cc’s of solution, which means one bottle can serve multiple scans before it is thrown away. With the new system, the only plastic to dispose of after a scan is a single piece of IV tubing.

The conversion to bulk injectors came about after a study by Sentara Supply Chain of current practices and costs, and potential savings by converting. The up-front investment is expected to be offset by annual savings in single-use syringe purchases and disposal costs. 

There is also a patient and employee benefit in reduced time per scan, meaning patients will spend a little less time on the machines, and technical teams producing scans can operate more efficiently.

“This transition goes beyond sustainability. It’s about redefining how we deliver healthcare,” said Alfredo Lopez, director of imaging services for Sentara. “Bulk contrast injectors are helping us create a more efficient, patient-centered approach to care, while Sentara champions environmental responsibility.”