Abstract
Background
Survival
prognosis
of
patients
with
gastric
cancer
(GC)
often
influences
physicians’
choice
their
follow-up
treatment.
This
study
aimed
to
develop
a
positron
emission
tomography
(PET)-based
radiomics
model
combined
clinical
tumor-node-metastasis
(TNM)
staging
predict
overall
survival
(OS)
in
GC.
Methods
We
reviewed
the
information
total
327
pathological
confirmation
GC
undergoing
18
F-fluorodeoxyglucose
(18
F-FDG)
PET
scans.
The
were
randomly
classified
into
training
(
n
=
229)
and
validation
98)
cohorts.
extracted
171
features
from
images
determined
scores
(RS)
using
least
absolute
shrinkage
selection
operator
(LASSO)
random
forest
(RSF).
A
model,
including
RS
TNM
staging,
was
constructed
OS
evaluated
for
discrimination,
calibration,
usefulness.
Results
On
multivariate
COX
regression
analysis,
difference
between
age,
carcinoembryonic
antigen
(CEA),
TNM,
statistically
significant
p
<
0.05).
developed
based
on
results
regression.
had
Harrell’s
concordance
index
(C-index)
0.817
cohort
0.707
performed
better
than
single
staging.
Further
analyses
showed
higher
who
older
0.001)
those
elevated
CEA
0.001).
At
different
stages,
associated
worse
prognosis.
Conclusions
Radiomics
models
RS,
may
provide
new
tools
predicting
International Journal of Biological Sciences,
Год журнала:
2021,
Номер
18(1), С. 261 - 275
Опубликована: Ноя. 10, 2021
MVI
has
significant
clinical
value
for
treatment
selection
and
prognosis
evaluation
in
hepatocellular
carcinoma
(HCC).
We
aimed
to
construct
a
model
based
on
MVI-Related
Genes
(MVIRGs)
risk
assessment
prediction
patients
with
HCC.
This
study
utilized
various
statistical
analysis
methods
prognostic
construction
validation
the
Cancer
Genome
Atlas
(TCGA)
International
Consortium
(ICGC)
cohorts,
respectively.
In
addition,
immunohistochemistry
qRT-PCR
were
used
analyze
identify
of
our
cohort.
After
analyses,
153
differentially
expressed
MVIRGs
identified,
three
key
genes
selected
model.
The
high-risk
group
showed
significantly
lower
overall
survival
(OS),
this
trend
was
observed
all
subgroups:
different
age
groups,
genders,
stages,
grades.
Risk
score
factor
independent
age,
gender,
stage,
grade.
Moreover,
ICGC
cohort
validated
corresponding
TCGA.
cohort,
that
had
higher
expression
levels
HCC
samples
than
normal
controls.
High
scores
recurrence-free
(RFS)
OS,
especially
MVI-positive
samples.
Therefore,
constructed
by
can
reliably
predict
RFS
OS
is
valuable
guiding
Cancers,
Год журнала:
2021,
Номер
13(22), С. 5864 - 5864
Опубликована: Ноя. 22, 2021
Preoperative
prediction
of
microvascular
invasion
(MVI)
is
importance
in
hepatocellular
carcinoma
(HCC)
patient
treatment
management.
Plenty
radiomics
models
for
MVI
have
been
proposed.
This
study
aimed
to
elucidate
the
role
and
evaluate
their
methodological
quality.
The
quality
was
assessed
by
Radiomics
Quality
Score
(RQS),
risk
bias
evaluated
Assessment
Diagnostic
Accuracy
Studies
(QUADAS-2).
Twenty-two
studies
using
CT,
MRI,
or
PET/CT
were
included.
All
retrospective
studies,
only
two
had
an
external
validation
cohort.
AUC
values
ranged
from
0.69
0.94
test
Substantial
heterogeneity
existed,
low,
with
average
RQS
score
10
(28%
total).
Most
demonstrated
a
low
unclear
domains
QUADAS-2.
In
conclusion,
model
could
be
accurate
effective
tool
HCC
patients,
although
has
so
far
insufficient.
Future
prospective
cohort
accordance
standardized
workflow
are
expected
supply
reliable
that
translates
into
clinical
utilization.
World Journal of Gastroenterology,
Год журнала:
2022,
Номер
28(20), С. 2176 - 2183
Опубликована: Май 27, 2022
Hepatocellular
carcinoma
(HCC)
is
the
most
common
primary
liver
cancer,
accounting
for
about
90%
of
cancer
cases.
It
currently
fifth
in
world
and
third
leading
cause
cancer-related
mortality.
