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. Author manuscript; available in PMC: 2017 Aug 1.
Published in final edited form as: J Nucl Med. 2016 Mar 31;57(8):1296–1301. doi: 10.2967/jnumed.115.160291

Figure 2.

Figure 2

Decrease in perfused pulmonary volume by radiation, as determined by the ratio of 99mTc-MAA SPECT perfused volume to co-registered CT anatomical volume. Line is median value in non-irradiated (N=12) and irradiated rats at 1 (N=8), 2 (N=10), 3 (N=13), and 4 (N=9) weeks after 15 Gy to the thorax. *p<0.05 versus non-irradiated controls.