Diagnostics,
Journal Year:
2024,
Volume and Issue:
14(18), P. 2097 - 2097
Published: Sept. 23, 2024
Objectives:
Early
detection
and
accurate
diagnosis
of
lymph
node
metastasis
(LNM)
in
head
neck
cancer
(HNC)
are
crucial
for
enhancing
patient
prognosis
survival
rates.
Current
imaging
methods
have
limitations,
necessitating
new
evaluation
diagnostic
techniques.
This
study
investigates
the
potential
combining
pre-operative
CT
intra-operative
fluorescence
lifetime
(FLIm)
to
enhance
LNM
prediction
HNC
using
primary
tumor
signatures.
Methods:
FLIm
data
were
collected
from
46
patients.
A
total
42
features
924
radiomic
extracted
site
fused.
support
vector
machine
(SVM)
model
with
a
radial
basis
function
kernel
was
trained
predict
LNM.
Hyperparameter
tuning
conducted
10-fold
nested
cross-validation.
Prediction
performance
evaluated
balanced
accuracy
(bACC)
area
under
ROC
curve
(AUC).
Results:
The
model,
leveraging
combined
features,
demonstrated
improved
testing
(bACC:
0.71,
AUC:
0.79)
over
CT-only
0.58,
0.67)
FLIm-only
0.61,
0.72)
models.
Feature
selection
identified
that
subset
10
provided
optimal
predictive
capability.
contribution
analysis
high-pass
low-pass
wavelet-filtered
images
as
well
Laguerre
coefficients
key
predictors.
Conclusions:
Combining
improves
compared
either
modality
alone.
Significance:
underscores
radiomics
more
HNC,
offering
promise
outcomes.
Journal of Computing and Electronic Information Management,
Journal Year:
2025,
Volume and Issue:
16(1), P. 26 - 32
Published: Feb. 25, 2025
Brain
tumor
segmentation
is
a
crucial
task
in
medical
image
analysis,
as
accurate
delineation
of
regions
vital
for
clinical
diagnosis,
treatment
planning,
and
prognosis
assessment.
Traditional
Convolutional
Neural
Network
(CNN)-based
models
have
demonstrated
significant
success
capturing
local
features,
but
they
face
challenges
modeling
global
context,
which
essential
complex
tasks.
This
review
examines
recent
advancements
brain
segmentation,
with
focus
on
CNNs,
Transformers,
Mamba,
Graph
Networks
(GNNs),
well
their
hybrid
models.
critically
evaluates
the
strengths
limitations
each
approach
respect
to
architecture,
accuracy,
real-world
applicability.
Additionally,
it
addresses
key
such
computational
complexity
data
scarcity,
proposes
future
research
directions
enhance
practical
use
these
methods
settings.
IEEE Transactions on Medical Imaging,
Journal Year:
2024,
Volume and Issue:
43(9), P. 3319 - 3330
Published: April 30, 2024
Accurate
segmentation
of
anatomical
structures
in
Computed
Tomography
(CT)
images
is
crucial
for
clinical
diagnosis,
treatment
planning,
and
disease
monitoring.
The
present
deep
learning
methods
are
hindered
by
factors
such
as
data
scale
model
size.
Inspired
how
doctors
identify
tissues,
we
propose
a
novel
approach,
the
Prior
Category
Network
(PCNet),
that
boosts
performance
leveraging
prior
knowledge
between
different
categories
structures.
Our
PCNet
comprises
three
key
components:
category
prompt
(PCP),
hierarchy
system
(HCS),
loss
(HCL).
PCP
utilizes
Contrastive
Language-Image
Pretraining
(CLIP),
along
with
attention
modules,
to
systematically
define
relationships
identified
clinicians.
HCS
guides
distinguishing
specific
organs,
structures,
functional
systems
through
hierarchical
relationships.
HCL
serves
consistency
constraint,
fortifying
directional
guidance
provided
enhance
model's
accuracy
robustness.
We
conducted
extensive
experiments
validate
effectiveness
our
results
indicate
can
generate
high-performance,
universal
CT
segmentation.
framework
also
demonstrates
significant
transferability
on
multiple
downstream
tasks.
ablation
show
methodology
employed
constructing
critical
importance.
be
accessed
at
https://github.com/PKU-MIPET/PCNet.
Medical Physics,
Journal Year:
2024,
Volume and Issue:
51(10), P. 7295 - 7307
Published: June 19, 2024
Head
and
neck
(HN)
gross
tumor
volume
(GTV)
auto-segmentation
is
challenging
due
to
the
morphological
complexity
low
image
contrast
of
targets.
Multi-modality
images,
including
computed
tomography
(CT)
positron
emission
(PET),
are
used
in
routine
clinic
assist
radiation
oncologists
for
accurate
GTV
delineation.
However,
availability
PET
imaging
may
not
always
be
guaranteed.