Final answer:
Road mapping is an advantage of digital imaging in fluoroscopy that aids in the placement of guidewires and catheters, reduces X-ray exposure to the patient, and provides more detailed images compared to traditional X-rays.
Step-by-step explanation:
Road mapping is an advantage of digital imaging in fluoroscopy. It involves keeping the most recent fluoroscopic image on the screen to aid in the placement of guidewires and catheters, and it reduces the need for continuous X-ray exposure to the patient. Unlike traditional X-rays, which provide a two-dimensional view of the body from a single angle, modern medical imaging technologies, like computed tomography (CT) scan, produce three-dimensional images or images that reveal aspects of body functioning.