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There are many ways to ask if someone has an aneurysm. If the person has prior history of a particular type of aneurysm, say, aortic aneurysm, and the physician suspects that the patient suffers from another one, then specialized imaging instruments that are location-specific can be used. Examples are TRANSESOPHAGEAL ECHOCARDIOGRAPHY or TRANSTHORACIC ECHOCARDIOGRAPHY, they are used to look for abnormalities in the chest and in the abdomen. The original data elements provided to us by DUKE and ACC, from which we created the examples in the CV-imaging TAUG, whether a patient has an aneurysm is asked in a pre-specified fashion? . The questions would look like the following:

Does the patient have : Aortic aneurysm? Aortic arch aneurysm? Suprarenal Abdominal aneurysm? etc.

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Dataset wrap
titlecv.xpt
Namecv


Rowcaps


Rows 1-2:

Show subject ABC-123 has a single aortic aneurysm from a chest MRI scan.

Rows 3:

Shows the said aneurysm is 7.5cm in length (diameter), which is measured from the aortic arch to the abdominal aorta.
Rows 4-5:Show subject ABC-456 is found to have aneurysms in two locations from a whole-body MRI Scan: RENAL ARTERY and THORACIC AORTA.


 

Dataset2


Row

STUDYID

DOMAIN

USUBJID

CVSEQ

CVGRPID

CVTEST

CVORRES

 CVORRESU

CVLOC

CVMETHOD

VISITNUM

VISIT

CVDTC

 CVRESLOC 1CVRESLOC 2

CVRLOCTX

 1  ABC CV  ABC-123 11Aneurysm Indicator Y CHESTMRI1BASELINE 2020-04-27  
 
 2  ABC CV  ABC-123 21Number of Aneurysms 1 CHESTMRI1BASELINE 2020-04-27  
 
 3  ABC CV  ABC-123 31Aneurysm Length/Diameter 7.5 CMCHESTMRI1BASELINE 2020-04-27 AORTA
Aortic Arch to Abdominal Aorta
4  ABC CV  ABC-45612Aneurysm IndicatorY
BODYMRI1BASELINE2020-04-27



5  ABC CV  ABC-45622Number of Aneurysms2
BODYMRI1BASELINE2020-04-27
RENAL ARTERYTHORACIC AORTA

 





 From the CV-imaging project we also encountered use-cases where we need sub-loc variables to help to further specify the detailed, more granular locations where a test is performed. Those values are indeed location information that should NOT be pre-coordinated into the TEST itself, but are also inappropriate for LOC.

 

 

This example shows the minor axis cross-sectional diameter measurements of the left and right ventricle of the heart, at end ventricular diastole.

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