 Hello. Myself, Dr. Mohammad Mahmud Rahman and my topic is comparison between digital computer radiography and high-resonational computer tomography in industrial lung diseases. Introduction. Industrial lung diseases are a diverse group of diseases which affect the lung industrial system and share similar clinical radiological manifestations. They are a continuous group of disorder of the lower respiratory tract. They are characterized by both acute and chronic inflammation, generally reversible and reoccurred in the process of fibrosis in the alveolar wall. The term industrial cell can be misleading as most of the conditions also affect the areas of the spaces and even the blood vessels, but it is predominant and primary involvement of the industrial cell that characterizes them. The natural history of several lung diseases are characterized by slow and progressive destruction of alveolar capillary function with anatomical destruction, peripheral aerogenesis with often respiratory failure and death. So, the importance of HRCT and other investigation in aiding for lung diseases is important. The exact prevalence and incidence of LEDs are unknown. The study shows the prevalence of 81 in one leg for men and with 67 in one leg for women. In 1994, Hammond reached and described four cases of rapidly progressive phytal diffused industrial cell fibrosis. They adopted a diffused industrial fibrosis with mononuclear cell infestation and was from Hammondry's syndrome. The spectrum of histopathology finding was much broader and included intra-alveolar industrial and anaerobic changes. The aim is an objective. Generally, to find the different varieties of radiography pattern in the ILDs as seen in digital computed chest radiography with HRCT thorax coalescence. Specific objective to describe the different radiography pattern evident in both digital radiography and HRCT. And the coalescent findings of DR with HRCT. Metalsome method studies and descriptive cross-sectional study shedding timelines. The study was conducted in the Department of Radiological Diagnosis, in the time frame of 18 months of the date of acceptance of synapses. Totally study period of 18 months with study population. The patients of ILD was referred to the radiographies for evaluation of the Department of Radiological Diagnosis and Baccalaureate Surveillance in the Middle College and Hospital. Each of them submitted to both DR and HRCT thorax. This is the sample formula. Inclusion criteria, clinically suspected patients of ILD referred to the radiology department for X-ray and CT scan of thorax. Already diagnosed cases of such interstitial lung disease which need to follow up in radiological investigation were referred to radiology department. And exclusion criteria presents presented to radiology department who were unfit for study. And state tools. Medical records for bed head tickets, OPD and other laboratory investigations. We found that 57.5% male patients had ILD and 42.5%. And in this sample we can see that about 37.5% were from 50 to 59 age group and 35% were from 60 to 69 age group. If you look into the occupation, we will find 30% among housewife and 25% among the farmers in the incidence of the disease. Comparative study radical opacity, 60% which is in DR and that is HACT 92.5%. And honey combing 6%, 15% in DR and 47.5% in HRCT. Traxonal bronchitis is 52.5% in HRCT. Now discussion. The main observation of our study that higher number of abnormal findings were detected by HACT to DR even when both modelluses are able to detect the HRCT findings in HRCT. So the influence can be drawn from this study is that HRCT is much more sensitive and effective than just radiography for distance of intestine lung diseases. Therefore HRCT seem to be essential for the evolution of case of industrial lung disease. Now these are the references. Four minutes.