Abstract
Background/objectives: To assess the gender influence on radiation dose saving allowed by prospective ECG-triggered MDCT coronary angiography (P-MDCT-CA) in comparison with retrospective ECG-gated MDCT-CA (R-MDCT-CA). The influence of kilovoltage and body mass index on radiation dose and the impact of different parameters on image quality (IQ) and diagnostic confidence (DC), were also determined. Methods: 64-slice MDCT-CA was performed in 176 patients: 66 R-MDCT-CA and 110 P-MDCT-CA. Effective dose was determined using ImpactDose software based on Monte Carlo method. Three point scales were used to assess IQ and DC on a segmental basis. Results: Patients were divided into 4 groups according with the examination performed: group A (90 pts, coronary tree assessment with P-MDCT-CA); group B (55 pts, coronary tree assessment with R-MDCT-CA); group C (20 pts, bypass grafts assessment with P-MDCT-CA); and group D (11 pts, bypass grafts assessment with R-MDCT-CA). Effective dose was 68% lower for P-MDCT-CA than R-MDCT-CA for coronary artery studies (Gr. A = 4.7 ± 1.69 mSv and Gr. B = 14.9 ± 4.4 mSv; p <0.05) and 63% lower for by-pass studies. Effective dose resulted significantly higher in women than in men who underwent R-MDCT-CA; conversely, no gender impact was observed on effective dose of P-MDCT-CA. As a result, dose saving with prospective gating was more pronounced in women (73%; R-MDCT-CA:16.3 mSv, P-MDCT-CA:4.5 mSv,) than in men (60%; R-MDCT-CA:12.8 mSv, P-MDCT-CA:4.8 mSv). IQ and DC of P-MDCT-CA were better or comparable than R-MDCT-CA Conclusions: P-MDCT-CA provides at least comparable IQ and DC than R-MDCT-CA with significant dose saving. This study highlights the important advantage offered by using P-MDCT-CA in female patients.
| Original language | English |
|---|---|
| Pages (from-to) | 253-259 |
| Number of pages | 7 |
| Journal | International Journal of Cardiology |
| Volume | 158 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - Jul 12 2012 |
Fingerprint
Keywords
- 64-slice MDCT
- Coronary artery disease
- Dose saving
- Multi-detector-computed-tomography coronary angiography
- Radiation dose
- Step-and-shoot
ASJC Scopus subject areas
- Cardiology and Cardiovascular Medicine
Cite this
Gender influence on dose saving allowed by prospective-triggered 64-slice multidetector computed tomography coronary angiography as compared with retrospective-gated mode. / Esposito, Antonio; De Cobelli, Francesco; Colantoni, Caterina; Perseghin, Gianluca; Del Vecchio, Antonella; Canu, Tamara; Calandrino, Riccardo; Del Maschio, Alessandro.
