All
are true regarding HRCT of lungs except
a.the
bronchus and homologous pulmonary artery are of similar diameter in normal
subjects
b.B/A
ratio refers to internal diameter( luminal ) of bronchus (B) divided by diameter of
adjacent pulmonary artery(A)
c.B/A
ratio in normal subjects averages .45 to .60
d.B/A
ratio >1 is generally regarded as abnormal
e.B/A
ratio >1 in normal subjects has been associated with increasing age
ANS --- c
B/A
ratio in normal subjects averages .65 to .70
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