Three-Dimensional CT for Preprocedural Planning of PCI for Ostial Right Coronary Artery Lesions: A Randomized Controlled Pilot Trial
Corrected 23 Oct 2026: Outcome relabelled as geographic mismatch: the control group’s 5 (33%) are patients with mismatch, as the abstract states; no number changed.
Authors' conclusion
Preprocedural 3DCT planning for percutaneous coronary intervention of aorto-ostial right coronary artery lesions allows for optimal stent positioning while reducing procedure time, contrast, and radiation dose.
Study context
- Population
- Patients with an aorto-ostial right coronary artery lesionpatients randomly assigned
- Participants
- 30 patients
- Exposure
- Percutaneous coronary intervention with a preprocedural 3DCT or angiography-guided percutaneous coronary intervention
- Outcome
- percentage of patients without geographic mismatch, as determined by intravascular ultrasound
Methodological detailsrandomly assigned, pilot
- Randomly assigned
- Pilot
Main finding
As reported in the abstract
Intervention group
stent in the optimal position in all patients (no mismatch)
Control group
33%
5 events
P = 0.06
Observational data: associations, not effects.
Further findings
| Outcome | P value |
|---|---|
| Procedural contrast, radiation and procedure timeIntervention group vs control group · lower in the intervention group | P < 0.0001 |
| Procedural contrast, radiation and procedure timeIntervention group vs control group · lower in the intervention group | P = 0.03 |
| Procedural contrast, radiation and procedure timeIntervention group vs control group · lower in the intervention group | P = 0.03 |
C-arm angles
- 3DCT-determined C-arm angles were heterogenous but, in general, more extreme left anterior oblique projections were used
- P < 0.0001
3DCT prediction of calcium arc and minimal lumen area by intravascular ultrasound
- Calcium arc
- P < 0.0001
- Minimal lumen area by intravascular ultrasound
- P = 0.003
Original publication
Composed by AI from the published abstract and checked against it. How Briefs are made →