Which aspect of fluoroscopy can increase the clarity of an image?

Increasing the milliampere (mA) enhances the clarity of a fluoroscopic image primarily by improving the density and contrast. When the mA is increased, more x-ray photons are produced, resulting in a higher quantity of radiation reaching the image receptor. This can lead to a more detailed and clearer image, which is especially beneficial in fluoroscopy where real-time imaging is crucial for accurate diagnosis and treatment.

In the context of the other choices, while decreasing the kVp can lower the photon energy and potentially affect image quality, it generally does not enhance clarity. Using a higher speed camera can lead to faster imaging but may not necessarily improve the clarity of the resulting images, as it depends more on exposure factors and the quality of the camera system. Adjusting the source-to-skin distance impacts the dose received by the patient and the geometric resolution of the image, but does not directly enhance the clarity of the image itself like increasing the mA does.