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Info
titleQuestions 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 scanning the subject from the chest to the 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? For "diagnostic procedures", especially imaging, 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 = chest), or does it mean that the purpose of the CT scan is to scan and create images of the chest? I think these are two different things.

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Info
titleQuestions and Thoughts

Imaging modality for the CV-imaging project:

Coronary angiography:

  1. 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.
  2. Creates images of the entire coronary artery system

Thoracic Thransthoracic Echocardiogram (TEETTE):

  1. 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 as chest TEETTE.
  2. Creates images of the heart.

Transesophageal Echocardiogram (TEE):

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

Cine Angiography:

  1. Done on the chest, again the probe is placed on top of the chest.
  2. creates Creates images of the entire coronary artery system.

If we don't record the location for the procedures above, i,e, PRTRT = Coronary angiography, PRLOC = Chest, then why do chest and abdomen go into PRLOC for CT scan?

A chest CT doesn't mean that a CT is done on the chest, it is a CT scan of the chest,  it creates images of the chest, more precisely the thoracic region. If PRTRT = CT Scan, PRLOC = Chest. The way I read this is that the CT scan is done on the chest, which doesn't make sense.

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


Have I lose my god damn mind????


Dataset wrap
titlecv.xpt
NamePR


Dataset2


Row

STUDYID

DOMAIN

USUBJID

PRSEQ

PRTRT

PRLOC

VISIT

 1  ABCPR  ABC-4561MRITrunk?? or not needed period?
BASELINE



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The problem with the way TU is set up now, which is originally designed for tumor identification and response evaluation, and you only care about "already identified tumors", is that it only allows the creation of a only positive recordrecords. It doesn't allow the creation of a "pertinent negative" record. If I were to model case 2 1 in TU the way TU is designed now, I would lose the ability to represent the negative record for the Thoracic Region as shown above because an aneurysm is not identified in this region. Because when a large AAA is found, the chance of a TAA (or an aneurysm developed elsewhere) is high (the reverse holds true as well), in the presence of a diagnosed large AAA or TAA, it is recommended to also screen for the other. A TAA is synchronous if diagnosed within 2 years from the diagnosis of an AAA. All TAAs diagnosed at a later date were considered metachronous and must have had prior chest imaging that did not show the presence of TAA. 

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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 Note for viewing simplicity, some variables are omitted from the table below.

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