Dual-energy
CT
(DECT)
imaging
has
broadened
the
potential
of
by
offering
multiple
postprocessing
datasets
with
a
single
acquisition
at
more
than
one
energy
level.
DECT
shows
profound
capabilities
to
improve
diagnosis
based
on
its
superior
material
differentiation
and
quantitative
value.
However,
dual
remains
relatively
untapped,
possibly
due
intricate
workflow
intrinsic
technical
limitations
DECT.
Knowing
clinical
advantages
dual-energy
recognizing
pitfalls
is
neces-sary
for
an
appropriate
use.
The
aims
this
paper
are
review
physical
basis
analysis,
discuss
in
dif-ferent
scenarios,
constraints
labeling
quantification,
evaluate
cutting-edge
applications
imaging,
including
artificial
intelligence,
qualitative
biomarkers,
DECT-derived
radiomics
radioge-nomics
La radiologia medica,
Journal Year:
2024,
Volume and Issue:
129(7), P. 1038 - 1047
Published: May 14, 2024
Dual-energy
CT
stands
out
as
a
robust
and
innovative
imaging
modality,
which
has
shown
impressive
advancements
increasing
applications
in
musculoskeletal
imaging.
It
allows
to
obtain
detailed
images
with
novel
insights
that
were
once
the
exclusive
prerogative
of
magnetic
resonance
Attenuation
data
obtained
by
using
different
energy
spectra
enable
provide
unique
information
about
tissue
characterization
addition
well-established
strengths
evaluation
bony
structures.
To
understand
clearly
potential
this
radiologists
must
be
aware
technical
complexity
tool,
ways
acquire
several
algorithms
can
applied
daily
clinical
practice
for
research.
Concerning
imaging,
dual-energy
gained
more
space
evaluating
crystal
arthropathy,
bone
marrow
edema,
soft
structures,
including
tendons
ligaments.
This
article
aims
analyze
discuss
role
exploring
aspects,
implications
possible
perspectives
technique.
Journal of Imaging,
Journal Year:
2024,
Volume and Issue:
10(7), P. 154 - 154
Published: June 26, 2024
Dual-energy
CT
(DECT)
imaging
has
broadened
the
potential
of
by
offering
multiple
postprocessing
datasets
with
a
single
acquisition
at
more
than
one
energy
level.
DECT
shows
profound
capabilities
to
improve
diagnosis
based
on
its
superior
material
differentiation
and
quantitative
value.
However,
dual-energy
remains
relatively
untapped,
possibly
due
intricate
workflow
intrinsic
technical
limitations
DECT.
Knowing
clinical
advantages
recognizing
pitfalls
is
necessary
for
an
appropriate
use.
The
aims
this
paper
are
review
physical
bases
analysis,
discuss
in
different
scenarios,
constraints
labeling
quantification,
evaluate
cutting-edge
applications
imaging,
including
artificial
intelligence,
qualitative
biomarkers,
DECT-derived
radiomics
radiogenomics.
Diagnostics,
Journal Year:
2025,
Volume and Issue:
15(2), P. 180 - 180
Published: Jan. 14, 2025
Background:
This
study
aims
to
evaluate
the
impact
of
various
weighting
factors
(WFs)
on
quality
weighted
average
(WA)
dual-energy
computed
tomography
(DECT)
non-contrast
brain
images
and
determine
optimal
WF
value.
Because
they
simulate
standard
CT
images,
0.4-WA
reconstructions
are
routinely
used.
Methods:
In
initial
phase
research,
quantitative
qualitative
analyses
WA
DECT
an
anthropomorphic
head
phantom,
utilizing
WFs
ranging
from
0
1
in
0.1
increments,
were
conducted.
Based
phantom
findings,
0.4,
0.6,
0.8
chosen
for
patient
analyses,
which
identically
carried
out
85
patients
who
underwent
DECT.
Three
radiologists
performed
subjective
analyses.
Results:
Quantitative
image
analysis
revealed
best
gray-to-white
matter
contrast-to-noise
ratio
(CNR)
at
highest
minimal
noise
artifacts
lowest
values.
However,
deemed
non-diagnostic
by
all
three
readers.
Two
readers
found
0.6-WA
significantly
superior
(p
<
0.001),
while
reader
them
be
equally
good
=
0.871).
All
agreed
that
0.8-WA
exhibited
quality.
Conclusions:
conclusion,
demonstrated
over
recommended
routine
Medical Physics,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 11, 2025
Abstract
Background
Chest
radiography
is
a
widely
used
medical
imaging
modality
for
diagnosing
chest‐related
diseases.
However,
anatomical
structure
overlap
hinders
accurate
lesion
detection.
While
the
dual‐energy
x‐ray
technique
addresses
this
issue
by
separating
soft‐tissue
and
bone
images
from
an
original
chest
radiograph,
scattered
radiation
remains
significant
challenge
in
decomposition
image
quality.
Purpose
This
work
aims
to
conduct
material
(DEMD)
using
two‐dimensional
(2D)
crisscrossed
anti‐scatter
grid
improve
quality
effectively
removing
radiation.
Methods
A
2D
graphite‐interspaced
with
strip
density
of
N
=
1.724
lines/mm
ratio
r
6:1
was
fabricated
high‐precision
sawing
process.
The
characteristics
were
evaluated
IEC
standard
fixture.
