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. 2013 Sep 11;8(9):e74991. doi: 10.1371/journal.pone.0074991

Figure 7. Analysis of attenuation correction factors after anterior and lateral gamma camera imaging.

Figure 7

Anterior and lateral attenuation correction factors (ACF) after pulsating aerosol (PA) delivery in healthy volunteers and in CRS patients before and after sinus surgery (FESS) as well as in healthy volunteers after nasal spray application (Healthy-NS). **: p < 0.01 compared to Healthy-PA, ++: p < 0.01 lateral versus anterior imaging.