During image intensified fluoroscopy, what is the typical range for tube currents?

In image intensified fluoroscopy, the typical range for tube currents falls between 0.5 and 5 mA. This range is optimal for achieving a balance between image quality and patient exposure to radiation.

Image intensified fluoroscopy systems are designed to enhance the visibility of images in real-time while minimizing the radiation dose received by the patient. The lower tube current settings help ensure that the radiation exposure remains as low as reasonably achievable (ALARA) while still providing adequate images for diagnostic purposes.

Higher tube current levels, such as those found in standard radiography, are unnecessary in fluoroscopic procedures because image intensifiers significantly amplify the received signals, allowing for high-quality imaging even at these reduced exposure levels. This principle is fundamental in maintaining patient safety and optimizing the use of fluoroscopic technology.