Small investments in imaging ergonomics yield major gains

By Cathy Filgas

Today's radiologists working in a PACS environment are required to interpret more studies than ever before. With technological developments proceeding at warp speed, cranking out more work should be a cinch. Right? Not necessarily.

"Radiologists are working at an intense pace, often for long periods, at workstations that are not set up specifically for them," said Cindy Burt, ergonomics program manager at the University of California, Los Angeles. "Unless they pay attention to ergonomics, which means working in a safe, efficient, relaxed manner, their productivity will suffer and repetitive strain injuries will increase."

Many larger medical facilities offer ergonomic training and assessments to help employees use the right tools in the right way. However, for those who don't have access to a specialist, or want to tweak their own workstations, here are some pointers from experienced PACS administrators:

  • Who has the crystal ball? "I started on this pretty early, before PACS were the rage, so our reading room didn't easily accommodate the new technology," said Rick Neumann, IT manager at MultiCare Health in Tacoma, WA. "It would have been a more flexible space if there had been less built-in casework and more freestanding workstations." Then just when you think you have it figured out, new technology will send you back to the drawing board.
  • The tall and short of it. A perfect fit for one employee may be a dangerous misfit for another. Computers and biomedical hardware that is shared by employees of various heights should be supported on adjustable-height components. Employees can then easily raise or lower the monitor, keyboard, or mouse into a comfortable position, and sit or stand while working.
  • The art of cockpit design. "We have to start 'thinking out of that reading room box,'" said Leslie Beidleman, PACS administrator at St. Vincent Hospital in Toledo, OH.  "We're constantly experimenting, changing, evolving, and improving our workstations so that they're comfortable and functional." Put frequently used items front and center; favor surfaces that retract, adjust, or swing out to reduce awkward movements and postures.
  • Perfect posture. Chairs should have a backrest, swivel base, and rolling castors, and also offer height adjustment for the seat and back (If raising the height lifts feet off the floor, add a footrest). Employees must be trained to make use of the adjustment points on their chairs and workstations. "Much ergonomic furniture design is un-intuitive, with so many bells and whistles that people can't figure it out," Burt said. "E-mail short instructions or put up simple signs: 'This tabletop adjusts -- press the button here.'"
  • Exercise in place. Good posture isn't a panacea, though, especially if you sit in a fixed position for too long. "I always tell employees to remember the 20/20/20 rule. Every 20 minutes, stretch your body and look at a spot 20 feet way, for 20 seconds," advised Burt. "If everyone did that, it would go a long way toward preventing injury."
  • Report problems early. Encourage employees to call the organization's occupational health and safety program for assistance. "It's easy to resolve a problem when it first comes up. It's not so easy after a year," Burt said. An ergonomics expert can assess your workstations and departmental workflow, provide individual counseling or group training, and play a part in new employee orientation. "If you set people up well at the beginning, they tend not to get hurt," added Burt.
  • Light is a major headache. "Bright light, and the resulting glare and reflection, was a major problem for us," said Ric McGill, PACS application manager at UCLA Medical Center. "We couldn't go with standard Navajo white. We needed darker earth tones in a matte finish to absorb light." This is a good opportunity to involve the radiologists who will work in the room, added McGill, who solicited opinions on a pallet of 10 colors from his radiologists. Dark carpeting also helps absorb light.
  • Optimize secondary light. Your eyes will thank you for taking the time to find the furniture layout and monitor placement that reduces glare. "Our approach is to take everything out of a room, site the workstation, then put everything else back in," said Gary Woodruff, PACS administrator at Novato Community Hospital in Novato and Marin General Hospital in Marin County, both in California.

    "It's easy to experiment, especially with mobile carts and workstations," Woodruff said. "I tell doctors, 'Let's try this here. No? OK, then let's move it here.' Often it winds up where I knew it had to go in the first place. When radiologists and doctors help plan the room, they won't let anyone badmouth it later."

  • Keep safe and secure. "We use monitor arms that raise and lower for tall and short radiologists, but it wasn't easy to find one that supports 80 pounds," Neumann said. Shake computer stands vigorously to be sure they're stable enough to hold heavy hardware, especially if in motion. Mobile carts should have, at a minimum, firmly fastened castors that glide smoothly and lock securely, and safety straps to secure equipment.
  • Your brain needs oxygen. PACS reading rooms can get hot and stuffy quickly. For one thing, the computers throw off excessive heat. And ventilation is often inadequate in reading rooms. "The attitude used to be to 'plant radiologists in the room and throw film at them all day long.' But that doesn't work. Our experience shows that it's important to make sure radiologists are happy and comfortable. When we increased the air supply and controlled the temperature, everything improved," McGill said.
  • Keep the noise down. The sound level is up in reading rooms now that speech recognition systems, voice dictation, and telephone consults with physicians are widely used. It's important to counteract the trend in order to decrease distractions, and to protect patient confidentiality. Try using carpets, acoustical wall and ceiling panels, and room dividers to absorb sound. White noise machines can also help. Even so, it may be necessary to segregate the dictating areas altogether.
  • Outside the reading room. Workstations located in other areas of the hospital offer unique challenges when it comes to noise, lighting, and airflow. On the other hand, odd locations also provide an opportunity to innovate. "We recently tried something new in the operating room. We've mounted plasma screens on mobile workstations. Now the doctors can just look straight ahead and see the monitor from up to 20 feet away," Woodruff said. "We've also been experimenting with having doctors use an infrared remote mouse to view images. They can even tie in video images from their scoping procedures on the same split screen."
  • Think hard before building or remodeling. "I have experienced all levels of bad ergonomics in viewing rooms. For instance, I inherited a brand-new reading room with built-in counters at wheelchair height," Woodruff said. "That's mandated in California. But for most people, they were too high for sitting, and too low for standing. The cost of dismantling them was prohibitive, so we substituted freestanding carts. It cost $35,000 for four rooms of built-in countertops, versus $7,000 for the carts."
  • By Cathy Filgas
    AuntMinnie.com contributing writer
    May 21, 2003

    Cathy Filgas is a founding partner and vice-president of Anthro, a Portland-area manufacturer of furniture, including PACS tables and mobile imaging stations. Visit the group's Web site to download a detailed ergonomics checklist.

    Related Reading

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    Philips upgrades HDI 5000 ultrasound system, November 4, 2002

    A multimedia guide to ergonomic sonographer positioning, September 18, 2002

    Radiology workstations need integration, automation, March 15, 2002

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