70498 Computed tomographic angiography, neck, with contrast material(s), including noncontrast images, if performed, and image postprocessing

Name of the Procedure:

Computed Tomographic Angiography (CTA), Neck with Contrast Material(s)

Summary

Computed Tomographic Angiography (CTA) of the neck is an imaging procedure that uses specialized X-ray equipment to examine blood vessels. It involves injecting a contrast dye to highlight the vessels and may include noncontrast images for comparison. The data is processed to create detailed 3D images of the neck's vascular system.

Purpose

The procedure aims to diagnose vascular conditions like artery blockages, aneurysms, and other vascular abnormalities in the neck. The goal is to provide accurate and detailed images to help in planning treatment and interventions.

Indications

• Suspected arterial blockages or stenosis.
• Evaluation of carotid artery disease.
• Follow-up on previous vascular conditions or surgeries.
• Diagnosis of aneurysms or vascular malformations.
• Patients experiencing symptoms like dizziness, headaches, or transient ischemic attacks (TIAs) that suggest vascular problems.

Preparation

• Patients may need to fast for a few hours before the procedure.
• Allergies to contrast material or iodine should be disclosed to the doctor.
• Medications might need to be adjusted; especially blood thinners or diabetic medications.
• A preliminary blood test may be required to check kidney function for safe contrast use.

Procedure Description

1. The patient lies on a motorized table.
2. An intravenous line (IV) is inserted into the arm to administer contrast material.
3. Initial noncontrast images are taken for baseline comparison.
4. Contrast material is injected, and the scanner takes rapid sequential images of the neck.
5. The data is processed to construct detailed 3D images.
6. The entire scan typically involves minimal movement.

Duration

The procedure usually takes about 30 minutes to an hour, including preparation and post-processing.

Setting

CTA is performed in a hospital radiology department or an outpatient imaging center.

Personnel

• Radiologist
• Radiologic technologist
• Nurses for IV insertion and patient monitoring

Risks and Complications

• Allergic reaction to contrast material.
• Kidney impairment from contrast material.
• Radiation exposure, though minimal, is a consideration.
• Discomfort or bruising at the IV site.

Benefits

• Accurate diagnosis of vascular conditions.
• Non-invasive with no need for surgical incisions.
• Quick procedure with same-day results in many cases.
• Detailed images aid in better planning of treatment.

Recovery

• Typically, no recovery time is required.
• The patient can usually resume normal activities immediately.
• Drink plenty of fluids to help flush out the contrast material.
• Follow-up appointments may be scheduled to discuss the results.

Alternatives

• Magnetic Resonance Angiography (MRA): Uses magnetic fields and contrast material, suitable for those allergic to iodine-based contrast.
• Carotid ultrasound: Non-invasive, no radiation, but less detailed.
• Traditional angiography: More invasive but provides a treatment option during the diagnostic procedure.

Patient Experience

• Patients may feel a warm sensation during the contrast injection.
• Minimal discomfort due to the needle insertion.
• Lying still is required throughout the procedure.
• Most patients experience no significant discomfort post-procedure.