[The clinical pathological analysis of 14 autopsy cases of pneumoconiosis].

Objective: To investigate the histopathological features, complications, diagnosis, and differential diagnosis of coal workers' pneumoconiosis (CWP).

Methods: The lung tissue sections from 14 autopsy cases of CWP were subjected to HE staining and observed under a light microscope, and a retrospective analysis was performed considering the occupational history and clinical features.

Results: The 14 cases were 46-71 years of age (mean, 57.

[Diagnostic value and clinical application of CT/HRCT for coal workers' pneumoconiosis with large opacities].

Objective: To study the diagnostic value of CT/HRCT for the coal workers' pneumoconiosis (CWP) with large opacities.

Methods: Sixty-two patients with CWP were examined with both chest radiograph and CT/HRCT scan. Comparison was done.

[The diagnostic value and morphologic manifestation of high resolution computerized tomography in coal miner's pneumoconiosis with pleural pathological changes].

Objective: To analyse CT and high resolution computerized tomography (HRCT) diagnostic value and morphologic manifestation in coal miner's pneumoconiosis with pleural pathological changes.

Methods: One hundred and thirty-one cases of coal miner patients with pneumoconiosis (0(+) type: 14 cases, type I: 46 cases, type II: 58 cases, type III: 13 cases) and 20 normal people as control group were first examined by routine CT scan at 4 fixed slices, followed by HRCT examination at the region of interest (ROI). Meanwhile, all of them had high-kV chest radiography.

[Application of T grain technique to the diagnosis of lung disease and analysis of its image quality].

Objective: To compare the image quality of T grain green sensitive film (TML-1) and Lanex Gd(2)O(2)S rare earth intensifying screen with that of XK-1 blue sensitive film and calcium tungstate (CaWO(4)) intensifying screen, and to study the application of T grain technic to the diagnosis of lung diseases.

Methods: 160 coal miners were randomly selected to take both TML-1 and XK-1 chest film of high kV radiographs at the same time. Silver halide granule, fluorescence of intensifying screen, radiographic parameters, the density at different points in the lung and chest radiographs were observed.