| QRS-T | the angle between the QRS and T vectors in vectorcardiography [angle] |
|---|---|
| VCG | vectorcardiogram, vectorcardiography; voiding cystography, voiding cystourethrography |
| Isa | spatial average intensity [pulse] |
| Isapa | spatial average pulse average |
| Isapt | spatial peak, temporal average intensity [pulse] |