Moreover,
recurrence
HCC
common.
Microvascular
invasion
(MVI)
a
major
factor
associated
with
postoperative
HCC.
difficult
to
evaluate
MVI
using
traditional
imaging
modalities.
Currently,
assessed
primarily
through
pathological
immunohistochemical
analyses
tissue
samples.
Needle
biopsy
method
used
confirm
diagnosis
before
surgery.
As
puncture
specimens
represent
just
small
part
tumor,
given
heterogeneity
HCC,
samples
may
yield
false-negative
results.
Radiomics,
an
emerging,
powerful,
non-invasive
tool
based
on
various
modalities,
such
as
computed
tomography,
magnetic
resonance
imaging,
ultrasound,
positron
emission
can
predict
HCC-MVI
status
preoperatively
by
delineating
tumor
and/or
regions
at
certain
distance
from
surface
extract
image
features.
Although
positive
results
have
been
reported
radiomics,
its
drawbacks
limited
clinical
translation.
This
article
reviews
application
preoperative
evaluation
explores
future
research
directions
that
facilitate
Asian Journal of Surgery,
Год журнала:
2021,
Номер
44(9), С. 1143 - 1150
Опубликована: Март 23, 2021
The
efficacy
of
anatomical
resection
(AR)
and
non-anatomical
(NR)
in
the
treatment
hepatocellular
carcinoma
(HCC)
patients
with
microvascular
invasion
(MVI)
remains
unknown.
This
study
compared
safety
outcomes
these
surgical
procedures.
A
systematic
literature
search
was
conducted.
main
were
overall
survival
(OS),
disease-free
(DFS).
Overall
hazard
ratio
(HR)
calculated
from
Kaplan–Meier
plots
using
random-effects
models.
There
no
significant
difference
postoperative
complications
between
AR
NR
groups
(risk
[RR]:
0.92,
95%
confidence
interval
[CI]:
0.72–1.17,
p
=
0.496).
OS
higher
at
1
year
(RR:
0.66,
CI:
0.45–0.98,
0.037),
3
years
0.64,
0.50–0.82,
0.000),
5
0.76,
0.65–0.89,
0.001).
associated
a
rate
(HR:
0.62,
0.47–0.82,
improved
DFS
0.65,
0.52
to
0.82,
0.75,
0.66
0.86,
(95%
0.75
0.94,
0.002).
Compared
NR,
had
advantages
on
HR
0.45
0.91,
0.012).
In
conclusion,
rates
HCC
MVI.
Thus,
for
well-presented
liver
function
which
are
predicted
have
positive
MVI,
is
recommended.
Frontiers in Oncology,
Год журнала:
2022,
Номер
12
Опубликована: Апрель 7, 2022
Background
Microvascular
invasion
(MVI)
is
an
independent
risk
factor
for
postoperative
recurrence
of
hepatocellular
carcinoma
(HCC).
To
perform
a
meta-analysis
to
investigate
the
diagnostic
performance
radiomics
preoperative
evaluation
MVI
in
HCC
and
effect
potential
factors.
Materials
Methods
A
systematic
literature
search
was
performed
PubMed,
Embase,
Cochrane
Library
studies
focusing
on
with
methods.
Data
extraction
quality
assessment
retrieved
were
performed.
Statistical
analysis
included
data
pooling,
heterogeneity
testing
forest
plot
construction.
Meta-regression
subgroup
analyses
reveal
explanatory
factors
[design,
combination
clinical
factors,
imaging
modality,
number
participants,
Quality
Assessment
Diagnostic
Accuracy
Studies
2
(QUADAS-2)
applicability
risk]
performance.
Results
Twenty-two
4,129
patients
prediction
included.
The
pooled
sensitivity,
specificity
area
under
receiver
operating
characteristic
curve
(AUC)
84%
(95%
CI:
81,
87),
83%
78,
87)
0.90
0.87,
0.92).
Substantial
observed
among
(
I²
=94%,
95%
88,
99).
showed
that
all
investigative
covariates
contributed
sensitivity
P
<
0.05).
Combined
MRI,
CT
participants
Subgroup
AUC
estimates
similar
or
MRI.
Conclusion
Radiomics
promising
noninvasive
method
has
high
status.
based
MRI
had
comparable
predictive
HCC.
Prospective,
large-scale
multicenter
methods
will
improve
power
future.
Systematic
Review
Registration
https://www.crd.york.ac.uk/prospero/display_record.php?RecordID=259363
,
identifier
CRD42021259363.