2D‐grid‐based
DEMD
process,
which
involves
acquisition
low‐
high‐kV
radiographs
grid,
generation
pairwise
function
calibration
wedge
phantom,
function,
implemented,
followed
software‐based
artifact
reduction.
Experiments
conducted
on
commercially
available
phantom
system
operating
at
two
tube
voltages
70
120
kVp.
proposed
conventional
subtraction
methods
compared
cases
no
scatter
correction,
1D
(
8.475
12:1),
grid.
Results
demonstrated
superior
removal
ability
transmission
6.34%
selectivity
9.67,
representing
2.6‐fold
decrease
2.7‐fold
improvement
over
respectively.
Compared
other
competitive
methods,
method
considerably
improved
quality,
lung
visibility
selective
images.
Conclusions
yielded
high‐quality
radiation,
demonstrating
potential
improving
detection
clinical
practice.
Current Radiology Reports,
Journal Year:
2023,
Volume and Issue:
11(12), P. 161 - 176
Published: Sept. 11, 2023
Abstract
Purpose
of
the
Review
This
review
article
aims
to
show
actual
role
Imaging,
especially
DECT
(Dual
Energy
CT),
in
recognition
renal
calculi.
Recent
Findings
CT
and
particular
have
some
implications
stone
disease;
is
considered
gold-standard
diagnosis
case
acute
flank
pain
caused
by
nephrolithiasis,
better
than
ultrasound,
that
represent
first
approach,
specific
cases.
instead
these
days,
has
increase
a
very
role.
Summary
About
12%
world’s
population
will
experience
urinary
stones,
50%
affected
people
recurrence
within
10
years
after
their
diagnosis.
There
are
many
different
types
calculi,
could
form
stay
or
then
goes
localize
anatomical
site
system:
kidney,
ureters,
bladder,
urethra.
Calculi,
with
high
dimensions,
cause
typical
pain,
also
known
as
colic.
The
precise
formation
still
unknown,
it
frequently
believed
mineral
deposition
on
nidus
mucoprotein
matrix
what
causes
them
form.
preferred
Imaging
method
for
detecting
stones
ultrasonography
(used
like
approach),
Computed
Tomography
(gold
standard),
more
rapid
if
“low-dose
CT”.
In
Dual
useful
determine
composition
calculation.
fact,
effective
single-energy
CT;
creates
separation
from
iodine;
allows
measures
differentiation
urate
others
(even
at
low
doses).
Investigative Radiology,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Aug. 1, 2024
Photon-counting
detectors
(PCDs)
have
emerged
as
one
of
the
most
influential
technical
developments
for
medical
imaging
in
recent
memory.
Surpassing
conventional
systems
with
energy-integrating
detector
technology
many
aspects,
PCD-CT
scanners
provide
superior
spatial
resolution
and
dose
efficiency
all
radiological
subspecialities.
Demanding
detailed
display
trabecular
microarchitecture
extensive
anatomical
coverage
frequently
within
same
scan,
musculoskeletal
(MSK)
particular
can
be
a
beneficiary
PCD-CT's
remarkable
performance.
Since
provides
users
plethora
customization
options
both
image
acquisition
reconstruction,
however,
MSK
radiologists
need
to
familiar
scanner
unlock
its
full
potential.
From
filter-based
spectral
shaping
artifact
reduction
over
field-of-view
ultra-high-resolution
scans
postprocessing
single-
or
dual-source
multienergy
data,
almost
every
task
met
an
optimized
approach
PCD-CT.
The
objectives
this
review
were
give
overview
promising
applications
date,
state
current
limitations,
highlight
directions
future
research
developments.
European Radiology,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 27, 2024
Abstract
Objectives
This
study
evaluates
the
advantages
in
diagnostic
accuracy,
confidence,
and
reading
time
of
additional
dual-energy
CT-derived
reconstructions
for
assessing
acute
bowel
ischemia.
Methods
materials
retrospective
includes
25
patients
with
surgically
proven
ischemia
gender-
age-matched
controls
who
underwent
biphasic
abdominal
CT.
Two
fellowship-trained
radiologists
two
residents
evaluated
all
cases
without
iodine
maps
virtual
non-contrast
images.
Diagnostic
confidence
was
rated
on
a
10-point
Likert
scale.
Reading
recorded.
The
inter-reader
agreement
assessed
using
Fleiss’
kappa.
Sensitivity
specificity
were
compared
McNemar’s
test,
reader
times
Wilcoxon
signed-rank
test.
Results
For
conventional
images
alone,
moderate
(
κ
=
0.58),
sensitivity
77%
(95%
CI:
67.5–84.8%)
90%
82.4–95.1%).
Adding
CT
images,
increased
to
substantial
0.69),
significantly
89%
81.2–94.4%,
p
0.02),
while
non-significantly
93%
86.1–97.1%,
0.51).
from
8
(IQR:
6–8)
9
8–9)
<
0.01).
Equivalent
accuracy
increases
observed
resident
radiologists.
A
non-significant
increase
mean
per
case
196
s
201
0.30).
Conclusion
Additional
increasing
when
evaluating
suspected
Both
experienced
readers
benefit
Key
Points
Question
There
are
too
few
clinical
studies
(DECT)
recommend
its
use
.
Findings
DECT-derived
virtual-non-contrast
maintaining
high
mesenteric
Clinical
relevance
Dual-energy
should
be
used
investigate
can
independent
experience
