- Establishing CHD (coronary heart disease), coronary artery constriction
- Establishing coronary artery calcification
- Checking stents and bypasses
The cardiac CT exam is performed in close cooperation with our registered colleagues, particularly cardiologists, and can supplement their exams. The coronary angiography CT or cardiac CT is performed to rule out constriction of the coronary arteries for a constellation of risks or abnormal complaints. The passability of coronary artery bypass vessels can also be reliably established. The coronary arteries are imaged using CT coronary angiography without a catheter needing to be inserted through the groin.
Things to know about the coronary angiography CT radiation dose
Like the heart catheter exam, X-rays are used for CT coronary angiography, that is, the exam is associated with a dose of radiation. The radiation does varies depending on the problem. The Radiology Baden-Baden practice has the SIEMENS Edge, a 128-line top-class spiral CT that is very fast in order to produce clear, focused images of the beating heart, while remaining very low in radiation. With coronary angiography CT, in many cases a radiation dose of below 1 mSv can be achieved. This dose is significantly lower than the typical dose for a heart catheter—but, of course, if therapy is required then a direct intervention can only be performed via a heart catheter. This means that the radiation load is significantly lower than that which everyone is exposed to from the environment, year after year (approx. 2.5 mSv per year). Click here to learn more about our high-end spiral CT …
Preparation: avoid caffeinated beverages on the day of the examination, and do not take any erectile dysfunction medications (e.g., Viagra) for 24 hours prior to the examination. Click here to learn more about what to look for with cardiac CT …
For whom is this exam suitable?
- For patients with so-called “average or low pre-test probability” of the presence of coronary heart disease (CHD), that is, if the probability of coronary artery constriction requiring treatment is rather low—but it cannot be ruled out entirely. Please speak with us about the question of whether you need CT coronary angiography.
- For patients after aortocoronal bypass operations. In order to evaluate the condition of the bypass vessels, the CT coronary angiography is now an equivalent alternative to a heart catheter exam.
- For patients in whom the passability of a coronary artery must be checked after implantation of stents (blood vessel supports).
Advantages of CT coronary angiography
- Unlike heart catheter exams, no catheter needs to be inserted into the artery.
- The exam is much faster and uses less radiation than a heart catheter exam.
- “White plaque” that has not yet caused constriction of the coronary arteries can only be detected via CT coronary angiography.
The process uses a low dose of X-ray radiation and may be performed only by a radiologist. Please always clarify in advance whether your insurer will cover at least part of the cost of the examination.