User profiles for Pamela Guevara
Pamela GuevaraFull Professor Universidad de Concepción Verified email at udec.cl Cited by 2447 |
Automatic fiber bundle segmentation in massive tractography datasets using a multi-subject bundle atlas
This paper presents a method for automatic segmentation of white matter fiber bundles from
massive dMRI tractography datasets. The method is based on a multi-subject bundle atlas …
massive dMRI tractography datasets. The method is based on a multi-subject bundle atlas …
Altered structural connectivity of cortico-striato-pallido-thalamic networks in Gilles de la Tourette syndrome
…, S Lecomte, R Valabregue, F Poupon, P Guevara… - Brain, 2015 - academic.oup.com
Gilles de la Tourette syndrome is a childhood-onset syndrome characterized by the
presence and persistence of motor and vocal tics. A dysfunction of cortico-striato-pallido-thalamo-…
presence and persistence of motor and vocal tics. A dysfunction of cortico-striato-pallido-thalamo-…
[HTML][HTML] Tractography dissection variability: What happens when 42 groups dissect 14 white matter bundles on the same dataset?
White matter bundle segmentation using diffusion MRI fiber tractography has become the
method of choice to identify white matter fiber pathways in vivo in human brains. However, like …
method of choice to identify white matter fiber pathways in vivo in human brains. However, like …
Robust clustering of massive tractography datasets
This paper presents a clustering method that detects the fiber bundles embedded in any MR-diffusion
based tractography dataset. Our method can be seen as a compressing operation, …
based tractography dataset. Our method can be seen as a compressing operation, …
Increased and decreased superficial white matter structural connectivity in schizophrenia and bipolar disorder
Schizophrenia (SZ) and bipolar disorder (BD) are often conceptualized as “disconnection
syndromes,” with substantial evidence of abnormalities in deep white matter tracts, forming the …
syndromes,” with substantial evidence of abnormalities in deep white matter tracts, forming the …
A multicenter tractography study of deep white matter tracts in bipolar I disorder: psychotic features and interhemispheric disconnectivity
Importance Tractography studies investigating white matter (WM) abnormalities in patients
with bipolar disorder have yielded heterogeneous results owing to small sample sizes. The …
with bipolar disorder have yielded heterogeneous results owing to small sample sizes. The …
Reproducibility of superficial white matter tracts using diffusion-weighted imaging tractography
Human brain connection map is far from being complete. In particular the study of the
superficial white matter (SWM) is an unachieved task. Its description is essential for the …
superficial white matter (SWM) is an unachieved task. Its description is essential for the …
[HTML][HTML] Superficial white matter: A review on the dMRI analysis methods and applications
The mapping of human brain connections is still an on going task. Unlike deep white matter (DWM),
which has been extensively studied and well documented, superficial white matter (…
which has been extensively studied and well documented, superficial white matter (…
Local structural connectivity is associated with social cognition in autism spectrum disorder
The current theory implying local, short-range overconnectivity in autism spectrum disorder,
contrasting with long-range underconnectivity, is based on heterogeneous results, on limited …
contrasting with long-range underconnectivity, is based on heterogeneous results, on limited …
Childhood trauma and the limbic network: a multimodal MRI study in patients with bipolar disorder and controls
…, M Delavest, F Bellivier, P Guevara… - Journal of Affective …, 2016 - Elsevier
Background Childhood trauma (CT) is a major risk factor for psychiatric conditions. It is
hypothesized that CT effects are mediated by the limbic system. Few multimodal neuroimaging …
hypothesized that CT effects are mediated by the limbic system. Few multimodal neuroimaging …