There are multiple definitions:
directed transfer function(English)
diastolic time fraction(English)
- has been recognized as an important determinant for subendocardial perfusion
- Cardiology, Ratio-based metric
- https://doi.org…eart.00790.2004
diaphragm thickening fraction(English)
- refers to inspiratory support pressure on respiratory effort
- CPAP, OSA, DE, ICU, LUS, RSBI, TPIA
- Respiratory system, Physiology, Ratio-based metric, Ultrasound, Intensive care medicine
- https://doi.org….1159/000535990
- https://doi.org…890-021-01605-4
- https://doi.org…2890-018-0739-9