X-rays are a form of high-energy electromagnetic radiation that can pass through most objects, including the human body.
Medical Use: Commonly used to view bones, detect fractures, locate foreign objects, and diagnose conditions like pneumonia or dental issues.
How It Works: X-rays pass through the body and are absorbed at different rates by different tissues. Dense materials like bone absorb more X-rays and appear white on the image, while softer tissues appear darker.
MRI, or Magnetic Resonance Imaging, is a non-invasive medical imaging technique that uses powerful magnets and radio waves to produce detailed images of the inside of the body.
Purpose: To visualize internal organs, tissues, and structures without using ionizing radiation (unlike X-rays or CT scans).
Technology: Uses a strong magnetic field and radio waves to align hydrogen atoms in the body, then detects the signals they emit to create images.
A CT scan (Computed Tomography scan), also known as a CAT scan, is a powerful diagnostic imaging tool that combines X-rays with computer technology to produce detailed cross-sectional images of the body.
Purpose: To visualize internal organs, bones, blood vessels, and soft tissues in high detail.
Technology: A motorized X-ray source rotates around the body, capturing images from multiple angles. These are then compiled by a computer into 3D images.
Ultrasound, also known as sonography, is a versatile and noninvasive imaging technique that uses high-frequency sound waves to create real-time images of the inside of the body.
Purpose: To visualize soft tissues, organs, and blood flow without using radiation.
Technology: A device called a transducer sends sound waves into the body. These waves bounce off internal structures and are converted into images on a screen.
A mammogram is a specialized X-ray of the breast used primarily to detect and diagnose breast cancer. It’s one of the most effective tools for early detection, often identifying abnormalities before symptoms appear.
Purpose: To screen for or diagnose breast cancer.
Technology: Uses low-dose X-rays to capture images of breast tissue.
A DEXA, or DXA, scan (Dual-energy X-ray Absorptiometry) is a medical imaging test that utilizes low-dose X-rays to assess bone mineral density (BMD) and evaluate body composition. This advanced scan goes beyond just providing images of your bones, offering crucial insights into their strength and quality.
