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Optical coherence tomography-guided vs intravascular ultrasound-guided stent implantation for calcified coronary lesions: the IMATARI trial

Optical coherence tomography-guided vs intravascular ultrasound-guided stent implantation for calcified coronary lesions: the IMATARI trial

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR2600119516
Enrollment
Unknown
Registered
2026-02-28
Start date
2026-02-28
Completion date
Unknown
Last updated
2026-03-02

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

coronary artery calcified lesions

Interventions

OCT group:OCT guiding PCI
IVUS group:IVUS guiding PCI

Sponsors

Zhongshan Hospital, Fudan University
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 85 Years

Inclusion criteria

Inclusion criteria: 1.Patients 18-85 years old; 2.Patients with angina intending to receive PCI. 3.The target lesion was moderate to severe calcified on coroanry angiograms.

Exclusion criteria

Exclusion criteria: 1.Admission diagnosis of acute ST-segment elevation myocardial infarction; 2.Patients with heart failure and respiratory failure leading to orthopnea; 3.History of contrast agent allergy; 4.Acute or chronic infectious diseases (e.g., severe pneumonia); 5.Recent history of hemorrhagic stroke (within 6 months); 6.Severe hepatic dysfunction (total bilirubin > 3 × ULN) or renal insufficiency (eGFR < 15 mL/min/1.73 m²); due to various causes; 7.History of any type of cardiomyopathy; 8.Severe anemia, thrombocytopenia, other hematologic disorders, or contraindications to antiplatelet therapy; 9.Pregnant or lactating women, as well as patients planning pregnancy during the trial period; 10.Participation in other interventional clinical studies or individuals deemed unsuitable by the investigator.

Design outcomes

Primary

MeasureTime frame
Expansion rate of the stents;

Secondary

MeasureTime frame
Adverse events:a composite of cardiac death, target vessel MI, target vessel revascularization;minimal stent area;Contrat volume;

Countries

China

Contacts

Public ContactHao Lu

Zhongshan Hospital, Fudan University

lu.hao@zs-hospital.sh.cn+86 21 64041990

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Mar 14, 2026