Table 2. Echocardiographic Characteristics.
Parameters | Mean ± SD | Percentile | Min | Max | ||||
---|---|---|---|---|---|---|---|---|
5 | 25 | 50 | 75 | 95 | ||||
r E, cm/s a | 0.57 ± 0.08 | 0.44 | 0.52 | 0.57 | 0.62 | 0.7 | 0.4 | 0.8 |
r A, cm/s | 0.44 ± 0.08 | 0.32 | 0.37 | 0.43 | 0.5 | 0.59 | 0.23 | 0.65 |
rEDT, m/s | 210 ± 42 | 176 | 188 | 200 | 210 | 308 | 126 | 418 |
r E/A | 1.32 ± 0.2 | 1 | 1.2 | 1.3 | 1.4 | 1.7 | 0.93 | 1.84 |
r E/Ea | 410 ± 35 | 351 | 382 | 414 | 437 | 460 | 306 | 522 |
E/E, TV | 4.6 ± 0.9 | 1.6 | 4 | 4.6 | 5.2 | 6.4 | 0.6 | 7.2 |
IVCT peak | 12 ± 0.6 | 8 | 10 | 12 | 13 | 18 | 5 | 18 |
Sa peak, cm/s | 13.5 ± 0.2 | 10 | 12 | 13 | 15 | 17 | 9 | 20 |
Ea peak, cm/s) | 15.7 ± 0.15 | 9 | 11 | 12 | 14 | 24 | 6 | 26 |
Aa peak, cm/s | 15 ± 0.14 | 8 | 10 | 12 | 15 | 24 | 5 | 25 |
IVA, cm/s | 34.5 ± 8 | 22 | 28 | 34 | 40 | 46 | 18 | 69 |
S duration, m | 276 ± 26 | 237 | 262 | 274 | 291 | 319 | 192 | 363 |
r IVRT, m/s | 24 ± 15 | 0 | 15 | 23 | 31 | 61 | 0 | 80 |
r Q –Ea, m/s | 397 ± 34 | 342 | 374 | 400 | 416 | 462 | 320 | 493 |
IVCT-Ea, m/s | 346 ± 38 | 290 | 322 | 345 | 369 | 413 | 203 | 466 |
IVC, cm | 1.4 ± 0.2 | 1.2 | 1.3 | 1.4 | 1.57 | 1.74 | 0.8 | 2 |
PAP, mmHg | 23.5 ± 2.5 | 20 | 20 | 25 | 25 | 25 | 15 | 30 |
aAbbreviations: r E ; tricuspid early diastolic velocity, r A; tricuspid late diastolic velocity, rEDT; tricuspid early diastolic deceleration time, r E/A ; the ratio of early to late tricuspid diastolic velocity, r E/Ea; ratio of early tricuspid diastolic velocity to early diastolic tricuspid annular velocity, Sa peak; tricuspid annular systolic velocity; Ea peak; tricuspid annular early diastolic velocity, Aa peak;tricuspid annular late diastolic velocity, IVA; the acceleration time of isovolumetric contraction, S duration; duration of tricuspid annular systolic velocity, r IVRT; right ventricular isovolumetric relaxation time; r Q –Ea :time interval form the beginning of QRS complex to the beginning of early tricuspid annular diastolic velocity; IVCT-Ea, time interval from the beginning of the isovolumetric relaxation time to the beginning of early tricuspid annular diastolic velocity, IVC; inferior vena cava, PAP; pulmonary artery pressure.