Imaging techniques are non-invasive methods that provide visual representations of the inside of the body. For example, X-rays use radiation to capture images of bones and certain tissues, while MRI (Magnetic Resonance Imaging) uses magnetic fields and radio waves to produce detailed images of soft tissues. CT scans (Computed Tomography) combine multiple X-ray images to create cross-sectional views of the body. PET scans (Positron Emission Tomography) involve injecting a small amount of radioactive material to highlight areas of high metabolic activity, which can indicate cancer.
