In a normal three-vessel/trachea view, the great vessels show which arrangement?

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Multiple Choice

In a normal three-vessel/trachea view, the great vessels show which arrangement?

The main idea is that in the normal three-vessel/trachea view, the great vessels form a spiral around the trachea rather than lying in a straight, parallel row. This spiral (or serial) arrangement means the pulmonary artery is anterior to the aorta, and as you look from right to left around the trachea, the vessels rotate relative to each other. This twisting pattern is what you should expect in a normal fetus. If the vessels appeared side by side in a parallel fashion, that would suggest an abnormal arrangement (as seen in certain conditions like transposition of the great arteries). So, the normal 3VT view is defined by a spiral/serial relationship of the great vessels around the trachea.

The main idea is that in the normal three-vessel/trachea view, the great vessels form a spiral around the trachea rather than lying in a straight, parallel row. This spiral (or serial) arrangement means the pulmonary artery is anterior to the aorta, and as you look from right to left around the trachea, the vessels rotate relative to each other. This twisting pattern is what you should expect in a normal fetus. If the vessels appeared side by side in a parallel fashion, that would suggest an abnormal arrangement (as seen in certain conditions like transposition of the great arteries). So, the normal 3VT view is defined by a spiral/serial relationship of the great vessels around the trachea.

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