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Doctor insights on: Detecting Blocked Coronary Arteries

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What technology can detect blocked coronary arteries?

What technology can detect blocked coronary arteries?

Cardiac Cath: Still today, the most reliable means of demonstrating "blocked" arteries is cardiac catheterization otherwise known as angiography. Ct scan angiography when done in good hands and experienced centers, is also a reliable test, and if negative, makes it very unlikely that the person has significant disease. ...Read more

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Dr. John Landi
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Artery (Definition)

Arteries are defined as blood vessels which carry blood away from the heart (to either the body or lungs). Arteries: higher pressure, thicker walls, stretch (pulse) with each heart contraction & deliver blood to the arterioles which control the flow to individual capillaries. Veins are blood vessels which carry blood from capillaries back to the heart (body to right heart; ...Read more


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Can an electrocardiogram detect blocked coronary arteries?

Can an electrocardiogram detect blocked coronary arteries?

Indirectly/Maybe: An electrocardiogram is a recording of a series of heartbeats in a moment in time. Depending on the severity of the blockage, the symptoms being experienced at the time, whether this was an ekg during exercise or stress or symptoms would all come into play as to the ability of the test to detect blockage. Not the best test but of use in the overall evaluation of cad. Get a complete evaluation. ...Read more

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What tests are used to diagnose coronary artery blockage?

What tests are used to diagnose coronary artery blockage?

Invasive and non: Coronary blockage is defined as enough narrowing to cause symptoms, or to show up on a stress test. Stress tests look for signs of reduced heart muscle oxygen supply (e.g. Ekg changes during exercise, weak heart squeezing on echo, or nuclear perfusion defects). Angiography ("cardiac cath") is invasive, injecting dye into the arteries to image blockages, and stents can be inserted at the same time. ...Read more

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How can the coronary arteries become blocked?

How can the coronary arteries become blocked?

Atherosclerosis: A process that begins at birth. It can progress due to smoking, high blood pressure, diabetes, high cholesterol and in those with a family history. Know your risk factors and be proactive in treating them. ...Read more

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What tests are available to diagnose coronary artery blockage?

What tests are available to diagnose coronary artery blockage?

Several: If a cardiologist suspects coronary artery blockage the first step will be a very complete history. A nuclear stress test is a common diagnostic test and cardiac ct angiograms are becoming more common. The next step is usually a diagnostic cardiac catheterizaiton. Also since approximately 80% of coronary artery disease, cad, patients have peripheral vascular disease, pvd, that will need eval to. ...Read more

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Could echos sometimes detect artery malfunctions or blocked arteries?

Could  echos sometimes detect artery malfunctions or blocked arteries?

Yes: By echo I am assuming you are talking about an ultrasound. If that is true, the ultrasound machine is more than capable of detecting occluded vessels (arteries or veins) by an experienced ultrasound technician. The ultrasound is a very valuable tool used by vascular surgeons to help diagnosis disease processes. ...Read more

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How do doctors test for coronary artery blockage?

How do doctors test for coronary artery blockage?

Usually stress tests: Stress tests are used to see if an artery has severe blockage in it, which prevents adequate blood flow to the heart muscle to meet its energy needs. If abnormal, cardiac cath (i.e. "angiogram) is often needed to invasively image the arteries and see the extent of the problem. ...Read more

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How reliable is ultra sound for detecting carotid artery blockage?

How reliable is ultra sound for detecting carotid artery blockage?

Excellent: Ultrasound duplex imaging of the cervical carotid arteries is very good at determining significant arterial narrowing. Changes in the flow patterns of the carotid arteries can also suggest disease in the internal carotid arteries further on in at the skull base even though the arteries themselves cannot be seen at that level. ...Read more

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What is the accuracy of carotid artery ultrasound to detect heart problems?

What is the accuracy of carotid artery ultrasound to detect heart problems?

Depends: Some studies suggest that by using carotid duplex and measuring intima media thickness we can detect early coronary artery disease with sensitivity of 85% but low specificity of 39% . It is a good screening test that is not invasive but not very accurate. ...Read more

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How could you unblock coronary arteries?

How could you unblock coronary arteries?

Depends: In the most serious cases of blocked arteries, intervention(s): stents, angioplasty, rotoblador or surgery is necessary for revascularization or blocked coronary arteries. ...Read more

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Can you tell me how precise is a nuclear stress ECG at detecting narrowing of the coronary arteries?

Can you tell me how precise is a nuclear stress ECG at detecting narrowing of the coronary arteries?

Usually accurate: Nuclear stress test using exercise (tread mill or drug induced tachycardia) as well as resting phases for comparison. Test detects ischemic or infarcted heart muscle which can be correlated with coronary artery supplying that portion of cardiac muscle.Test is considered usually quite accurate. ...Read more

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Does act angiography show all blockages to the heart like clogged arteries anywhere and everywhere?

Does act angiography show all blockages to the heart like clogged arteries anywhere and everywhere?

CTA: CT angiography shows vessel status in the vascular bed(s) which are imaged in the specific test. If it isn't in the field studied, it won't appear in the study. ...Read more

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Can you see the carotid and coronary arteries echocardiogram?

Can you see the carotid and coronary arteries echocardiogram?

Not really.: The carotids may sometimes be able to be seen with a transesophageal echo. The coronaries may occasionally be seen, but not to the point of being able to do any sort of diagnosis. ...Read more

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Will a cardiac mri/mra show congested heart failure, blocked arteries, etc? What all will it show?

Will a cardiac mri/mra show congested heart failure, blocked arteries, etc? What all will it show?

It Varies: Cardiac MRI will show heart function, valves, and if they give contrast, can show evidence of prior heart attacks. Sometimes it can show blocked arteries, but it's not the best study to look at these. ...Read more

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Can a CT CHEST W/CST. + 3D visualize the coronary arteries well? The connections of the coronary arteries? Help please....

Can a CT CHEST W/CST. + 3D visualize the coronary arteries well?  The connections of the coronary arteries? Help please....

EVALUATE CAD: A chest CT WITH CORONARY ARTERY cuts and 3d images will help with documentation of calcification. A thallium scan is more effective for blood flow distribution. Then have results reviewed with cardiologist. ...Read more

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Can a CT CHEST W/CST. + 3D visualize the coronary arteries well? The connections of the coronary arteries?

Can a CT CHEST W/CST. + 3D visualize the coronary arteries well?  The connections of the coronary arteries?

Yes: The test is excellent for ruling out significant coronary disease. It's not so good for determining the severity of coronary disease in people with known disease or who have stents since the x-ray can't penetrate calcified deposits or metal well enough. But in healthy (non-calcified) vessels, it's very accurate. ...Read more

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Dr. Daniel Saurborn
2 doctors shared insights

Coronary Artery (Definition)

Coronary artery is the name given to the blood vessels that supply the myocardium. The word coronary was coined by the first anatomists that noticed that if you remove all muscle from the heart the remaining vessels resemble the shape of a corona or crown. ...Read more


Dr. Debra Rosenblatt
5 doctors shared insights

Cardiac (Definition)

Cardiac translates literally to "heart, " and any place the term is seen, such ...Read more