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Volumetric HRCT 2 Respiratory Phases

Last Updated: 2026-01-01 Author: None

  • 1. Clinical Summary

    Series Phase Coverage
    Volumetric Inspiration Full inspiration Lung apices → Costophrenic angles
    Expiration Full expiration Lung apices → Costophrenic angles
    • Interstitial lung disease without prone imaging
    • ILD diagnosis
    • Diffuse lung disease

  • 2. Patient Prep

    • Position: Supine with arms raised
    • NPO Status: N/A
    • Pre-Medication:
      • None required

  • 3. IV Contrast & Injection

    No Intravenous Contrast

    This protocol does not require IV contrast administration.

  • 4. Special Notes

    • TWO acquisitions: 1) Full INSPIRATION 2) EXPIRATION Volumetric (contiguous thin slice). Coach breathing
    • No IV. Careful breath hold coaching. Inspiration and expiration

    Safety First

    • Renal Function: N/A
    • Allergy: N/A
    • ILD pattern recognition. Honeycombing. Ground glass. Reticular. Mosaic attenuation on expiration
    • Volumetric contiguous slices. Coach breathing carefully
Series Name Start Location End Location Delay Slice Thickness Notes
Volumetric Inspiration Lung apices Costophrenic angles Full inspiration 1 mm Contiguous 1mm slices
Expiration Lung apices Costophrenic angles Full expiration 1 mm Limited coverage expiration
Plane Acquisition FOV Thickness/Increment Kernel IR Strength Notes
Axial Inspiration Chest 1 mm/1 mm Lung 3 Thin slice ILD assessment
Axial Expiration Lower lungs 1 mm/1 mm Lung 3 Air trapping assessment
Coronal Inspiration Chest 1.5 mm Lung 3 ILD distribution
Sagittal Inspiration Chest 2 mm Lung 3 Craniocaudal distribution