Diagnosis of Pulmonary artery emboli with lower doses of IV contrast media
Not Applicable
- Conditions
- Pulmonary artery embolism.Pulmonary embolism
- Registration Number
- IRCT2015041121699N1
- Lead Sponsor
- Vice Chancellor of Research and Technology of Ahvaz Jundishapur University of Medical Science
- Brief Summary
Not available
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- Complete
- Sex
- All
- Target Recruitment
- 100
Inclusion Criteria
Patients aged more than eighteen years and less than one hundred, with an indication for pulmonary CT angiography, and their weight is lower than 85kg
Exclusion criteria: Patients unable to give informed consent, patients with a known allergy to contrast agents, pregnant patients, those with irregular supra ventricular tachycardia or congestive heart failure
Exclusion Criteria
Not provided
Study & Design
- Study Type
- interventional
- Study Design
- Not specified
- Primary Outcome Measures
Name Time Method Vascular enhancement of main, Rt main, lobar, segmental and subsegmental pulmonary arteries. Timepoint: Just after intervention. Method of measurement: CT number (hounsfield unit).;Homogeneity of intravascular contrast enhancement of pulmonary arteries from the central to the subsegmental level. Timepoint: Just after intervention. Method of measurement: Semi-quantitative scale (1. bad, no diagnosis possible; 2. poor, diagnostic confidence significantly reduced; 3. moderate, but sufficient for diagnosis; 4. good; and 5. excellent).
- Secondary Outcome Measures
Name Time Method Diagnostic confidence of pulmonary artery embolism detection. Timepoint: After intervention, when all images are collected. Method of measurement: Semi quantitative scale (1. possible PE; 2. probable PE; and 3. definite PE).