This endpoint returns reference values for Left Ventricular Functional and Geometric parameters based on query parameters.

Supported Parameters:

• PFRE
• PFRE_BSA
• PFRA_EDV
• PFRA
• PFRA_BSA
• PFRA_PFRA
• SEPTAL_AVPD
• SEPTAL_AVPD_LL
• LATERAL_AVPD
• LATERAL_AVPD_LL
• SPHERICITY_INDX_DIAS
• SPHERICITY_INDX_SYS
• LVEDD_4Ch
• LVEDD_SAx
• LVESD_4Ch
• LVESD_SAX

Parameter Abbreviations:

• PFR: Peak Filling Rate
• E: Early
• A: Active
• AVPD: Atrioventricular Plane Descent

REQUIRED query parameters are:

• domain: Must be "LV_FG"
• parameter: Must be one of the allowed LV parameter values
• gender: Must be "male" or "female"

Implementation notes for integrators:

• The server MAY return HTTP 200 for all responses and indicate errors in the JSON body.
  If so, include an error and intended_status field in error responses.
• The engine is a router: it dispatches to domain-specific handler functions based on domain.