Using brain structural neuroimaging measures to predict psychosis onset for individuals at clinical high-risk
Molecular Psychiatry,
Год журнала:
2024,
Номер
29(5), С. 1465 - 1477
Опубликована: Фев. 9, 2024
Abstract
Machine
learning
approaches
using
structural
magnetic
resonance
imaging
(sMRI)
can
be
informative
for
disease
classification,
although
their
ability
to
predict
psychosis
is
largely
unknown.
We
created
a
model
with
individuals
at
CHR
who
developed
later
(CHR-PS+)
from
healthy
controls
(HCs)
that
differentiate
each
other.
also
evaluated
whether
we
could
distinguish
CHR-PS+
those
did
not
develop
(CHR-PS-)
and
uncertain
follow-up
status
(CHR-UNK).
T1-weighted
brain
MRI
scans
1165
(CHR-PS+,
n
=
144;
CHR-PS-,
793;
CHR-UNK,
228),
1029
HCs,
were
obtained
21
sites.
used
ComBat
harmonize
measures
of
subcortical
volume,
cortical
thickness
surface
area
data
corrected
non-linear
effects
age
sex
general
additive
model.
(
120)
HC
799)
20
sites
served
as
training
dataset,
which
build
classifier.
The
remaining
samples
external
validation
datasets
evaluate
classifier
performance
(test,
independent
confirmatory,
group
[CHR-PS-
CHR-UNK]
datasets).
accuracy
the
on
confirmatory
was
85%
73%
respectively.
Regional
measures-including
right
superior
frontal,
temporal,
bilateral
insular
cortices
strongly
contributed
classifying
HC.
CHR-PS-
CHR-UNK
more
likely
classified
compared
(classification
rate
HC:
CHR-PS+,
30%;
73%;
80%).
multisite
sMRI
train
onset
in
individuals,
it
showed
promise
predicting
an
sample.
results
suggest
when
considering
adolescent
development,
baseline
may
helpful
identify
prognosis.
Future
prospective
studies
are
required
about
actually
clinical
settings.
Язык: Английский
Application of a Machine Learning Algorithm for Structural Brain Images in Chronic Schizophrenia to Earlier Clinical Stages of Psychosis and Autism Spectrum Disorder: A Multiprotocol Imaging Dataset Study
Schizophrenia Bulletin,
Год журнала:
2022,
Номер
48(3), С. 563 - 574
Опубликована: Фев. 27, 2022
Machine
learning
approaches
using
structural
magnetic
resonance
imaging
(MRI)
can
be
informative
for
disease
classification;
however,
their
applicability
to
earlier
clinical
stages
of
psychosis
and
other
spectra
is
unknown.
We
evaluated
whether
a
model
differentiating
patients
with
chronic
schizophrenia
(ChSZ)
from
healthy
controls
(HCs)
could
applied
such
as
first-episode
(FEP),
ultra-high
risk
(UHR),
autism
spectrum
disorders
(ASDs).Total
359
T1-weighted
MRI
scans,
including
154
individuals
(UHR,
n
=
37;
FEP,
24;
ChSZ,
93),
64
ASD,
141
HCs,
were
obtained
three
acquisition
protocols.
Of
these,
data
regarding
ChSZ
(n
75)
HC
101)
two
protocols
used
build
classifier
(training
dataset).
The
remainder
was
evaluate
the
(test,
independent
confirmatory,
group
datasets).
Scanner
protocol
effects
diminished
ComBat.The
accuracy
test
confirmatory
datasets
75%
76%,
respectively.
bilateral
pallidum
inferior
frontal
gyrus
pars
triangularis
strongly
contributed
classifying
ChSZ.
Schizophrenia
more
likely
classified
compared
ASD
(classification
rate
ChSZ:
UHR,
41%;
54%;
70%;
19%;
HC,
21%).We
built
multiple
brain
images
applicable
samples
different
spectra.
predictive
information
useful
applying
neuroimaging
techniques
differential
diagnosis
predicting
onset
earlier.
