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Estimated radiation exposure and cancer risk from CT and PET/CT scans in patients with lymphoma.
[hodgkin lymphoma, classical]
The
purpose
of
this
study
was
to
estimate
total
effective
dose
and
cancer
risk
related
to
treatment
monitoring
and
surveillance
computed
tomography
(
CT
)
scans
in
a
cohort
of
patients
diagnosed
with
lymphoma
.
76
patients
with
head
,
neck
,
chest
,
abdomen
or
pelvis
CT
and
whole-body
positron
emission
tomography
(
PET
)
/
CT
were
identified
from
an
institutional
lymphoma
database
;
this
included
54
(
71
%
)
patients
with
non-
Hodgkin
and
22
(
29
%
)
patients
with
classical
Hodgkin
lymphoma
.
Average
treatment
and
surveillance
periods
were
8
months
(
range
,
3
-
14
mo
)
and
23
months
(
range
,
1
-
40
mo
)
,
respectively
.
Radiation
exposure
was
estimated
from
the
dose-length
product
(
DLP
)
for
CT
scans
and
milli-
Curies
and
DLP
for
PET
/
CT
scans
.
Cancer
risk
was
estimated
using
the
Biological
Effects
of
Ionizing
Radiation
model
.
During
their
treatment
period
,
45
patients
had
161
CT
exams
and
39
patients
had
73
PET
/
CT
exams
.
Mean
effective
dose
was
39
.
3
mSv
(
range
,
7
.
1
-
100
mSv
)
.
During
the
surveillance
period
,
60
patients
had
378
CT
exams
and
25
patients
had
39
PET
/
CT
exams
.
Mean
effective
dose
was
53
.
2
mSv
(
range
,
2
.
6
-
154
mSv
)
.
Seventeen
of
76
(
22
.
4
%
)
patients
had
total
cumulative
doses
greater
than
100
mSv
.
The
mean
increase
in
estimated
cancer
risk
was
0
.
40
%
;
the
greatest
estimated
risk
to
any
one
patient
was
1
.
19
%
.
Mean
total
effective
dose
and
mean
estimated
cancer
risk
were
low
in
patients
with
lymphoma
undergoing
serial
imaging
,
suggesting
that
theoretical
risks
of
radiation-induced
cancer
need
not
be
a
major
consideration
in
radiologic
follow-up
.
Diseases
Validation
Diseases presenting
"cancer"
symptom
achondroplasia
acute rheumatic fever
adrenal incidentaloma
alpha-thalassemia
benign recurrent intrahepatic cholestasis
cadasil
canavan disease
carcinoma of the gallbladder
cholangiocarcinoma
coats disease
congenital adrenal hyperplasia
congenital diaphragmatic hernia
cowden syndrome
cushing syndrome
cutaneous mastocytosis
dedifferentiated liposarcoma
dystrophic epidermolysis bullosa
epidermolysis bullosa simplex
erdheim-chester disease
erythropoietic protoporphyria
esophageal adenocarcinoma
esophageal carcinoma
esophageal squamous cell carcinoma
familial hypocalciuric hypercalcemia
familial mediterranean fever
gm1 gangliosidosis
heparin-induced thrombocytopenia
hereditary cerebral hemorrhage with amyloidosis
hirschsprung disease
hodgkin lymphoma, classical
inclusion body myositis
junctional epidermolysis bullosa
kabuki syndrome
kallmann syndrome
kindler syndrome
lamellar ichthyosis
liposarcoma
locked-in syndrome
lymphangioleiomyomatosis
monosomy 21
neuralgic amyotrophy
oculocutaneous albinism
oligodontia
oral submucous fibrosis
papillon-lefèvre syndrome
pendred syndrome
pleomorphic liposarcoma
primary effusion lymphoma
proteus syndrome
pyomyositis
pyruvate dehydrogenase deficiency
severe combined immunodeficiency
sneddon syndrome
systemic capillary leak syndrome
triple a syndrome
von hippel-lindau disease
waldenström macroglobulinemia
well-differentiated liposarcoma
werner syndrome
wiskott-aldrich syndrome
wolf-hirschhorn syndrome
x-linked adrenoleukodystrophy
This symptom has already been validated