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Figure 5 | Fluids and Barriers of the CNS

Figure 5

From: Diffusion tensor imaging in elderly patients with idiopathic normal pressure hydrocephalus or Parkinson’s disease: diagnosis of gait abnormalities

Figure 5

Discriminant analysis for INPH and PD groups. A) Association between fractional anisotropy (FA) for anterior thalamic radiation and TUG time to complete in the both the INPH and PD groups. A discriminant analysis indicates that distinction with a correct rate of 96.4% is possible on the basis of 2 independent variables (FA and TUG time to complete). This indicates that distinction between INPH and PD is possible on the basis of the finding that ATR FA is markedly lower in INPH patients than in PD patients, even when the TUG time to complete is similar. B) T2-weighted MRI images of the head are shown for cases 1, 2, and 3 from the INPH group and cases 4, 5, and 6 from the PD group in Figure 5A. The images of cases 2 and 3 with INPH show enlarged ventricles (*) and expanded Sylvian fissures (arrow). When a comparison is made between early stage case 1 and case 4, the disproportionately enlarged subarachnoid space hydrocephalus (DESH) sign in case 1 is mild, and this makes the distinction between INPH and PD very difficult.

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