Язык: Английский
Beyond case-control study in neuroimaging for psychiatric disorders: Harmonizing and utilizing the brain images from multiple sites
Neuroscience & Biobehavioral Reviews,
Год журнала:
2025,
Номер
171, С. 106063 - 106063
Опубликована: Фев. 26, 2025
Язык: Английский
Alterations in subcortical magnetic susceptibility and disease-specific relationship with brain volume in major depressive disorder and schizophrenia
Translational Psychiatry,
Год журнала:
2024,
Номер
14(1)
Опубликована: Март 26, 2024
Abstract
Quantitative
susceptibility
mapping
is
a
magnetic
resonance
imaging
technique
that
measures
brain
tissues’
susceptibility,
including
iron
deposition
and
myelination.
This
study
examines
the
relationship
between
subcortical
volume
determines
specific
differences
in
these
among
patients
with
major
depressive
disorder
(MDD),
schizophrenia,
healthy
controls
(HCs).
was
cross-sectional
study.
Sex-
age-
matched
MDD
(
n
=
49),
schizophrenia
24),
HCs
50)
were
included.
Magnetic
conducted
using
quantitative
T1-weighted
to
measure
volume.
The
acquired
measurements
compared
groups
analyses
of
variance
post
hoc
comparisons.
Finally,
general
linear
model
examined
susceptibility–volume
relationship.
Significant
group-level
found
nucleus
accumbens
amygdala
p
0.045).
Post-hoc
indicated
for
group
significantly
higher
than
HC
0.0054,
0.0065,
respectively).
However,
no
significant
groups.
interaction
but
not
or
showed
alterations
patients.
A
observed
group’s
accumbens,
which
abnormalities
myelination
dopaminergic
system
related
deposition.
Язык: Английский
Human Brain Magnetic Resonance Imaging Studies for Psychiatric Disorders: The Current Progress and Future Directions
JMA Journal,
Год журнала:
2024,
Номер
7(2), С. 197 - 204
Опубликована: Янв. 1, 2024
With
the
prevalence
of
psychiatric
disorders
and
limitations
diagnostic
scheme
treatment
options
these
disorders,
magnetic
resonance
imaging
(MRI)
studies
play
a
significant
role
in
uncovering
pathological
basis
potentially
using
biological
markers
clinical
settings.
The
use
MRI
research
has
grown
over
past
three
decades,
current
continues
to
provide
an
avenue
guide
development
approaches
therapeutic
solutions.
However,
shortcomings
derive
not
only
from
technical
(i.e.,
range
contrasts
that
probes
or
sensors
can
create)
but
also
confounding
factors
methodological
case-control
for
disorders.
Thus,
by
reviewing
recent
literature
on
we
explain
progress
brain
methodologies
used
study
We
consider
growing
cross-disorder
methods
identify
shared
disease-specific
features
across
In
addition,
need
outline
healthy
developmental
aging
changes
investigate
disorder
difference
as
deviation
trajectory.
Although
have
provided
us
with
new
insights,
demarcation
between
based
definitive
set
pathologies
remains
limited.
This
challenge
disease
stratification
is
further
complicated
presence
multiple
different
sets
Язык: Английский
A brief review of the neuroimaging modalities in schizophrenia and their scope
Annals of Medical Science and Research,
Год журнала:
2024,
Номер
3(1), С. 33 - 38
Опубликована: Янв. 1, 2024
Abstract
Schizophrenia
is
a
serious
mental
disorder
characterized
by
diverse
symptoms,
including
hallucinations,
delusions,
and
disorders
in
thinking,
behavior
cognition.
Its
etiology
multifactorial
involving
genetic,
environmental,
developmental,
neurobiological
factors.
Neuroimaging
studies
have
significantly
contributed
to
understanding
the
underlying
neural
abnormalities
associated
with
this
disorder.
Reduced
brain
volume
was
observed
frontal
temporal
lobes
most
using
structural
imaging
techniques.
Hypofrontality
functional
studies.
also
aids
differentiating
lesions
causing
symptoms
mimicking
schizophrenia.
However,
challenges
persist
due
variables
such
as
age,
gender,
comorbidities,
therapy
history,
substance
use,
coexisting
psychiatric
conditions,
which
are
often
insufficiently
controlled
for,
literature.
This
review
article
comprehensively
consolidates
diagnostic
prognostic
potential
of
various
neuroimaging
techniques
Язык: Английский
Surface area in the insula was associated with 28-month functional outcome in first-episode psychosis
Schizophrenia,
Год журнала:
2021,
Номер
7(1)
Опубликована: Ноя. 29, 2021
Abstract
Many
studies
have
tested
the
relationship
between
demographic,
clinical,
and
psychobiological
measurements
clinical
outcomes
in
ultra-high
risk
for
psychosis
(UHR)
first-episode
(FEP).
