What is indicated when images appear wavy on a fluoroscopic exam?

When images appear wavy on a fluoroscopic exam, it is often indicative of artifacts caused by external magnetic fields. This phenomenon occurs because external magnetic interference can distort the magnetic fields within the imaging system, leading to visual distortions in the final images. These distortions may resemble waves or undulating patterns, which compromise the clarity and accuracy of the diagnostic images.

Understanding the impact of external factors, such as nearby electromagnetic devices or equipment, is key for maintaining optimal imaging quality. It reinforces the importance of controlling the environment where fluoroscopic procedures are performed to minimize these artifacts.

In contrast, high levels of exposure to radiation typically do not present as visual distortion in the images but rather as a concern for radiation safety and patient protection. Similarly, failure of the image processor would likely result in a complete loss of image or severe degradation rather than specifically wavy images. Lastly, poor patient preparation may affect the quality of the images, such as through motion artifacts or incorrect positioning, but would not specifically cause waviness in the appearance of the images.