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Evaluation of ultra low dose protocols and Iomeron 400 contrast in PCD-CT
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Low Dose | Other | Standard Low Dose CT |
|
| Ultra Low Dose | Other | Ultra Low Dose CT |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Computed Tomography | Radiation | Computed Tomography CHEST |
|
| Measure | Description | Time Frame |
|---|---|---|
| Dose Reduction by new scanner | mSv per exam will be recorded. This value will be put in correlation to weight (Kg), height (cm) and BMI. | through study completion, an average of 1 year |
| stable Image Quality in reduced dose scans | Recorded values compared in 2 populations-different contrast agents by using qualitative&quantitative methods Qualitative:diagnostic certainty, assessability of lung structure/lesions,diagnostic reliability, Quantitative:Assessment of tissue composition,diagnostic performance measurements Attenuation/sealing measurement (HU), signal-to-noise ratio (SNR), contrast-to-noise ratio ,size dimensions of lung structure/lesion in three dimensions in millimeters Tissue composition assessment diagnostic performance measurements (sensitivity, specificity, accuracy) diagnostic confidence: 1-4 Theses measurements will be put in correlation to the scan dose (mSv) per patient, forming two groups with matched BMI (kg/m^2) | through study completion, an average of 1 year |
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Inclusion Criteria:
Exclusion Criteria:
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| University Hospital Zurich - Diagnostic Radiology | Recruiting | Zurich | 8091 | Switzerland |
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| ID | Term |
|---|---|
| D011655 | Pulmonary Embolism |
| D008175 | Lung Neoplasms |
| D011014 | Pneumonia |
| ID | Term |
|---|---|
| D008171 | Lung Diseases |
| D012140 | Respiratory Tract Diseases |
| D004617 | Embolism |
| D016769 | Embolism and Thrombosis |
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| D014652 |
| Vascular Diseases |
| D002318 | Cardiovascular Diseases |
| D012142 | Respiratory Tract Neoplasms |
| D013899 | Thoracic Neoplasms |
| D009371 | Neoplasms by Site |
| D009369 | Neoplasms |
| D012141 | Respiratory Tract Infections |
| D007239 | Infections |