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OBJECTIVE: The activity of pulmonary tuberculosis has been usually detarmined by smear and culture of AFB in sputum and serial chest X ray. However it is sorntimes difficult to determine the activity of pulmonary tuberculosis by either. We have studied Gallium lung scan 4 HRCT in the patients with pulmonary tuberculosis to determine its activity and compared their diagnostic significance. METHODS: 67Gallium lung scan and HRCT were examined in 63 patients with pulmonary tuberculosis suspected by chest X ray and were compared each other with their possible diagnostic significance in determination of activity. The active pulmonary tuberculosis was defined by positive AFB smear and/ or culture in sputum and changes of findings in serial chest X ray. RESULTS: 1) Of 63 patients with pulmonary tuberculosis, 37 patients has been diagnosed active 9 patients were diagnosed by positive AFB smear in sputum, 20 patients by positive AFB culture in sputum and 8 patients by changes of findings in serial chest X ray. 2) In the 37 patients with active pulmonary tuberculosis, chest X ray revealed active pulmonary tuberculosis findings in 28 patients, inactive in 4 patients and undetermined in 5 patients. On the contrary, In the 26 patients with inactive pulmonary tuberculosis, the chest X ray revealed active pulmonary tuberculosis findings in 6 patients, inactive in 16 patients and undetermined in 4 patients. 3) 67Gallium lung scan showed positive uptake in 34 patients of the 37 patients with active pulmonary tuberculosis, but did not show any uptake at all in 26 patients with inactive pulmonary tuberculosis. 4) HRCT showed active findings in 36 patients of the 37 patients with pulmonary tuberculosis. And it showed active findings in 4 patients of the 26 patients with inactive pulmonary tuberculosis. CONCLUSION: The Gallium lung scan showed 82% of sensitivity and 8% of false negativity. And HRCT showed 97% of sensitivity and 15% of false positivity. In the aspect of laboratory examinations for the determination of activity in pulmonary tuberculosis the 67Gallium lung scan and the HRCT appeared useful.
Gallium* ; Humans ; Lung* ; Sputum ; Thorax ; Tuberculosis, Pulmonary*

1.Clinical Application of Induced Sputum.

2.A case of unsuspected pulmonary cryptococcosis in sputum cytology.

3.Haemophilus influence isolated from sputum specimens: prevalence biotypes and antimicrobial susceptibility.

4.Haemophilus influence isolated from sputum specimens: prevalence biotypes and antimicrobial susceptibility.

5.Isolation and identification of the yeasts from sputum or other clinical specimens using the medium containing pigments extract of gardenia jasminoides fruits.

6.Clinical evaluation of positive sputum AFB cases following pulmonary resection of pulmonary tuberculosis.

7.Humoral immune responses in the induced sputum of asthmatic patients.

8.Observation on sputum cytology in pulmonary tuberculosis.

9.Clinical Evaluation of 10 Cases of Nontuberculous Mycobacteria Isolated from Sputum.

10.The Diagnostic Significance of 67 Gallium Lung Scan and High Resolution Computed Tomography in Patients with Pulmonary Tuberculosis.

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