TY - JOUR
T1 - Structural neuroimaging research methods in geriatric depression
AU - Hoptman, Matthew J.
AU - Gunning-Dixon, Faith M.
AU - Murphy, Christopher F.
AU - Lim, Kelvin O.
AU - Alexopoulos, George S.
PY - 2006/10
Y1 - 2006/10
N2 - Geriatric depression consists of complex and heterogeneous behaviors unlikely to be caused by a single brain lesion. However, there is evidence that abnormalities in specific brain structures and their interconnections confer vulnerability to the development of late-life depression. Structural magnetic resonance imaging methods can be used to identify and quantify brain abnormalities predisposing to geriatric depression and in prediction of treatment response. This article reviews several techniques, including morphometric approaches, study of white matter hyperintensities, diffusion tensor imaging, magnetization transfer imaging, t2 relaxography, and spectroscopy, that have been used to examine these brain abnormalities with a focus on the type of information obtained by each method as well as each method's limitations. The authors argue that the available methods provide complementary information and that, when combined judiciously, can increase the knowledge gained from neuroimaging findings and conceptually advance the field of geriatric depression.
AB - Geriatric depression consists of complex and heterogeneous behaviors unlikely to be caused by a single brain lesion. However, there is evidence that abnormalities in specific brain structures and their interconnections confer vulnerability to the development of late-life depression. Structural magnetic resonance imaging methods can be used to identify and quantify brain abnormalities predisposing to geriatric depression and in prediction of treatment response. This article reviews several techniques, including morphometric approaches, study of white matter hyperintensities, diffusion tensor imaging, magnetization transfer imaging, t2 relaxography, and spectroscopy, that have been used to examine these brain abnormalities with a focus on the type of information obtained by each method as well as each method's limitations. The authors argue that the available methods provide complementary information and that, when combined judiciously, can increase the knowledge gained from neuroimaging findings and conceptually advance the field of geriatric depression.
KW - Depression
KW - Gray matter
KW - Neuroimaging
KW - White matter
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U2 - 10.1097/01.JGP.0000238588.34205.bd
DO - 10.1097/01.JGP.0000238588.34205.bd
M3 - Article
C2 - 17001021
AN - SCOPUS:33749658346
SN - 1064-7481
VL - 14
SP - 812
EP - 822
JO - American Journal of Geriatric Psychiatry
JF - American Journal of Geriatric Psychiatry
IS - 10
ER -