Body Part - Chest
ANTERIOR OBLIQUE CHEST X-RAY
Chest x-ray taken from 45 degrees from the back of the patient. It can be right anterior oblique (tilted 45 degrees to the left) or left anterior oblique (tilted 45 degrees to the right). This technique is sometimes used to see if a questionable abnormality is real or not.
ANTERIOR RIB
This is confusing terminology. A rib wraps around the chest on each side. It starts from the back and goes to the front of the chest. Anterior rib refers to the front part of the rib. The anterior rib, lateral rib and posterior rib are not separate structures. They are different parts of the same rib.
AORTA
The largest artery in the body. It is directly connected to the heart (left ventricle). It supplies oxygen throughout our body.
AORTIC ANEURYSM
A segment of the aorta with abnormal dilation or “ballooning”.
AORTIC ARCH
The part of the aorta that looks like an upside down “U”. It is located near the central part of the chest. Also called “aortic knob”.
AORTIC CALCIFICATION
White lines that outline the wall of the aorta on a chest x-ray. This is a secondary sign of atherosclerotic disease.
AORTIC KNOB
The part of the aorta that looks like an upside down “U”. It is located near the central part of the chest. Also called “aortic arch”.
AP CHEST X-RAY
AP stands for anteroposterior. This is a chest x-ray that is taken from the front of the patient. This type of chest x-ray is usually taken with a portable x-ray machine.
AP WINDOW (aorticopulmonary window)
The space between the aortic arch and the left main pulmonary artery. This is located near the central part of the chest.
ASCENDING AORTA
The first part of the aorta in the chest. It connects to the heart (left ventricle). It is located at the anterior (or front) part of the chest. The blood within the ascending aorta flows towards the head.
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