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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:

Dataset wrap

title	cv.xpt
Name	PR

Dataset2

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

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.

Dataset wrap

title	cv.xpt
Name	CE

Dataset2

Row	STUDYID	DOMAIN	USUBJID	CESEQ	CETRT	CELOC	VISIT	CE LOC Detail
11	ABCABC	CE	ABC-123	1	aneurysm	thoracic cavity	BASELINE	aortic root
2	ABCABC	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	34	aneurysm	abdominal cavity	BASELINE	Infrarenal artery (Below the kidneys)

...

If both AAA and TAA are found, and modeled as CV:

Dataset wrap

title	cv.xpt
Name	cv

Dataset2

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

The subject had CT scans performed at the chest and abdomen to look for the presence of aneurysms, if there are any:

Dataset wrap

title	cv.xpt
Name	PR

Dataset2

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

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.

Dataset wrap

title	cv.xpt
Name	CE

Dataset2

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)

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.

Dataset wrap

title	cv.xpt
Name	cv

Dataset2

Row	STUDYID	DOMAIN	USUBJID	CVSEQ	CVGRPID	CVTEST	CVORRES	CVORRESU	CVLOC	CVLOCDTL	CVMETHOD	VISITNUM	VISIT	CVDTC	CV Result LOC detail
1	ABC	CV	ABC-456	1	1	Aneurysm Indicator	Y		abdominal cavity		CT SCAN	1	BASELINE	2020-04-27	Infrarenal artery (Below the kidneys)
2	ABC	CV	ABC-456	2	1	Aneurysm Length/Diameter	2	CM	abdominal cavity	Infrarenal artery (Below the kidneys)	CT SCAN	1	BASELINE	2020-04-27
3	ABC	CV	ABC-456	1		Aneurysm Indicator	N		thoracic cavity		CT SCAN	1	BASELINE	2020-04-27