Aortic window

Aortic Window is a term used in medical imaging and cardiology to describe a specific area of the mediastinum that is visible in certain radiographic views of the chest. The aortic window is located between the aortic arch and the pulmonary artery, and is often used as a landmark in radiology and cardiothoracic surgery.

Anatomy

The aortic window is an anatomical space in the mediastinum, located between the aortic arch and the left pulmonary artery. It is bordered anteriorly by the pulmonary trunk, posteriorly by the descending thoracic aorta, and medially by the left atrium. The aortic window is one of several mediastinal spaces that are visible in radiographic images of the chest.

Clinical significance

In clinical practice, the aortic window is often used as a landmark in the interpretation of chest radiographs and computed tomography (CT) scans. It is also used in the planning and execution of cardiothoracic surgical procedures.

Abnormalities in the aortic window can be indicative of various medical conditions. For example, an enlarged aortic window can be a sign of aortic aneurysm or aortic dissection. Conversely, a narrowed or obliterated aortic window can suggest the presence of mediastinal mass or lymphadenopathy.

Diagnostic imaging

In diagnostic imaging, the aortic window is typically evaluated using chest radiographs or CT scans. On a lateral chest radiograph, the aortic window appears as a clear space in the mediastinum, located between the aortic arch and the left pulmonary artery. On a CT scan, the aortic window can be visualized in more detail, allowing for the identification of subtle abnormalities that may not be apparent on a radiograph.

See also

• Mediastinum
• Aortic arch
• Pulmonary artery
• Cardiothoracic surgery
• Radiology

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