Utilization of an Optimized Radiation Strategy in Primary Percutaneous Coronary Intervention for Patients with ST-Segment-Elevation Myocardial Infarction
Table 2
Procedural and radiation dose characteristics.
ORS group (n = 151)
NRS group (n = 63)
value
Radial artery access
147 (97.4%)
59 (93.7%)
0.238
Multiple-vessel disease
109 (72.2%)
42 (66.7%)
0.419
Infarct related artery
LM
1 (0.7%)
0 (0%)
0.628
LAD
77 (51.0%)
27 (42.9%)
LCX
15 (9.9%)
8 (12.7%)
RCA
58 (38.4%)
28 (44.4%)
TIMI flow pre-PCI
0
96 (63.6%)
45 (71.4%)
0.252
1
20 (13.2%)
3 (4.8%)
2
12 (7.9%)
7 (11.1%)
3
23 (15.2%)
8 (12.7%)
Thrombus aspiration
108 (71.5%)
50 (79.4%)
0.234
Non-culprit vessel PCI
8 (5.3%)
2 (3.2%)
0.727
Stent number
1.5 ± 0.7
1.3 ± 0.8
0.241
GPI use
During intervention
80 (53.0%)
31 (49.2%)
0.615
After intervention
40 (26.5%)
21 (33.3%)
0.312
Contrast volume (mL)
127.9 ± 43.8
122.4 ± 41.7
0.394
Successful PCI
151 (100%)
62 (98.4%)
0.294
Air kerma (mGy)
901.2 ± 628.7
1524.0 ± 866.6
<0.001
DAP (Gycm2)
57.1 ± 40.7
101.1 ± 59.4
<0.001
Fluoroscopy time (min)
20.1 ± 12.8
21.7 ± 17.4
0.439
EI (min/Gy)
24.8 ± 9.5
16.0 ± 10.2
<0.001
Continuous data are presented as mean ± SD; categorical data are expressed as counts (percentage). ORS: optimized radiation strategy; NRS: normal radiation strategy; LM: left main; LAD: left anterior descending artery; LCX: left circumflex artery; RCA: right coronary artery; TIMI: thrombolysis in myocardial infarction; PCI: percutaneous coronary intervention; GPI : GP IIb/IIIa inhibitor; DAP: dose-area product; EI: efficiency index.
