A Pilot Study to Estimate the Impact of High Matrix Image Reconstruction on Chest Computed Tomography
Open Access
- 30 September 2021
- journal article
- research article
- Published by Scientific Scholar in Journal of Clinical Imaging Science
Abstract
Objectives: The objectives of the study were to estimate the impact of high matrix image reconstruction on chest computed tomography (CT) compared to standard image reconstruction. Material and Methods: This retrospective study included patients with interstitial or parenchymal lung disease, airway disease, and pulmonary nodules who underwent chest CT. Chest CT images were reconstructed using high matrix (1024 × 1024) or standard matrix (512 × 512), with all other parameters matched. Two radiologists, blinded to reconstruction technique, independently examined each lung, viewing image sets side by side and rating the conspicuity of imaging findings using a 5-point relative conspicuity scale. The presence of pulmonary nodules and confidence in classification of internal attenuation was also graded. Overall image quality and subjective noise/artifacts were assessed. Results: Thirty-four patients with 68 lungs were evaluated. Relative conspicuity scores were significantly higher using high matrix image reconstruction for all imaging findings indicative of idiopathic lung fibrosis (peripheral airway visualization, interlobular septal thickening, intralobular reticular opacity, and end-stage fibrotic change; P ≤ 0.001) along with emphysema, mosaic attenuation, and fourth order bronchi for both readers (P ≤ 0.001). High matrix reconstruction did not improve confidence in the presence or classification of internal nodule attenuation for either reader. Overall image quality was increased but not subjective noise/artifacts with high matrix image reconstruction for both readers (P < 0.001). Conclusion: High matrix image reconstruction significantly improves the conspicuity of imaging findings reflecting interstitial lung disease and may be useful for diagnosis or treatment response assessment.Keywords
This publication has 31 references indexed in Scilit:
- Interobserver agreement for the ATS/ERS/JRS/ALAT criteria for a UIP pattern on CTThorax, 2015
- Persistent pulmonary subsolid nodules with solid portions of 5 mm or smaller: Their natural course and predictors of interval growthEuropean Radiology, 2015
- Ultra-High-Resolution Computed Tomography of the Lung: Image Quality of a Prototype ScannerPLOS ONE, 2015
- Interobserver Variability in the CT Assessment of Honeycombing in the LungsRadiology, 2013
- Multidetector CT of the Lung: Image Quality with Garnet-based DetectorsRadiology, 2010
- Review of high-resolution CT of the lung.RadioGraphics, 1992
- Usual interstitial pneumonia: histologic correlation with high-resolution CT.Radiology, 1992
- Solitary pulmonary nodule: high-resolution CT and radiologic-pathologic correlation.Radiology, 1991
- Pulmonary lymphangitic spread of carcinoma: appearance on CT scans.Radiology, 1987
- Centrilobular lesions of the lung: demonstration by high-resolution CT and pathologic correlation.Radiology, 1986