Feasibility of very low iodine dose aortoiliac CT angiography using dual-source photon-counting detector CT
European Journal of Radiology,
Год журнала:
2025,
Номер
183, С. 111919 - 111919
Опубликована: Янв. 13, 2025
To
evaluate
the
feasibility
of
aortoiliac
CT-Angiography
(CTA)
using
dual-source
photon-counting
detector
(PCD)-CT
with
minimal
iodine
dose.
This
IRB-approved,
single-center
prospective
study
enrolled
patients
indications
for
CTA
from
December
2022
to
March
2023.
All
scans
were
performed
a
first-generation
PCD-CT.
Images
acquired
fast
pitch
and
full
spectral
capabilities
(collimation
144
×
0.4
mm).
The
contrast
protocol
included
mixture
sodium
chloride
iodinated
agent
(Iopromide,
total
dose:
9.5-9.8
g).
Virtual
monoenergetic
images
(VMIs)
reconstructed
at
40,
50,
60,
68
keV.
Two
blinded
radiologists
evaluated
image
quality
on
4-point
scale.
Attenuation
was
measured
across
eight
regions
in
aorta
iliac
arteries,
contrast-to-noise
ratio
(CNR)
calculated.
Statistical
comparisons
repeated
measures
ANOVA
Bonferroni
post-hoc
tests.
final
cohort
consisted
39
subjects
(mean
age:
69.6
±
9.6
years;
30.8
%
female).
VMI
40
keV
provided
significantly
higher
attenuation:
478
114
HU,
compared
50
(331
74
HU),
60
(241
51
(190
48
HU)
(p
<
0.01).
translated
increased
CNR
reconstructions
(11.8
3.9),
followed
by
(9.1
3.0),
(7.0
2.3),
(6.1
1.9)
Subjective
rated
excellent
(4
[3,4]),
though
associated
highest
noise
(38
7.4
p
=
0.02).
Aortoiliac
PCD-CT
achieved
high
attenuation
CNR,
enabling
effective
imaging
only
9.8
g
iodine.
Язык: Английский
Klinische Anwendung der kardialen Computertomographie
Herz,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 25, 2025
Язык: Английский
Semiquantitative metrics of coronary artery disease burden: Intra-individual comparison between ultrahigh-resolution photon-counting detector CT and energy-integrating detector CT
Journal of cardiovascular computed tomography,
Год журнала:
2025,
Номер
unknown
Опубликована: Май 1, 2025
Язык: Английский
Brain Health in Neuroradiology
Clinical and Translational Neuroscience,
Год журнала:
2024,
Номер
9(1), С. 1 - 1
Опубликована: Дек. 31, 2024
Neuroradiology,
as
a
modern
branch
of
the
neurosciences
and
radiological
sciences,
has
an
impact
on
global
health,
particularly
brain
health.
On
one
hand,
neuroradiology
directly
impacts
diseases
nervous
system,
such
stroke
inflammatory
diseases,
by
providing
all-in-one
package
combining
imaging,
diagnosis,
treatment,
follow-up.
This
been
impacted
continuous
evolution
over
last
decades
both
diagnostic
interventional
tools
in
parallel:
this
was
case
stroke,
where
endovascular
treatment
followed
closely
developments
fast
MRI
techniques
multi-slice
CT
imaging.
Additionally,
brain,
well
tumors
central
can
be
imaged
localized
order
to
set
place
early
diagnosis
initiate
treatment.
Neurodegenerative
Alzheimer’s
disease,
which
options
are
appearing
horizon,
also
benefit
from
use
neuroimaging
techniques.
other
plays
important
role
prevention
prediction
helps
building
up
so-called
digital
twin,
often
birth
till
late
life.
practice
itself
is
evolving
not
only
improve
patient
health
but
practitioners
themselves.
By
improving
overall
work
environment
also,
neuroradiologists
will
working
under
better
conditions
suffer
less
fatigue
burn-out,
thereby
service
patients
population.
using
radiation
for
tests
shifting
that
rely
more
either
magnetic
resonance
or
ultra-sound
techniques,
load
population
decrease.
Furthermore,
contrast,
gadolinium,
shown
result
fewer
deposits
brains
patients,
pollution
at
ocean
level,
thus
contributing
general
well-being.
implementation
artificial
intelligence
many
levels
chain
beneficial
physicians.
In
paper,
we
discuss
potential
just
neuroradiologist
promoters
Язык: Английский