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@ARTICLE{Rosen:845832,
author = {Rosen, Allyson C. and Soman, Salil and Bhat, Jyoti and
Laird, Angela R. and Stephens, Jeffrey and Eickhoff, Simon
and Fox, P. Mickle and Long, Becky and Dinishak, David and
Ortega, Mario and Lane, Barton and Wintermark, Max and
Hitchner, Elizabeth and Zhou, Wei},
title = {{C}onvergence {A}nalysis of {M}icro-{L}esions ({CAML}):
{A}n approach to mapping of diffuse lesions from carotid
revascularization},
journal = {NeuroImage: Clinical},
volume = {18},
issn = {2213-1582},
address = {[Amsterdam u.a.]},
publisher = {Elsevier},
reportid = {FZJ-2018-03039},
pages = {553 - 559},
year = {2018},
note = {ACR was supported by a K award NIH NIA (K01AG025157) and
the Mental Illness Research Education and Clinical Center
(MIRECC). JTS was supported by the MIRECC. ARL, SBE, PMF
were supported by the NIMH (R01-MH074457). Other grant
support includes the American Heart Association (CRP2610312)
and NIH NINDS (R01NS070308). JB was supported by NIH NINDS
(R21NS081416) and Palo Alto Veterans Institute for Research
(PAVIR).},
abstract = {Carotid revascularization (endarterectomy, stenting)
prevents stroke; however, procedure-related embolization is
common and results in small brain lesions easily identified
by diffusion weighted magnetic resonance imaging (DWI). A
crucial barrier to understanding the clinical significance
of these lesions has been the lack of a statistical approach
to identify vulnerable brain areas. The problem is that the
lesions are small, numerous, and non-overlapping. Here we
address this problem with a new method, the Convergence
Analysis of Micro-Lesions (CAML) technique, an extension of
the Anatomic Likelihood Analysis (ALE). The method combines
manual lesion tracing, constraints based on known lesion
patterns, and convergence analysis to represent regions
vulnerable to lesions as probabilistic brain atlases. Two
studies were conducted over the course of 12 years in an
active, vascular surgery clinic. An analysis in an initial
group of 126 patients at 1.5 T MRI was cross-validated in a
second group of 80 patients at 3T MRI. In CAML, lesions were
manually defined and center points identified. Brains were
aligned according to side of surgery since this factor
powerfully determines lesion distribution. A convergence
based analysis, was performed on each of these groups.
Results indicated the most consistent region of
vulnerability was in motor and premotor cortex regions.
Smaller regions common to both groups included the
dorsolateral prefrontal cortex and medial parietal regions.
Vulnerability of motor cortex is consistent with previous
work showing changes in hand dexterity associated with these
procedures. The consistency of CAML also demonstrates the
feasibility of this new approach to characterize small,
diffuse, non-overlapping lesions in patients with multifocal
pathologies.},
cin = {INM-7},
ddc = {610},
cid = {I:(DE-Juel1)INM-7-20090406},
pnm = {572 - (Dys-)function and Plasticity (POF3-572)},
pid = {G:(DE-HGF)POF3-572},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:29868451},
UT = {WOS:000433169000057},
doi = {10.1016/j.nicl.2018.01.020},
url = {https://juser.fz-juelich.de/record/845832},
}