What is a CTA of the Coronary Arteries?
CT Angiography is a noninvasive imaging study that helps see fat and calcium deposits that have accumulated in the coronary arteries. These deposits, called plaques, can lead to blockages which can cause chest pain, shortness of breath, and/or heart attacks. If you have high cholesterol levels, high blood pressure, a family history of heart disease, diabetes, and/or smoke, you may be at risk for developing these plaques.
Who should consider CTA of the Coronary Arteries?
Patients should discuss with their primary physician or cardiologist whether this study would be helpful to assess their cardiac health. The most common reasons to order a CTA of the Coronary Arteries are to:
Why It Is Done?
A CT angiogram is done to look for:
How is this study performed?
Pictures are taken of the heart and coronary arteries using a special type of x-ray machine called a 128-slice multi-detector CT scanner. These pictures are obtained while contrast dye is given intravenously. The patient lies on an open table within a large donut-like structure that takes the pictures. The CTA scan is pain-free and takes 10 minutes.
How do I prepare for a CTA of the Coronary Arteries?
a. NOTE :- Metaformin is the generic name of a medicine its market name may be different, patient may confirm from his/her physician.
5. History of Allergy/Astham is required.
6. Patient must bring the prescription of the referring Cardiologist & old record.
7. Avoid caffeine and smoking 12 hours prior to the procedure to avoid cardiac stimulations.
8. Creatinine will be checked before CT.
Guidelines for requesting Physician
Guidelines for Radiology Department
a. Beta Blocker contraindications:
b. If pulse is 65-75 beats per minutes, give Lopressor 50mg orally and scan after 45 minutes, if pulse is <60 beats per minute. If patient cannot wait, give IV Lopressor 05 mg and check heart rate and scan if <60 beats per minute.
c. If heart rate > 75 beats per minute give 100 mg Lopressor orally and wait for 45 minutes or give 30 mg as 10 mg increments. Scan at any time, if heart rate is < 60 beats per minute. If heart rate > 75 beats per minute, after maximum dose of Lopressor, then cancel procedure. Check blood pressure before each dose of Lopressor.
d. If contraindication to Beta-Blocker, give Diltiazem 60 mg orally or 90 mg orally depending on blood pressure, if patient cannot wait.
e. IV Diltiazem or Verapamil (discuss with cardiologist).
f. Ivabradine (Ivatab or other trade name) 7.5 mg stat oral can be given to asthmatics. Scan at any time if heart rate < 60 beats per minutes. If heart rate > 70 beats per minute, discuss with cardiologist.
g. 8-10 drops of Rivotril, after the consultation of Cardiologist.