In: International Journal of Cardiology, Vol. 158, No. 2, 12.07.2012, p. 253-259.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Gender influence on dose saving allowed by prospective-triggered 64-slice multidetector computed tomography coronary angiography as compared with retrospective-gated mode
AU - Esposito, Antonio
AU - De Cobelli, Francesco
AU - Colantoni, Caterina
AU - Perseghin, Gianluca
AU - Del Vecchio, Antonella
AU - Canu, Tamara
AU - Calandrino, Riccardo
AU - Del Maschio, Alessandro
PY - 2012/7/12
Y1 - 2012/7/12
N2 - Background/objectives: To assess the gender influence on radiation dose saving allowed by prospective ECG-triggered MDCT coronary angiography (P-MDCT-CA) in comparison with retrospective ECG-gated MDCT-CA (R-MDCT-CA). The influence of kilovoltage and body mass index on radiation dose and the impact of different parameters on image quality (IQ) and diagnostic confidence (DC), were also determined. Methods: 64-slice MDCT-CA was performed in 176 patients: 66 R-MDCT-CA and 110 P-MDCT-CA. Effective dose was determined using ImpactDose software based on Monte Carlo method. Three point scales were used to assess IQ and DC on a segmental basis. Results: Patients were divided into 4 groups according with the examination performed: group A (90 pts, coronary tree assessment with P-MDCT-CA); group B (55 pts, coronary tree assessment with R-MDCT-CA); group C (20 pts, bypass grafts assessment with P-MDCT-CA); and group D (11 pts, bypass grafts assessment with R-MDCT-CA). Effective dose was 68% lower for P-MDCT-CA than R-MDCT-CA for coronary artery studies (Gr. A = 4.7 ± 1.69 mSv and Gr. B = 14.9 ± 4.4 mSv; p <0.05) and 63% lower for by-pass studies. Effective dose resulted significantly higher in women than in men who underwent R-MDCT-CA; conversely, no gender impact was observed on effective dose of P-MDCT-CA. As a result, dose saving with prospective gating was more pronounced in women (73%; R-MDCT-CA:16.3 mSv, P-MDCT-CA:4.5 mSv,) than in men (60%; R-MDCT-CA:12.8 mSv, P-MDCT-CA:4.8 mSv). IQ and DC of P-MDCT-CA were better or comparable than R-MDCT-CA Conclusions: P-MDCT-CA provides at least comparable IQ and DC than R-MDCT-CA with significant dose saving. This study highlights the important advantage offered by using P-MDCT-CA in female patients.
AB - Background/objectives: To assess the gender influence on radiation dose saving allowed by prospective ECG-triggered MDCT coronary angiography (P-MDCT-CA) in comparison with retrospective ECG-gated MDCT-CA (R-MDCT-CA). The influence of kilovoltage and body mass index on radiation dose and the impact of different parameters on image quality (IQ) and diagnostic confidence (DC), were also determined. Methods: 64-slice MDCT-CA was performed in 176 patients: 66 R-MDCT-CA and 110 P-MDCT-CA. Effective dose was determined using ImpactDose software based on Monte Carlo method. Three point scales were used to assess IQ and DC on a segmental basis. Results: Patients were divided into 4 groups according with the examination performed: group A (90 pts, coronary tree assessment with P-MDCT-CA); group B (55 pts, coronary tree assessment with R-MDCT-CA); group C (20 pts, bypass grafts assessment with P-MDCT-CA); and group D (11 pts, bypass grafts assessment with R-MDCT-CA). Effective dose was 68% lower for P-MDCT-CA than R-MDCT-CA for coronary artery studies (Gr. A = 4.7 ± 1.69 mSv and Gr. B = 14.9 ± 4.4 mSv; p <0.05) and 63% lower for by-pass studies. Effective dose resulted significantly higher in women than in men who underwent R-MDCT-CA; conversely, no gender impact was observed on effective dose of P-MDCT-CA. As a result, dose saving with prospective gating was more pronounced in women (73%; R-MDCT-CA:16.3 mSv, P-MDCT-CA:4.5 mSv,) than in men (60%; R-MDCT-CA:12.8 mSv, P-MDCT-CA:4.8 mSv). IQ and DC of P-MDCT-CA were better or comparable than R-MDCT-CA Conclusions: P-MDCT-CA provides at least comparable IQ and DC than R-MDCT-CA with significant dose saving. This study highlights the important advantage offered by using P-MDCT-CA in female patients.
KW - 64-slice MDCT
KW - Coronary artery disease
KW - Dose saving
KW - Multi-detector-computed-tomography coronary angiography
KW - Radiation dose
KW - Step-and-shoot
UR - http://www.scopus.com/inward/record.url?scp=84862205917&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84862205917&partnerID=8YFLogxK
U2 - 10.1016/j.ijcard.2011.01.039
DO - 10.1016/j.ijcard.2011.01.039
M3 - Article
C2 - 21324538
AN - SCOPUS:84862205917
VL - 158
SP - 253
EP - 259
JO - International Journal of Cardiology
JF - International Journal of Cardiology
SN - 0167-5273
IS - 2
ER -