ty images at lower radiation doses, which limits scatter and exposure
risks to staff and physicians.
The intensity of scatter radiation is much less than that of the beam
that enters the patient. For example, the dose rate going into a patient
undergoing an abdominal fluoroscopy is about 20 millisieverts per
minute, but the dose rate 1 foot away from where the beam is travers-
ing the body laterally — about the distance where somebody would
be standing next to surgical table — is about .3 millisieverts per hour.
That's a reduction by a factor of 60 from the patient's dose. Using the
Inverse Square Law, if your exposure is .3 millisieverts at 1 foot, you
can reduce that exposure by 75% simply by standing 2 feet away and
by 89% if you stand 3 feet away.
O C T O B E R 2 0 1 9 • O U T PA T I E N T S U R G E R Y. N E T • 1 5
viscotcs@viscot.com • www.viscot.com • 800.221.0658
Accu-mark
™
Improve fluoroscopy
guided injections with...
see it in action: w w w . b i t . l y / a c c u - m a r k e r
"I can mark the patient faster than any
other method... Easy to use."
- Musculoskeletal Radiologist, FL
Clearly visible under x-ray
Clearly marks injection sites
Radiopaque Site Marker
