Peripheral arteries of the upper extremities CT angiography (CTA) is a non-invasive diagnostic method used to visualize the arterial network in the arms and shoulders. This technique employs computed tomography (CT) and a contrast medium to obtain detailed images of the peripheral arteries and detect any pathological changes.
 
Advantages: Compared to traditional angiography, CT angiography offers several benefits: it is non-invasive, less traumatic for the patient, and provides more detailed visualization of the blood vessels.
 
Components:
Contrast Medium: Enhances the visualization of blood vessels on CT images.
CT Scanner: Device that performs a series of slices to capture images.
Three-Dimensional Reconstruction: Allows detailed imaging of the peripheral arteries.
 
Applications: Peripheral arteries CTA is crucial for diagnosing conditions such as:
Intermittent Claudication: Symptoms like pain, numbness, or weakness in the arms during physical activity.
Upper Extremity Ischemia: Caused by atherosclerosis or other conditions leading to narrowing or blockage of the arteries.
Aneurysms and Dissections: Identifying abnormal dilations or tears in the arteries of the arms.
Pre-Surgical Planning: Assessing the peripheral arteries before planned surgery or endovascular procedures.
Post-Surgical Assessment: Evaluating the condition of the arteries following surgical or endovascular interventions.
 
Preparation:
Diet: Fast for 4-6 hours before the procedure to avoid nausea and improve vessel visualization.
Medication Information: Inform the doctor about all medications being taken, as some may affect the results.
Risk Factors: Avoid smoking, alcohol, and strenuous exercise for 24 hours before the procedure to ensure accurate results.
Kidney Function: Kidney function may be checked prior to the procedure since the contrast medium is excreted through the kidneys.
Pregnancy or Breastfeeding: Inform medical staff if pregnant or breastfeeding to take appropriate precautions.
 
Procedure:
The patient is positioned on the CT scanner table.
A contrast medium is injected into a vein for enhanced visualization of the blood vessels.
The patient must remain still during the scan to ensure clear images.
The scanning process typically lasts between 15-30 minutes, depending on the protocol.