Journal of Clinical Medicine,
Год журнала:
2024,
Номер
13(8), С. 2323 - 2323
Опубликована: Апрель 17, 2024
Background:
This
study
evaluates
the
performance
of
a
vision
transformer
(ViT)
model,
ViT-b16,
in
classifying
ischemic
stroke
cases
from
Moroccan
MRI
scans
and
compares
it
to
Visual
Geometry
Group
16
(VGG-16)
model
used
prior
study.
Methods:
A
dataset
342
scans,
categorized
into
‘Normal’
’Stroke’
classes,
underwent
preprocessing
using
TensorFlow’s
tf.data
API.
Results:
The
ViT-b16
was
trained
evaluated,
yielding
an
impressive
accuracy
97.59%,
surpassing
VGG-16
model’s
90%
accuracy.
Conclusions:
research
highlights
superior
classification
capabilities
for
diagnosis,
contributing
field
medical
image
analysis.
By
showcasing
efficacy
advanced
deep
learning
architectures,
particularly
context
this
underscores
potential
real-world
clinical
applications.
Ultimately,
our
findings
emphasize
importance
further
exploration
AI-based
diagnostic
tools
improving
healthcare
outcomes.
Journal of Building Engineering,
Год журнала:
2023,
Номер
76, С. 107105 - 107105
Опубликована: Июнь 25, 2023
Crack
detection
in
masonry
façades
is
a
crucial
task
for
ensuring
the
safety
and
longevity
of
buildings.
However,
traditional
methods
are
often
time-consuming,
expensive,
labour-intensive.
In
recent
years,
deep
learning
techniques
have
been
applied
to
detect
cracks
images,
but
these
models
require
large
amounts
annotated
data
achieve
high
accuracy,
which
can
be
difficult
obtain.
this
article,
we
propose
approach
crack
on
brickwork
using
transfer
with
limited
data.
Our
uses
pre-trained
convolutional
neural
network
model
as
feature
extractor,
then
optimised
specifically
detection.
To
evaluate
effectiveness
our
proposed
method,
created
curated
dataset
700
façade
used
500
images
training,
100
validation,
remaining
testing.
Results
showed
that
very
effective
detecting
cracks,
achieving
an
accuracy
F1-score
up
100%
when
following
end-to-end
training
network,
thus
being
promising
solution
building
inspection
maintenance,
particularly
situations
where
limited.
Moreover,
easily
adapted
different
types
façades,
making
it
versatile
tool
maintenance.
The
severity
of
furcation
involvement
(FI)
directly
affected
tooth
prognosis
and
influenced
treatment
approaches.
However,
assessing,
diagnosing,
treating
molars
with
FI
was
complicated
by
anatomical
morphological
variations.
Cone-beam
computed
tomography
(CBCT)
enhanced
diagnostic
accuracy
for
detecting
measuring
defects.
Despite
its
advantages,
the
high
cost
radiation
dose
associated
CBCT
equipment
limited
widespread
use.
aim
this
study
to
evaluate
performance
Vision
Transformer
(ViT)
in
comparison
several
commonly
used
traditional
deep
learning
(DL)
models
classifying
or
without
on
panoramic
radiographs.
A
total
1,568
images
obtained
from
506
radiographs
were
construct
database
models.
This
developed
assessed
a
ViT
model
radiographs,
compared
models,
including
Multi-Layer
Perceptron
(MLP),
Visual
Geometry
Group
(VGG)Net,
GoogLeNet.
Among
evaluated
outperformed
all
others,
achieving
highest
precision
(0.98),
recall
(0.92),
F1
score
(0.95),
along
lowest
cross-entropy
loss
(0.27)
(92%).
also
recorded
area
under
curve
(AUC)
(98%),
outperforming
other
statistically
significant
differences
(p
<
0.05),
confirming
classification
capability.
gradient-weighted
class
activation
mapping
(Grad-CAM)
analysis
revealed
key
areas
that
focused
during
predictions.
DL
algorithms
can
automatically
classify
using
readily
accessible
images.
These
findings
demonstrate
outperforms
tested
highlighting
potential
transformer-based
approaches
significantly
advance
image
classification.
approach
is
expected
reduce
both
financial
burden
patients
while
simultaneously
improving
precision.
