Native Coronary Calcium CT as a Planning Tool for CT Coronary Angiography - Effect on Radiation Dose and Image Quality with Different Acquisition Techniques.

Status

Recruiting

Phases

Unknown

Study type

Observational

Source

DRKS

Registry ID

DRKS00025244

Enrollment

400

Registered

2023-06-13

Start date

2021-03-14

Completion date

Unknown

Last updated

2025-04-07

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

Conditions

coronary artery disease

Interventions

Group 1: Not an interventional study, just a retrospective analysis. Arm 1: Patients with coronary calcium CT and CT coronary angiography. Group 2: Arm 2: Same patients, simulated alternative diagnos

Eligibility

Sex/Gender

All

Age

18 Years to No maximum

Inclusion criteria

Inclusion criteria: Patients who underwent a computed tomography examination using native calcium CT and contrast-enhanced CT coronary angiography for the exclusion of coronary heart disease between 01/2017 and 12/2020.

Exclusion criteria

Exclusion criteria: Patients with a known coronary heart disease Patients with a history of cardiothoracic surgery/intervention Patients who did not undergo native calcium CT Patients who did not undergo contrast-enhanced CT coronary angiography

Design outcomes

Primary

Measure	Time frame
Radiation dose reduction with virtual scan length reduction.	—

Secondary

Measure	Time frame
Radiation dose reduction in subgroups defined by BMI, pre-test probability, acquisition technique, and tube voltage.	—

Countries

Germany

Contacts

Public ContactMartin Soschynski

Uniklinik Freiburg Klinik für Diagnostische und Interventionelle Radiologie

martin.soschynski@uniklinik-freiburg.de076127039090

Outcome results

None listed

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