Which of the following factors mainly determines the image quality in radiography?

The relationship between kilovoltage peak (kVp), milliamperage (mA), and exposure time plays a critical role in determining the image quality in radiography. KVp affects the penetration power of the x-ray beam, influencing contrast and the overall exposure of the image. Higher kVp values result in greater x-ray penetration, which can enhance the visibility of structures in the image but may reduce contrast. On the other hand, mA controls the amount of radiation produced per unit of time, affecting the image's density. Increasing exposure time also contributes to the amount of radiation reaching the film or detector, impacting the overall image quality.

Balancing these three factors is essential to optimize image quality; if they are not correctly adjusted, the resulting image could suffer from poor contrast or excessive noise. This interplay is fundamental to achieving diagnostic-quality images, as it allows radiographers to tailor the exposure settings to the patient’s specific anatomy and clinical indication, ensuring that the best possible image is produced while minimizing patient exposure to radiation.

Other factors, while important, do not have the same direct impact on the fundamental aspects of image quality as the interplay of kVp, mA, and exposure time. For instance, patient demographics may influence certain imaging considerations