Biomedical & Pharmacology Journal,
Год журнала:
2025,
Номер
18(December Spl Edition), С. 203 - 216
Опубликована: Янв. 20, 2025
This
research
delves
into
the
technical
advancements
of
image
segmentation
and
classification
models,
specifically
refined
Pix2Pix
Vision
Transformer
(ViT)
architectures,
for
crucial
task
osteoporosis
detection
using
X-ray
images.
The
improved
model
demonstrates
noteworthy
strides
in
segmentation,
achieving
a
specificity
97.24%
excelling
reduction
false
positives.
Simultaneously,
modified
ViT
especially
MViT-B/16
variant,
exhibit
superior
accuracy
at
96.01%
classifying
cases,
showcasing
their
proficiency
identifying
critical
medical
conditions.
These
models
are
poised
to
revolutionize
diagnosis,
providing
clinicians
with
accurate
tools
early
intervention.
synergies
between
open
avenues
nuanced
approaches
automated
diagnostic
systems,
potential
significantly
improve
clinical
results
contribute
broader
landscape
analysis.
As
remains
prevalent
often
undiagnosed
condition,
insights
from
this
study
hold
substantial
importance
advancing
field,
emphasizing
role
improving
patient
care
health
outcomes.
Scientific Reports,
Год журнала:
2023,
Номер
13(1)
Опубликована: Апрель 1, 2023
Abstract
Coronavirus
2019
(COVID-19)
is
a
new
acute
respiratory
disease
that
has
spread
rapidly
throughout
the
world.
This
paper
proposes
novel
deep
learning
network
based
on
ResNet-50
merged
transformer
named
RMT-Net.
On
backbone
of
ResNet-50,
it
uses
Transformer
to
capture
long-distance
feature
information,
adopts
convolutional
neural
networks
and
depth-wise
convolution
obtain
local
features,
reduce
computational
cost
acceleration
detection
process.
The
RMT-Net
includes
four
stage
blocks
realize
extraction
different
receptive
fields.
In
first
three
stages,
global
self-attention
method
adopted
important
information
construct
relationship
between
tokens.
fourth
stage,
residual
are
used
extract
details
feature.
Finally,
average
pooling
layer
fully
connected
perform
classification
tasks.
Training,
verification
testing
carried
out
self-built
datasets.
model
compared
with
VGGNet-16,
i-CapsNet
MGMADS-3.
experimental
results
show
Test_
acc
97.65%
X-ray
image
dataset,
99.12%
CT
which
both
higher
than
other
models.
size
only
38.5
M,
speed
5.46
ms
4.12
per
image,
respectively.
It
proved
can
detect
classify
COVID-19
accuracy
efficiency.
Diagnostics,
Год журнала:
2024,
Номер
14(10), С. 1049 - 1049
Опубликована: Май 18, 2024
Pulmonary
sarcoidosis
is
a
multisystem
granulomatous
interstitial
lung
disease
(ILD)
with
variable
presentation
and
prognosis.
The
early
accurate
detection
of
pulmonary
may
prevent
progression
to
fibrosis,
serious
potentially
life-threatening
form
the
disease.
However,
lack
gold-standard
diagnostic
test
specific
radiographic
findings
poses
challenges
in
diagnosing
sarcoidosis.
Chest
computed
tomography
(CT)
imaging
commonly
used
but
requires
expert,
chest-trained
radiologists
differentiate
from
malignancies,
infections,
other
ILDs.
In
this
work,
we
develop
multichannel,
CT
radiomics-guided
ensemble
network
(RadCT-CNNViT)
visual
explainability
for
vs.
cancer
(LCa)
classification
using
chest
images.
We
leverage
hand-crafted
radiomics
features
as
input
channels,
3D
convolutional
neural
(CNN)
vision
transformer
(ViT)
feature
extraction
fusion
before
head.
CNN
sub-network
captures
localized
spatial
information
lesions,
while
ViT
long-range,
global
dependencies
between
features.
Through
multichannel
fusion,
our
model
achieves
highest
performance
accuracy,
sensitivity,
specificity,
precision,
F1-score,
combined
AUC
0.93
±
0.04,
0.94
0.08,
0.95
0.05,
0.97,
respectively,
five-fold
cross-validation
study
(n
=
126)
LCa
93)
cases.
A
detailed
ablation
showing
impact
+
compared
or
alone,
input,
also
presented
work.
Overall,
AI
developed
work
offers
promising
potential
triaging
patients
timely
diagnosis
treatment
CT.