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Posted by: Master, Doctor Nguyen Le Thao Tram - Department of Diagnostic Imaging - Vinmec Nha Trang International General Hospital.
Triple-Rule-Out (abbreviated as TRO) is a contrast-enhanced CTScan technique used to examine the coronary arteries, aorta, and pulmonary arteries in one scan.
1. What is Triple-rule-out shooting?
TRO is commonly used in emergency situations that need to rule out coronary, aortic, or pulmonary artery disease, such as pulmonary embolism, aortic dissection, or occlusive stenosis. rim.
However, in cases of contraindications such as allergy to contrast, pregnancy or suspected pregnancy, heart failure, severe renal failure..., TRO imaging should not be indicated.
2. When should you shoot Triple-rule-out?
Your doctor will order a TRO scan when you have acute chest pain, are at low or moderate risk of coronary syndrome and do not have acute coronary syndrome.
Before the scan, you will be tested for coronary markers such as myoglobin or troponin-I and electrocardiogram (ECG) to rule out myocardial infarction. You should also provide us with information about your history of coronary calcification if you have had a previous coronary angiogram.
Chụp TRO được chỉ định khi có nguy cơ mắc hội chứng mạch vành ở cấp độ thấp
3. What should be prepared before shooting Triple - rule - out?
You will be asked about your history of allergy to contrast and whether you are pregnant. At the same time, if you have severe heart failure, severe kidney failure, or you cannot hold your breath, your doctor will also consider giving a TRO scan.
You must stop caffeine and other stimulants before the scan and ideally you should fast for 4 to 6 hours before the scan.
4. How is Triple-rule-out shooting done?
You will be veined with an 18G needle and taken to the CTScan room, when lying on the bed, you will raise your hands above your head. Here you have an electrocardiogram and a high-speed physiological saline pump to check the veins first. You will be given breathing exercises and a nitromin spray under your tongue 2 to 3 minutes before the scan.
The electric syringe will deliver the contrast and saline solution into your hand several times through the pre-filled needle. During the scan, you may feel some symptoms such as heat, dry throat....There will be some commands given and you should follow. Our staff will guide you on what to do during the shoot and will notify you when it's done.
5. What are the possible risks when taking Triple - rule - out?
Because the TRO scan uses drugs, you may have a reaction to the drug, the reaction levels will be assessed by the doctor and treated according to the right level.
6. Equipment to shoot Triple – rule – out
For TRO imaging, the hospital requires a CTScan with 64 slices or more. GE's 512-slice CTScan machine being used at Vinmec Nha Trang is capable of performing this technique well and does not require beta blockers.
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Vinmec Nha Trang International General Hospital is proud to be one of the hospitals in the country that has invested in a modern 512-slide CT scanner with a team of highly specialized doctors who can conduct imaging, diagnosis, and detection. diseases of coronary artery, aorta, pulmonary artery for high efficiency in diagnosis and treatment.
Please dial HOTLINE for more information or register for an appointment HERE. Download MyVinmec app to make appointments faster and to manage your bookings easily.
