Primary angiitis of the central nervous system: apparent diffusion coefficient lesion analysis

Received 1 March 2009; accepted 24 March 2009. published online 12 May 2009.

Abstract

Apparent diffusion coefficients (ADCs) of the brain lesions in primary angiitis of the central nervous system (PACNS) patients were analyzed in this study. The mean ADC ratios for acute/subacute phase lesions were significantly lower than that for chronic phase lesions. However, some acute/subacute phase lesions had elevated ADCs and these lesions disappeared overtime, implicating a nonischemic mechanism in PACNS.

Keywords: Apparent diffusion coefficient, Primary angiitis, Diffusion-weighted imaging

Department of Radiology, University of Nebraska Medical Center, Omaha, NE, USA

Corresponding author. 981045 Nebraska Medical Center, Omaha, NE 68198-1045, USA. Tel.: +1 402 559 4617; fax: +1 402 559 1011.

PII: S0899-7071(09)00087-4

doi:10.1016/j.clinimag.2009.03.007

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