What is adjusted based on the size and density of the patient in CT imaging?

In the context of CT imaging, the adjustment of mA, or milliampere, is critical as it directly influences the amount of X-ray radiation used during the scan. The mA setting is adjusted based on the size and density of the patient to ensure optimal image quality while minimizing patient radiation exposure.

For larger or denser patients, a higher mA may be required to penetrate the tissue adequately and achieve a clear image. Conversely, for smaller or less dense patients, a lower mA can suffice. This adjustment is essential for maintaining a balance between image quality and safety, allowing technologists to provide the best diagnostic information without exposing patients to unnecessary radiation.

This understanding of mA's role in relation to patient size and density reinforces the importance of tailored imaging protocols in CT scans, enhancing both patient care and the quality of diagnostic assessments.