Comparing image quality of low voltage CT angiography with 100 kilovoltage

Comparison of image quality of low voltage CT angiography (80 kilovoltage) with standard condition (100 kilovoltage) in patients suspicious to pulmonary emboli

Status

Active, not recruiting

Phases

Phase 1

Study type

Interventional

Source

IRCT

Registry ID

IRCT201208084811N2

Enrollment

142

Registered

2013-05-21

Start date

2012-04-20

Completion date

Unknown

Last updated

2018-02-22

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

Conditions

Pulmonary emboli. Pulmonary embolism

Interventions

Intervention 1: Intervention group: Pulmonary CT Aangiography will be done by 80 kilovoltage condition. Intervention 2: Control group: Pulmonary CT Aangiography will be done by 100 kilovoltage conditi

Diagnosis

Intervention group: Pulmonary CT Aangiography will be done by 80 kilovoltage condition

Control group: Pulmonary CT Aangiography will be done by 100 kilovoltage condition

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Inclusion criteria: written informed consent of the patient, weight lower than 110 kg. Exclusion criteria: tendency of the patients to quit from the study every time he/she wants (causes of this tendency will be asked to be able for doing sensitivity analysis)

Exclusion criteria

Exclusion criteria:

Design outcomes

Primary

Measure	Time frame
Number of sizable arteries in different segments of lungs. Timepoint: after CT angiography. Method of measurement: CT Angiography.;Pulmonary vascular enhancement. Timepoint: after CT angiography. Method of measurement: CT Angiography.;Image noise. Timepoint: after CT angiography. Method of measurement: CT Angiography.;Image quality score. Timepoint: after CT angiography. Method of measurement: CT Angiography.	—

Measure

Time frame

Number of sizable arteries in different segments of lungs. Timepoint: after CT angiography. Method of measurement: CT Angiography.;Pulmonary vascular enhancement. Timepoint: after CT angiography. Method of measurement: CT Angiography.;Image noise. Timepoint: after CT angiography. Method of measurement: CT Angiography.;Image quality score. Timepoint: after CT angiography. Method of measurement: CT Angiography.

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Secondary

Measure	Time frame
Age. Timepoint: Before intervention. Method of measurement: Taking history from the patient.;Gender. Timepoint: Before intervention. Method of measurement: Taking history from the patient.;Weight. Timepoint: Before intervention. Method of measurement: Taking history from the patient.;Height. Timepoint: Before intervention. Method of measurement: Paper meter.;Underlying diseases. Timepoint: Before intervention. Method of measurement: Taking history from the patient.;Smoking. Timepoint: Before intervention. Method of measurement: Taking history from the patient.	—

Measure

Time frame

Age. Timepoint: Before intervention. Method of measurement: Taking history from the patient.;Gender. Timepoint: Before intervention. Method of measurement: Taking history from the patient.;Weight. Timepoint: Before intervention. Method of measurement: Taking history from the patient.;Height. Timepoint: Before intervention. Method of measurement: Paper meter.;Underlying diseases. Timepoint: Before intervention. Method of measurement: Taking history from the patient.;Smoking. Timepoint: Before intervention. Method of measurement: Taking history from the patient.

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Countries

Iran (Islamic Republic of)

Contacts

Public ContactAli Kabir

Shahid Beheshti University of Medical Sciences

aikabir@yahoo.com+98 21 2243 1993

Outcome results

None listed

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