Passing the hospital grading evaluation, establishing a tertiary-A specialized hospital for occupational diseases, enhancing hospital's internal quality and sustainable development, and continuously improving medical service quality are important measures to promote the high-quality development of hospitals. The evaluation standards for occupational disease specialized tertiary-A hospital require standardized, scientific, and sustainable management of medical equipment. Guangdong Province Hospital for Occupational Disease Prevention and Treatment is the first tertiary-A hospital for occupational diseases specialized in Guangdong Province. Relative regulation on medical equipment management was systematically reviewed based on the requirement of tertiary-A specialized hospital for occupational diseases during hospital grading evaluation process. Building and completing the medical equipment management system, standardizing and strengthening government procurement management, completing the configuration management and safety management of large-scale medical equipment, strengthening the effectiveness analysis and evaluation of large equipment, enhancing training on medical equipment usage, establishing emergency allocation systems for first-aid and life support medical equipment, and forming a medical equipment quality and safety management team is the measure to systematically improve and implement each item in various regulation for the full lifecycle management of medical equipment. It provides vital support in passing the tertiary-A hospital evaluation for hospitals. During the hospital grading evaluation process, each issue identified in medical equipment management was addressed and improved. This process continuously enhanced the hospital's medical equipment management level, ensured the safe and effective use of medical equipment, and improved the quality of medical services, laying a solid foundation for the hospital to become a high level specialized medical institution for occupational diseases.

OBJECTIVETo apply low-dose multi spiral computed tomography (MSCT) chest scans in the early diagnosis and differential diagnosis of pneumoconiosis.

METHODSOne hundred and twenty dust-exposed volunteers were examined by MSCT chest scans at conventional dose and low dose, and the results of conventional-dose scans were set as the gold standard. Comparative analysis was performed on the major CT findings and quality of post-processing images, including 1.5 mm and 5.0∼10.0 mm thick high -resolution reconstructed images, multiplanar reformat images, and maximum intensity projection images.

RESULTSOne hundred and twenty cases of small circular shadows, 36 cases of ribbon shadows in pulmonary parenchyma, 1 case of honeycombing shadow, and 13 cases of big shadows were all showed on low -dose MSCT. But 94 (95.9%) of 98 cases of interlobular septal thickening shadows and 98 (93.3%) of 105 cases of short branched shadows were detected on low-dose MSCT. There were no significant differences in display of the mentioned large and small shadows between low-dose scans and conventional-dose scans (P > 0.05). Eighty-five cases of small airway disease, 8 cases of pulmonary inflammatory lesions, and 47 cases of hilar and mediastinal lymph node swelling were all detected by MSCT. As for the 46 cases of emphysema, 38 (82.6%) were shown. The low-dose MSCT images of 1.5 mm thickness had more artifacts than those of other thickness. The radiation dose of low-dose MSCT was about 1/3-1/5 of that in the conventional-dose MSCT.

CONCLUSIONThere is no difference in display of pneumoconiosis between low-dose and conventional-dose MSCT chest scans. With lower radiation dose, low-dose MSCT can be applied in the diagnosis of pneumoconiosis.

Adult ; Aged ; Dust ; Female ; Humans ; Lung ; diagnostic imaging ; Male ; Middle Aged ; Occupational Exposure ; Pneumoconiosis ; diagnostic imaging ; Tomography, X-Ray Computed ; methods