However,
no
study
has
investigated
multi-modal
long-term
>2
years.
Thirty-eight
individuals
with
UHR
29
patients
FEP
were
measured
using
one
or
more
modalities
(cognitive
battery,
electrophysiological
response,
structural
magnetic
resonance
imaging,
functional
near-infrared
spectroscopy).
We
explored
characteristics
associated
13-
28-month
outcomes.
In
UHR,
cortical
surface
area
left
orbital
part
of
inferior
frontal
gyrus
was
negatively
13-month
disorganized
symptoms.
FEP,
insula
positively
global
social
function.
The
are
well-known
brain
schizophrenia,
future
on
pathological
mechanism
alteration
would
provide
a
clearer
understanding
disease.
Язык: Английский
Using Brain Structural Neuroimaging Measures to Predict Psychosis Onset for Individuals at Clinical High-Risk
Research Square (Research Square),
Год журнала:
2023,
Номер
unknown
Опубликована: Авг. 22, 2023
Abstract
Machine
learning
approaches
using
structural
magnetic
resonance
imaging
(sMRI)
can
be
informative
for
disease
classification,
although
their
ability
to
predict
psychosis
is
largely
unknown.
We
created
a
model
with
individuals
at
CHR
who
developed
later
(CHR-PS+)
from
healthy
controls
(HCs)
that
differentiate
each
other.
also
evaluated
whether
we
could
distinguish
CHR-PS
+
those
did
not
develop
(CHR-PS-)
and
uncertain
follow-up
status
(CHR-UNK).
T1-weighted
brain
MRI
scans
1,165
(CHR-PS+,
n
=
144;
CHR-PS-,
793;
CHR-UNK,
228),
1,029
HCs,
were
obtained
21
sites.
used
ComBat
harmonize
measures
of
subcortical
volume,
cortical
thickness
surface
area
data
corrected
non-linear
effects
age
sex
general
additive
model.
CHR-PS+
(n
120)
HC
799)
20
sites
served
as
training
dataset,
which
build
classifier.
The
remaining
samples
external
validation
datasets
evaluate
classifier
performance
(test,
independent
confirmatory,
group
[CHR-PS-
CHR-UNK]
datasets).
accuracy
the
on
confirmatory
was
85%
73%
respectively.
Regional
measures-includingthose
right
superior
frontal,
temporal,
bilateral
insular
cortices
strongly
contributed
classifying
HC.
CHR-PS-
CHR-UNK
more
likely
classified
compared
(classification
rate
HC:
CHR-PS+,
30%;
73%;
80%).
multisite
sMRI
train
onset
in
individuals,
it
showed
promise
predicting
an
sample.
results
suggest
when
considering
adolescent
development,
baseline
may
helpful
identify
prognosis.
Future
prospective
studies
are
required
about
actually
clinical
settings.
Язык: Английский
Alterations in subcortical magnetic susceptibility and disease-specific relationship with brain volume in major depressive disorder and schizophrenia
Research Square (Research Square),
Год журнала:
2023,
Номер
unknown
Опубликована: Авг. 4, 2023
Abstract
Quantitative
susceptibility
mapping
is
a
magnetic
resonance
imaging
technique
that
measures
brain
tissues’
susceptibility,
including
iron
deposition
and
myelination.
This
study
examines
the
relationship
between
subcortical
volume
determines
specific
differences
in
these
among
patients
with
major
depressive
disorder
(MDD),
schizophrenia,
healthy
controls
(HCs).
Sex-
age-
matched
MDD
(n
=
49),
schizophrenia
24),
HCs
50)
were
included.
Magnetic
was
conducted
using
quantitative
T1-weighted
to
measure
volume.
The
acquired
measurements
compared
groups
analyses
of
variance
post
hoc
comparisons.
Finally,
general
linear
model
examined
susceptibility–volume
relationship.
Significant
group-level
found
nucleus
accumbens
amygdala.
Although,
post-hoc
indicated
amygdala
for
group
significantly
higher
than
HC
group,
no
significant
groups.
interaction
but
not
or
showed
alterations
patients.
A
observed
group’s
accumbens,
which
abnormalities
myelination
dopaminergic
system
related
deposition.
Язык: Английский