What is the minimum focal spot-to-table distance required in mobile fluoroscopy?

The minimum focal spot-to-table distance required in mobile fluoroscopy is established to reduce the patient's and operator's exposure to radiation. A focal spot-to-table distance of 30 cm is mandated to ensure that radiation is adequately dispersed and to minimize the dose to the skin surface. This distance helps to decrease the intensity of scattered radiation and enhances image quality while maintaining safety protocols.

Regulatory guidelines and standards have placed importance on this measurement, as closer distances could lead to higher radiation exposure for both the patient and the healthcare provider. By adhering to a minimum of 30 cm, the protocol helps ensure that radiation exposure remains as low as reasonably achievable (ALARA principle), thereby promoting effective radiation protection in fluoroscopic procedures.