To calculate the Aortic Height Index (AHI):
\[ AHI = \frac{\text{Aortic Height}}{\text{BSA}} \]
Where:
The Aortic Height Index (AHI) is a measurement used in medical imaging to assess the size of the aorta in relation to the patient’s body size. It is calculated by dividing the maximum height of the aorta by the patient’s body surface area (BSA). This index is particularly useful in identifying abnormalities such as aneurysms or dissections in the aorta, as it provides a more accurate assessment of aortic size than absolute measurements, which do not take into account variations in body size.
Let's assume the following values:
Using the formula:
\[ AHI = \frac{30}{1.8} = 16.67 \text{ cm/m}^2 \]
The Aortic Height Index is 16.67 cm/m\(^2\).
Let's assume the following values:
Using the formula:
\[ AHI = \frac{35}{2.0} = 17.50 \text{ cm/m}^2 \]
The Aortic Height Index is 17.50 cm/m\(^2\).
