rvf의 원인과 진단 방법
Residual volume fraction (RVF) is a measure used in medical imaging to assess lung function. It represents the volume of air that remains in the lungs after a maximal expiration. RVF can be caused by various respiratory conditions such as chronic obstructive pulmonary disease (COPD), asthma, and emphysema. Diagnosing RVF typically involves performing pulmonary function tests, including spirometry and body plethysmography, to measure lung volumes and capacities. These tests help evaluate the presence and severity of air trapping and hyperinflation. Other imaging modalities like CT scans may also be used to assess RVF. To better understand the causes and diagnostic methods for RVF, let’s delve into the details below.