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Magnetic resonance imaging (MRI) is a scanning procedure that uses strong magnets and radio-frequency pulses to generate images (or pictures) of the inside of your body. 

Computed tomography is commonly called ‘CT’.  CT is a way of using x-rays to take pictures or images in very fine slices through the part of the body that the doctor has asked to be investigated. One way to think of it is of taking slices through a loaf of bread, with more slices providing increasingly detailed images. The most recent machines are multi-slice (MSCT) scanners, producing up to 320 slices that are often less than 1mm thick.

Once the radiographer has taken the scan, these very thin slices can be put all together to reconstruct the loaf (or in this case your body). Once they are put back together the radiographer can cut it into the slices that will help the radiologist (a doctor who has specialised in diagnostic imaging) to see the parts of the body that are of interest.

With all of these different slices and 3D reconstructions, the radiologist will have a very detailed picture of the structures making up your body. This should help them to make a diagnosis so that the right treatment can be planned as soon as possible.

Interventional radiology is a medical specialisation that involves performing a range of imaging procedures to obtain images of the inside of the body. The interventional radiologist carefully interprets these images to diagnose injury and disease, and to perform a range of interventional medical procedures, including injections of corticosteroids, local anaesthetic or platelets.

Continuing advances in technology mean the range of conditions that can be treated by interventional radiology is continuing to expand.

An ultrasound examination is performed using a smooth, hand held device called a transducer (camera) that is move across the body with a sliding and rotating action. The transducer transmits the high-frequency sound waves into your body. The sound waves are then reflected from the different tissues in different ways. The sound waves are converted to electrical impulses, which are used to produce a moving image onto the screen.