Imaging

Coronary CT angiography and plaque analysis

Coronary CT angiography can show plaque and narrowing in the arteries that supply the heart. When the examination is appropriate, the findings help the clinician make cardiovascular prevention more specific to your situation.

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Listed at Prague. The exact scope, preparation, clinician and price are confirmed with the team before booking.

Educational heart anatomy and artery cross-sections showing different amounts of plaque

At a glance

What this involves at Prague

Available at this clinic

Scope and price are confirmed with the team before booking. Where a published price exists for your clinic, it is shown on the programme or clinic page.

Method
Coronary CT angiography uses CT imaging and intravenous contrast; the selected analysis can quantify and characterize coronary plaque.

The exact test or procedure, preparation, clinician and price are agreed for your location before booking.

In detail

Why plaque and narrowing are different questions

Atherosclerotic plaque builds up within the artery wall. The amount and composition of plaque and the degree of narrowing describe different aspects of the finding. A vessel can contain plaque without a severe narrowing. In HLC care, this information is considered with cholesterol, blood pressure, smoking, diabetes, symptoms and family history.

What CT and additional analysis can show

CT angiography uses X-rays and an intravenous iodine-containing contrast agent to image the coronary arteries. An additional quantitative analysis, when ordered, can organize the findings by artery and describe plaque volume, calcified and non-calcified components, and narrowing. The radiological interpretation remains essential.

This is different from a coronary calcium score, which is a non-contrast CT measure of calcified plaque. Neither test predicts with certainty whether or when an individual will have a heart attack. The clinician chooses the examination that best answers the clinical question.

Before and during the examination

The team reviews kidney function, contrast reactions, medicines, possible pregnancy and heart rhythm. Heart-rate control or other preparation may be needed. During scanning you lie on the CT table, receive contrast through a vein and follow short breath-hold instructions. Follow the imaging centre’s preparation rather than changing medicines yourself.

How the findings guide prevention

The useful output is a clinical decision: whether prevention needs to be strengthened, a symptom requires further investigation or an existing plan should continue. The care team explains which findings are actionable, who will follow them and whether another test is needed. A routine scan is not the right route for sudden chest pain or other urgent symptoms.

Illustrative example

What a coronary plaque report separates

An illustrative example created to explain the report or care plan. Values and findings are fictional, are not personal results and are not treatment targets. Your report depends on the agreed service.

Illustrative example — fictional values, not a personal result, not a clinical target and not a normal range.

Example vessel-by-vessel summary

Example vessel-by-vessel summary
VesselWall findingEstimated narrowing
Anterior descending arteryMixed plaque20–30%
Circumflex arterySmall calcified plaque10–20%
Right coronary arteryNo plaque identified in this exampleNone identified

What the report describes

Illustrative report structure
MeasureIllustrative valueWhat it would indicate
LocationArtery and segmentThe report identifies where a finding is seen.
Plaque characteristicsVolume and calcified/non-calcified componentsPlaque burden and composition describe the wall finding.
NarrowingLuminal narrowing and image qualityAnatomical narrowing is interpreted with symptoms and any evidence about blood flow.

Questions people ask

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Listed at Prague. The exact scope, preparation, clinician and price are confirmed with the team before booking. Your choice of service and clinic is carried through to the next step.

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