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letter
. 2012 Apr 4;32(6):973–977. doi: 10.1038/jcbfm.2012.19

Figure 2.

Figure 2

(A) CBF values for 99mTc-HMPAO autoradiography and pCASL in the six ROIs (average over four slices (three slices for IC and CPu), mean±s.d.). Blood flow measurements were not significantly different between AR and ASL in ROIs apart from CPu. Two-tailed paired Student's t-test: contralateral motor cortex (MCtx), P=0.83; sensorimotor cortex (SSCtx), P=0.93; CPu, *P=0.014; ipsilateral motor cortex (ipsi MCtx), P=0.83; DWI/PWI mismatch (MM), P=0.17; IC, P=0.35. (B) There is broad agreement between AR and ASL measurements on the Bland Altman plot (data averaged across slices), although ASL values tend to be slightly lower than AR values. AR, autoradiography; ASL, arterial spin labelling; CBF, cerebral blood flow; CPu, caudate putamen; DWI, diffusion-weighted imaging; IC, ischemic caudate nucleus; PWI, perfusion-weighted imaging; pCASL, pseudo-continuous ASL; ROIs, regions of interest; 99mTc-HMPAO, 99mTc-D, L-hexamethylpropyleneamine oxime.