Evaluation of ultra low dose protocols and Iomeron 400 contrast in PCD-CT
Study Type
INTERVENTIONAL
Allocation
NON_RANDOMIZED
Purpose
DIAGNOSTIC
Masking
NONE
Enrollment
100
Computed Tomography CHEST
University Hospital Zurich - Diagnostic Radiology
Zurich, Switzerland
RECRUITINGDose Reduction by new scanner
mSv per exam will be recorded. This value will be put in correlation to weight (Kg), height (cm) and BMI.
Time frame: 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)
Time frame: through study completion, an average of 1 year
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