There are multiple definitions:

1. initial reaction time(English)

   • FTT

2. isovolumic relaxation time(English)

   • see Tei index = (ICT + IRT) / ET
   • DCT, DFP, ICT, RR, ET
   • Cardiology

3. item response theory(English)

   • along with CDFA complementary methods for the analysis of the psychometric properties of psychiatric measures that purport to measure latent constructs. Common procedure for assessing DIF
   • DIF, MH, CDFA, sMFQ, ISI, MFRM, OSDI, MGRS, CTT, NSKQ
   • Statistics, Scoring systems/scales, Psychology
   • https://en.wiki…tem_functioning
   • https://doi.org….1993.tb00543.x
   • https://doi.org…0802-006-9027-x
   • https://doi.org…67/iovs.11-8027
   • https://doi.org/10.1037/a0038443
   • https://doi.org…2970-017-0182-y

4. integrated risk tool(English)

   • combines polygenic risk score with established risk tools (either the American Heart Association/American College of Cardiology pooled cohort equations or UK QRISK3)
   • AHA, CAD, GWAS, PCE, PRS
   • Cardiology, Risk factor
   • https://doi.org…CGEN.120.003304

5. Interactive Response Technology(English)

   • SERENADE, SERENADE-OLE, SFU, TPG, WU, AE, BNP, DPG, EF, EOS, EOT, ERA, HF, HFpEF, KCCQ, LA, LV, NT-proBNP, PA, PVD, PVR, RV, SAE
   • Cardiology, Pathology, Hemodynamics
   • https://doi.org…LURE.123.011381