There are many types of Aortic Aneurysms, the two major types are:
TAA: thoracic aortic aneurysm, may further be sub-classified based on location:
Ascending aortic aneurysm
Aortic arch aneurysm
Descending aortic aneurysm
Aneurysm that straddles multiple portions of the aorta (i.e. from aortic arch to descending aorta)
AAA: abdominal aortic aneurysm, may further be:
Above the renal artery
Below the renal artery
In the renal artery
You don’t know if someone has aortic aneurysms. You may do screening tests based on family history. Sometimes, some symptoms may be experienced such as back pain, chest pain, pain in the lower abdomen that may be indicative of aortic aneurysm. If someone does have TAA, the possibility of synchronous and metachronous TAAs may be present. So you look at both chest and abdomen. If AAA is present but TAA is not, you make a note too.
Case 1 - Subject has both TAA and AAA
The subject had CT scans performed at the chest and abdomen to look for the presence of aneurysms, if there are any:
$titleHtml
pr.xpt
Row
STUDYID
DOMAIN
USUBJID
PRSEQ
PRTRT
PRLOC
VISIT
1
ABC
PR
ABC-123
1
CT SCAN
CHEST
BASELINE
2
ABC
PR
ABC-123
2
CT SCAN
ABDOMEN
BASELINE
$warningHtml
If both AAA and TAA are found, and modeled as CE:
Note: in this case CE works because both TAA and AAA are detected so you would have separate CE record for each "identified" aneurysm.
ce.xpt
ce.xpt
Row
STUDYID
DOMAIN
USUBJID
CESEQ
CETRT
CELOC
VISIT
CE LOC Detail
1
ABC
CE
ABC-123
1
aneurysm
thoracic cavity
BASELINE
aortic root
2
ABC
CE
ABC-123
2
aneurysm
thoracic cavity
BASELINE
Aortic arch to descending aorta
3
ABC
CE
ABC-123
3
aneurysm
abdominal cavity
BASELINE
Left renal artery
4
ABC
CE
ABC-123
4
aneurysm
abdominal cavity
BASELINE
Infrarenal artery (Below the kidneys)
Dataset Debug Message
There are eight leading, trailing, or non-breaking spaces in the dataset.
If both AAA and TAA are found, and modeled as CV:
$titleHtml
cv.xpt
Row
STUDYID
DOMAIN
USUBJID
CVSEQ
CVGRPID
CVTEST
CVORRES
CVORRESU
CVLOC
CVLAT
CVLOCDTL
CVMETHOD
VISITNUM
VISIT
CVDTC
CV RES LOC
CV RES LAT
CV Result LOC detail
1
ABC
CV
ABC-123
1
1
Aneurysm Indicator
Y
thoracic cavity
CT SCAN
1
BASELINE
2020-04-27
Aorta
2
ABC
CV
ABC-123
2
1
Number of Aneurysms
2
thoracic cavity
CT SCAN
1
BASELINE
2020-04-27
Aorta
3
ABC
CV
ABC-123
3
1
Aneurysm Length/Diameter
2
CM
aorta
CT SCAN
1
BASELINE
2020-04-27
Aortic root
3
ABC
CV
ABC-123
4
1
Aneurysm Length/Diameter
7.5
CM
aorta
CT SCAN
1
BASELINE
2020-04-27
Aortic Arch to Descending Aorta
4
ABC
CV
ABC-456
1
2
Aneurysm Indicator
Y
abdominal cavity
CT SCAN
1
BASELINE
2020-04-27
RENAL ARTERY
LEFT
5
ABC
CV
ABC-456
2
2
Aneurysm Length/Diameter
3
CM
renal artery
left
CT SCAN
1
BASELINE
2020-04-27
6
ABC
CV
ABC-456
3
3
Aneurysm Indicator
Y
abdominal cavity
CT SCAN
1
BASELINE
2020-04-27
Infrarenal artery (Below the kidneys)
7
ABC
CV
ABC-456
4
3
Aneurysm Length/Diameter
2
CM
abdominal cavity
Infrarenal artery (Below the kidneys)
CT SCAN
1
BASELINE
2020-04-27
$warningHtml
Case 2 - Subject has AAA but TAA is not found
The subject had CT scans performed at the chest and abdomen to look for the presence of aneurysms, if there are any:
$titleHtml
pr.xpt
Row
STUDYID
DOMAIN
USUBJID
PRSEQ
PRTRT
PRLOC
VISIT
1
ABC
PR
ABC-456
1
CT SCAN
CHEST
BASELINE
2
ABC
PR
ABC-456
2
CT SCAN
ABDOMEN
BASELINE
$warningHtml
If AAA is found but TAA is not:
a CE record for AAA will be created;
a CE record for TAA will not be created - the fact that synchronous TAA is not detected, this information is lost. But a procedure of chest CT scan was performed, what came off of that procedure? we will never know.
ce.xpt
ce.xpt
Row
STUDYID
DOMAIN
USUBJID
CESEQ
CETRT
CELOC
VISIT
CE LOC Detail
1
ABC
CE
ABC-456
1
aneurysm
abdominal cavity
BASELINE
Infrarenal artery (Below the kidneys)
Dataset Debug Message
There are two leading, trailing, or non-breaking spaces in the dataset.
If I were to model this in CV, I could show that AAA is detected along with its diameter measurement. On top of that, TAA is not detected.