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Application Study of Spectral CT Virtual Non-Contrast Technique Combined with Optimal Monoenergetic Technique and Multi-Model Iterative Reconstruction Algorithm in CT Pulmonary Angiography (CTA)

Application Value of Spectral CT Virtual Non-Contrast Technique Combined with Optimal Monoenergetic Technique and Multi-Model Iterative Reconstruction Algorithm in CT Pulmonary Angiography (CTA)

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR2500114260
Enrollment
Unknown
Registered
2025-12-09
Start date
2024-10-01
Completion date
Unknown
Last updated
2025-12-15

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

Conditions

Pulmonary embolism

Interventions

Control group (Group A):A tube voltage of 100 kVp was used, with 30% ASIR-V reconstruction. The contrast agent dose was 0.65 mL/kg, injected at a rate of 5 mL/s, followed by a 40 mL saline flush at th
Experimental group (Group B):The spectral scanning (GSI) mode was employed, using a tube voltage of 80 kVp/140 kVp with instantaneous (0.5 ms) switching in the spectral scanning mode. Automatic tube c
Experimental group (Group C):The spectral scanning (GSI) mode was employed using a tube voltage of 80 kVp/140 kVp with instantaneous (0.5 ms) switching in the spectral scanning mode. Automatic tube cu

Sponsors

The First Affiliated Hospital of Xinxiang Medical University
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

Inclusion criteria

Inclusion criteria: 1. Age over 18 years, no gender restrictions; 2. Patients with a body mass index (BMI) between 18 and 31 kg/m²; 3. Candidates meeting the diagnostic criteria for suspected PE; 4. Unexplained pulmonary hypertension or suspected lung disease.

Exclusion criteria

Exclusion criteria: 1. Aged over 18 years, with no gender restrictions; 2. Patients with a body mass index (BMI) between 18 and 31 kg/m²; 3. Candidates meeting the diagnostic criteria for suspected PE; 4. Unexplained pulmonary hypertension or suspected lung disease; 5. Provide written informed consent for this study.

Design outcomes

Primary

MeasureTime frame
CT attenuation value of the target artery;

Countries

China

Contacts

Public ContactWen Chaoli

The First Affiliated Hospital of Xinxiang Medical University

546210920@qq.com+86 159 3732 7085

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026