Letter to the EditorQuantitative analysis of emphysema in 3D using MDCT: Correction of air offset in Toshiba scanners
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Cited by (1)
Systemic elastin degradation in chronic obstructive pulmonary disease
2012, ThoraxCitation Excerpt :Images were reconstructed at 0.5-mm intervals with 0.5-mm thick slices using an FC-03 filter. The histogram of CT Hounsfield Units (HU) was corrected for the air offset in Toshiba CT scanners (about –985 HU instead of the nominal –1000 HU with the FC03 filter) using an extra-thoracic air calibration method.22 Emphysema was quantified using inhouse software as percentage low attenuation voxels below –910 and –950 HU (% LAA-910 and %LAA-950).23
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