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Fig. 2 | EJNMMI Research

Fig. 2

From: Noninvasive quantitation of rat cerebral blood flow using 99mTc-HMPAO—assessment of input function with dynamic chest planar imaging

Fig. 2

Radioactivity concentration in the brain (CBrain) after 99mTc-HMPAO injection. a Typical single-photon emission computed tomography/computed tomography (SPECT/CT) fusion transversal image of rat brain during 15–57 min post-injection of 99mTc-HMPAO (left panel) and the manually drawn volume of interest (VOI) (red circle, right panel). b Comparison of radioactivity concentration in brain determined by resection just after SPECT (CBrain-sampling) and that by SPECT 15–57 min post-injection of 99mTc-HMPAO (CBrain-SPECT). Correlation between the concentration determined by resection and that by SPECT imaging was assessed using Spearman’s rank correlation coefficient

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