Medical Imaging

This technology cannot be used on someone with metal in their body.

• MRI

• EEG

• CT scan

• X-ray

What is a CAT scan?

• A scan for you cat

• Catalysed Anatomical Scanning - an X-Ray that detects higher rates of metabolic reactions

• Complete Arterial Topography - multiple X-Rays that take 3D images of the body's arterial topography

• Computerised Axial Tomography - multiple X-Ray images that can be combined to give 3D images

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What would you need if you had to have an X-Ray of the soft tissue in your colon?

• CT Scan

• Barium Meal

• Colonic irrigation

• You would use a Gamma Camera

What atom in the human body is targeted by Magnetic Resonance Imaging?

• Sodium

• Potassium

• Hydrogen

• Oxygen

What is used to excite the nucleus of the hydrogen atoms in MRI?

• A feather duster to tickle them with.

• Ultrasonic waves.

• Radiofrequency pulses.

• Infrared pulses.

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In PET scanning, the isotope produces what type of radiation

• a neutron

• a positron

• an electron

• an x-ray

An X-ray works to create a medical image by:

• using sound waves to create images of the body's interior

• emitting electromagnetic radiation that passes through the body to create images

• using magnetic fields and radio waves to produce detailed images of organs and tissues

• injecting a radioactive substance into the body to highlight areas of interest

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An ultrasound works to create a medical image by:

• using high-frequency sound waves to produce images of structures within the body

• using X-rays to capture images of bones and tissues

• using magnetic fields and radio waves to generate images

• using radioactive substances to visualize organs

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An endoscopy works to create a medical image by:

• using sound waves to create images of the inside of the body

• using a magnetic field and radio waves to create detailed images

• inserting a flexible tube with a camera into the body to view internal organs

• using X-rays to create images of the inside of the body

The main difference between an ultrasound and an X-ray is:

• Ultrasound uses sound waves, while X-ray uses radiation.

• Ultrasound is more expensive than X-ray.

• Ultrasound is used for bones, while X-ray is used for soft tissues.

• Ultrasound provides 3D images, while X-ray provides 2D images.

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