Journal
CLINICAL BREAST CANCER
Volume 8, Issue 1, Pages 88-91Publisher
CIG MEDIA GROUP, LP
DOI: 10.3816/CBC.2008.n.007
Keywords
antiestrogen therapy; cyclophosphamide; doxorubicin; fractional anisotropy
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Purpose: The purpose of this study was to examine the effect of adjuvant chemotherapy on normal-appearing white matter in women with breast cancer. Patients and Methods: Ten patients with early-stage breast cancer who were treated with adjuvant chemotherapy and 9 age-, education-, and IQ-matched healthy controls were studied with magnetic resonance imaging. Diffusion tensor imaging was used to calculate fractional anisotropy (FA), a measure of white matter integrity. Measurements were made in the genu and splenium of the corpus callosum. Participants also completed measures of processing speed, depression, and anxiety. Results: Relative to controls, patients had slower processing speed and lower FA in the genu. Processing speed was positively correlated with FA in the genu. Conclusion: The results of this pilot study suggest that adjuvant chemotherapy affects normal-appearing white matter in the genu of the corpus callosum and that this is related to the cognitive deficits experienced by patients.
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