Rare Diseases Symptoms Automatic Extraction
Home
A random Abstract
Our Project
Our Team
Adrenal Incidentaloma triage with single-source (fast-kilovoltage switch) dual-energy CT.
[adrenal incidentaloma]
The
purpose
of
this
article
is
to
evaluate
single
-source
dual-energy
CT
(
DECT
)
for
distinguishing
benign
and
indeterminate
adrenal
nodules
,
with
attention
to
the
effects
of
phase
of
IV
contrast
enhancement
.
A
retrospective
review
revealed
273
contrast-enhanced
abdominal
DECT
examinations
from
November
2009
through
March
2012
.
Fifty
adrenal
nodules
0
.
8
cm
or
larger
were
identified
in
41
patients
(
22
women
and
19
men
;
average
age
,
66
years
;
age
range
,
36
-
88
years
)
.
CT
postprocessing
and
measurements
were
independently
performed
by
two
radiologists
(
readers
1
and
2
)
for
each
nodule
,
as
follows
:
attenuation
(
in
Hounsfield
units
)
on
true
unenhanced
images
;
contrast-enhanced
attenuation
(
in
Hounsfield
units
)
on
monochromatic
spectral
images
at
40
,
75
,
and
140
keV
;
and
contrast-enhanced
material
density
(
in
milligrams
per
milliliter
)
on
virtual
unenhanced
images
.
Nodules
were
classified
as
benign
(
<
10
HU
)
and
indeterminate
(
≥
10
HU
)
according
to
true
unenhanced
images
.
Interreader
agreement
regarding
benign
and
indeterminate
nodules
was
high
(
κ
=
0
.
92
;
95
%
CI
,
0
.
8
-
1
.
0
)
.
At
140
keV
,
the
attenuation
of
benign
nodules
was
significantly
lower
(
reader
1
,
7
.
0
±
12
.
5
HU
;
reader
2
,
7
.
8
±
9
.
2
HU
)
than
that
of
indeterminate
nodules
(
reader
1
,
15
.
7
±
20
.
5
HU
[
p
=
0
.
004
]
;
reader
2
,
17
.
5
±
13
.
4
HU
[
p
<
0
.
0001
]
)
.
On
virtual
unenhanced
images
,
benign
nodules
had
significantly
lower
material
density
(
reader
1
,
992
.
4
±
9
.
9
mg
/
mL
;
reader
2
,
992
.
7
±
9
.
6
mg
/
mL
)
than
did
indeterminate
nodules
(
reader
1
,
1001
.
1
±
20
.
5
mg
/
mL
[
p
=
0
.
038
]
;
reader
2
,
1007
.
6
±
13
.
4
mg
/
mL
[
p
<
0
.
0001
]
)
.
DECT
tools
can
mathematically
subtract
iodine
or
minimize
its
effects
in
high
-energy
reconstructions
,
approximating
unenhanced
imaging
and
potentially
reducing
the
need
for
additional
studies
to
triage
adrenal
nodules
detected
on
contrast-enhanced
DECT
examinations
.
Diseases
Validation
Diseases presenting
"with attention to the effects of phase of iv contrast enhancement"
symptom
adrenal incidentaloma
You can validate or delete this automatically detected symptom
Validate the Symptom
Delete the Symptom