Three dimensional imaging of ventilation dynamics in obstructive lung disease
نویسندگان
چکیده
ventilation defects during the breath-hold (a, white arrows) in a volunteer with asthma. During the forced exhalation, residual signal due to gas trapping is evident in MRI (b, arrows) and air trapping is confirmed in MDCT during breath-hold at FRC (d, arrows). Figure 1. Subset of MIP time-frame images during dynamic ventilation showing intense signal enhancement during inspiration (arrow, 6 s) and significant trapping in the upper right lobe in a volunteer with a pulmonary aneurysm (arrow, 24.5 s). a) Uptake slope map depicting region of abnormal gas uptake during inspiration in same volunteer as a) (arrows). Three dimensional imaging of ventilation dynamics in obstructive lung disease
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