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The subject had CT scans performed on the chest and abdomen.

Are chest and abdomen really location of the procedure? See questions and comments under Case 2.

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

An evaluator examines the images of the thoracic and abdominal regions produced by the CT scan and decides whether TAA and AAA are present as well as their location. Modeling both TAA and AAA in the CV domain, note for viewing simplicity, some variables are omitted from the table below.

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Info

title	Questions and Thoughts

I wonder what the LOC truly is in this procedure, or whether you need a value in PRLOC at all, because essentially, you are doing a Chest MRI, followed by abdominal MRI (or vise versa) - the MRI scans and take takes cross-sectional pictures of your chest and abdomen. If the scanning is done on the same day in one visit, would you consider the scan of the chest a separate procedure from the scan of the abdomen? This is why for "diagnostic procedures", I think the location where the procedure is done is irrelevant. When we say Chest CT, or Chest MRI, does this mean the CT scan is done on the chest (hence PRLOC), or does it mean that the purpose of the CT scan is to scan and create images of the chest, aka the thoracic region? I think this is confusing.

Info

title	Questions and Thoughts

Coronary angiography:

Done on the chest area, the probe rotates around the chest of the subject, but there is no such a thing as "chest Coronary angiography", it is simply called Coronary angiography.
Creates images of the entire coronary artery system

Thoracic Echocardiogram (TEE):

Done on the chest and upper abdominal wall. The transducer is placed on various parts of the chest and upper belly to get different views of the heart. Again, there is no such a thing chest TEE.
Creates images of the heart

Transesophageal Echocardiogram (TEE):

Done from the inside of the Esophagus.
Creates images of the heart.

A chest CT doesn't mean that a CT is done on the chest (not PRLOC), it is a CT scan that creates images of the chest, more precisely the thoracic region.

An abdominal CT doesn't mean a CT done on the abdomen (not PRLOC), it is a CT scan that creates images of the abdominal region.

Dataset wrap

title	cv.xpt
Name	PR

Dataset2

Row	STUDYID	DOMAIN	USUBJID	PRSEQ	PRTRT	PRLOC	VISIT
1	ABC	PR	ABC-456	1	MRI	Trunk	BASELINE

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Dataset wrap

title	cv.xpt
Name	TU

Rowcaps

Row 1:	An aneurysm is present in the left renal artery.
Row 2:	An aneurysm is present in the Infrarenal Aorta

Dataset2

Row	STUDYID	DOMAIN	USUBJID	TUSEQ	TUGRPID	TULNKID	TUTEST	TUORRES	TULOC	TULAT	TUMETHOD	VISITNUM	VISIT	TUDTC
3	ABC	TU	ABC-456	3	1	Aneurysm 1	Aneurysm Identification	Target	Renal Artery	Left	MRI	1	BASELINE	2020-04-27
5	ABC	TU	ABC-456	5	2	Aneurysm 2	Aneurysm Location/Identification	Target	Infrarenal Aorta		MRI	1	BASELINE	2020-04-27

Info

title	Questions and Thoughts

Coronary angiography:

Done on the chest area, the probe rotates around the chest of the subject, but there is no such a thing as "chest Coronary angiography", it is simply called Coronary angiography.
Creates images of the entire coronary artery system

Thoracic Echocardiogram (TEE):

Done on the chest and upper abdominal wall. The transducer is placed on various parts of the chest and upper belly to get different views of the heart. Again, there is no such a thing chest TEE.
Creates images of the heart

Transesophageal Echocardiogram (TEE):

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