Low-dose, high-pitch pulmonary CT angiography in evaluating pulmonary thromboembolism

Comparing diagnostic yield of high-pitch CT angiography with low-dose radiation and normal breathing with routine breath hold CT angiography

Status

Recruiting

Phases

Unknown

Study type

Interventional

Source

IRCT

Registry ID

IRCT20180519039721N1

Enrollment

Registered

2018-06-06

Start date

2018-05-26

Completion date

Unknown

Last updated

2018-07-16

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

Conditions

pulmonary thromboembolism. Pulmonary embolism

Interventions

Intervention group: High-pitch, low-dose CT angiography.

Eligibility

Sex/Gender

All

Age

18 Years to No maximum

Inclusion criteria

Inclusion criteria: Ability to hold the breathing Clinical suggestion of pulmonary thromboembolism Conscious patient weight over 45 kg

Exclusion criteria

Exclusion criteria: Weight over 80 kg unconsciousness contrast material allergy

Design outcomes

Secondary

Measure	Time frame
Radiation dose. Timepoint: Immediately after the intervention. Method of measurement: DICOM data.	—

Primary

Measure	Time frame
Image quality. Timepoint: immediately after the intervention. Method of measurement: Osirix imaging software.	—

Countries

Iran (Islamic Republic of)

Contacts

Public ContactBita Abbasi

Mashhad University of Medical Sciences

abbasib@mums.ac.ir+98 51 3852 5004

Outcome results

None listed

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