Each lobe of the lung contributes to the total lung volume.
|
Lung Lobe
|
Percent Lung Volume
|
|
left upper lobe
|
24%
|
|
left lower lobe
|
24%
|
|
right upper lobe
|
18%
|
|
right middle lobe
|
9%
|
|
right lower lobe
|
25%
|
where:
• The left upper, left lower and right lower lobes are roughly equivalent.
For each lobe:
percent of total lung involvement =
= (percent of lobe involved) * (percent of total lung volume for lobe)
