Cardiac magnetic resonance imaging for morphology and function without contrast material(s), followed by contrast material(s) and further sequences
CPT4 code
Name of the Procedure:
Cardiac Magnetic Resonance Imaging (MRI) for Morphology and Function without Contrast Material(s), followed by Contrast Material(s) and Further Sequences
Summary
Cardiac MRI is a medical imaging technique used to get detailed pictures of the heart's structure and function. This procedure involves taking images first without a contrast dye and then with a contrast dye to enhance the quality of the images and provide more detailed information.
Purpose
The main purpose of a cardiac MRI is to evaluate the heart's anatomy, function, and blood flow, as well as to identify abnormalities or diseases of the heart muscle, valves, and coronary arteries. The expected outcome is a comprehensive assessment of the heart which aids in diagnosis and treatment planning.
Indications
- Symptoms such as chest pain, shortness of breath, or palpitations
- Known or suspected heart disease (e.g., myocarditis, cardiomyopathy)
- Congenital heart defects
- Assessment of heart function in patients with known heart complications
- Planning for or evaluation after heart surgery
Preparation
- Patients are usually advised to avoid food and drink for a few hours before the exam.
- Metal objects and devices (like jewelry, watches, and hearing aids) should be removed.
- Diagnostic tests such as blood tests or ECG might be required beforehand.
- Patients may need to inform their doctor about any kidney problems or allergies, especially to contrast material.
Procedure Description
- The patient lies on an MRI table which slides into the MRI scanner.
- Initial scans are taken without any contrast material to get baseline images.
- Contrast material is then injected through an IV line to enhance the images.
- Additional sequences of images are taken.
- The patient needs to remain still and may be asked to hold their breath briefly during image acquisition.
- Tools: MRI machine, IV line for contrast material
- No anesthesia is typically required, but some patients might receive a mild sedative if they are anxious.
Duration
The entire procedure usually takes about 30 to 90 minutes.
Setting
The procedure is typically performed in a hospital or specialized imaging center with MRI facilities.
Personnel
- Radiologist or cardiologist specialized in cardiac imaging
- MRI technologist
- Nurse (for administering contrast material)
Risks and Complications
- Common: Discomfort from lying still, claustrophobia
- Rare: Allergic reaction to contrast material, issues with kidney function due to contrast dye
- Complication Management: Medical staff are equipped to manage any adverse reactions or complications that arise promptly.
Benefits
- Provides detailed images that can lead to accurate diagnosis and tailored treatment plans.
- Non-invasive and does not involve ionizing radiation.
- The benefits are usually realized immediately with the diagnostic information obtained.
Recovery
- No special recovery time is needed.
- Post-procedure instructions may include drinking plenty of fluids to help flush out the contrast material.
- Normal activities can typically be resumed right away, barring any additional medical instructions.
Alternatives
- Echocardiography: Less detailed images but more readily available.
- CT Scan: Faster and involves ionizing radiation but can be less precise in soft tissue contrast.
- Nuclear Stress Test: Involves radiation and typically assesses function under stress conditions.
Patient Experience
- Patients may feel a cool sensation from the contrast injection.
- MRI noise can be loud, so earplugs or headphones are often used.
- Most patients feel minimal discomfort aside from the need to lie still for the duration of the scan.
- Pain management is typically not necessary, but comfort measures (like a mild sedative for anxious patients) may be taken.