---
title: "Computed Tomography (CT)"
fulltext_image: "https://www.yarraradiology.com.au/images/vdxradiology/reference-banner.png"
---

# Computed Tomography (CT)

![Computed Tomography (CT)](https://www.yarraradiology.com.au/images/vdxradiology/reference-banner.png)

## Method

 Computed tomography, better known as CT displays cross-sectional images of the body using X-Rays. CT scans have revolutionised modern medicine and diagnose the severity of tumours, inflammations, injuries or vascular diseases. Using high spatial resolution, CT scans can give clear insight and define prognosis.

 CT scans have become indispensable in medical practice, particularly looking at bony structures, e.g. the inner ear or the paranasal sinuses and to give a clear assessment of the lungs.

 
## What is CT used for?

 A [CT scan](https://www.yarraradiology.com.au/) is primarily used to give accurate assessment and clarification on the diseases listed below.

 In addition to diagnostic CT examinations, it is also possible to perform minimally invasive procedures using CT technologies.

 
- Diagnosing cerebral infarction, bleeding or tumours.
- Diagnosing the kidneys and urinary tract (kidney stones, ureteral stones, inflammation, tumours, bleeding, cysts).
- Insight into vessels, aneurysms (especially the aorta) or constrictions / occlusions.
- Examining the coronary arteries (cardio CT).
- Detecting tumours, metastases, embolisms and inflammation of the lung or gastrointestinal tract.
- Measuring bone density in osteoporosis (osteodensitometry).
- Assessing fractures, degenerative changes, herniated discs, tumours or metastases of the skeletal system.

 
## Why use CT over MRI?

 First and foremost, the duration of a CT examination is significantly shorter.

 CT is a great alternative for patients who cannot get an MRI for any reason. I.e, - people who wear pacemakers, those who are claustrophobic or those who have magnetisable metal implants in their bodies cannot have MRIs.

 CT also gives a clearer representation of:

 
- acute intracranial bleeding
- vessel walls
- the bony structures, e.g. inner ear, cortical and cancellous bone structures
- the fine lung structure

 Why CT over conventional X-rays?

 
- CT gives a clearer display of different tissues and organs as it uses overlay-free sectional images with very high detail resolution.
- CT gives detailed reconstruction options.
- CT allows for virtual endoscopy, a medical procedure that allows a doctor to inspect and observe the inside of the body without performing major surgery.
- CT allows interventional measures, such as: pain therapy, tissue sampling, drainage, punctures.

 
## CT Angiography

 Angiography is an imaging test that uses X-rays to view your body's blood vessels, veins and arteries. These examinations can assess the most diverse regions of the body. It is completely painless and not very invasive.

 This is mainly done via a catheter, which is inserted into the vascular system. All patients will undergo local anaesthesia for all angiography examinations.

  

   


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