Why is it important to frequently calibrate CT machines?

Frequent calibration of CT machines is crucial to ensure consistency, accuracy of measurements, and optimal image quality. Over time, various components of a CT scanner can drift or become less precise due to mechanical wear, electronic changes, or environmental factors. Calibration helps to adjust for these deviations, ensuring that the CT images produced are reliable and accurately represent the anatomy being scanned.

Maintaining optimal image quality is essential not only for diagnostic purposes but also for reducing the likelihood of misdiagnosis or the need for repeat scans, which can further expose patients to unnecessary radiation. Calibration verifies that the machine is functioning within its intended parameters and that imaging protocols yield the best possible images for interpretation by radiologists. This regular maintenance is a key aspect of quality control in medical imaging, facilitating proper patient care and effective utilization of the technology.