API Reference

Get Aortic Distensibility by Age

Retrieves reference values for regional aortic distensibility (RAD) based on the subject's gender, age, and measurement site. The data is based on measurements of the aortic root for men and women, typically acquired via sagittal left ventricular outflow tract balanced steady-state free precession (bSSFP) imaging.

Abbreviations:

  • RAD: Regional Aortic Distensibility
  • bSSFP: Balanced Steady-State Free Precession (an MRI sequence)
  • ASC_AORTA: Ascending Aorta, measured at the level of the pulmonary artery bifurcation.
  • PRX_DESC_AORTA: Proximal Descending Aorta

Important Notes:

  • HTTP Status Code: Due to Google Apps Script limitations, all responses are returned with an HTTP 200 OK status. You must inspect the JSON body for an error field to determine if the request was successful.
  • Intended Status: A failed response will include an intended_status field (e.g., 400, 404) to indicate the logical status of the request.
  • Age Matching: The API uses the provided age parameter to find a matching age_cat range (e.g., an age of 29 will match the "20-29" category).
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