In acute aortic regurgitation, pulmonary edema is almost universally ... A ratio of < 24 is mild, 25-45 is moderate, 46-64 is moderately severe, and > 65 is severe. The pressure half-time index ...

These results indicate that a considerable degree of pulmonary insufficiency is often present in patients with mild or moderately severe muscular dystrophy. The reductions in total lung volume ...