Objective To summarize the CT signs and clinic characteristics to improve the CT diagnoses ability on the lobar bronchial intraluminal cancer and provide a well comprehension for it.Methods To study the clinical symptom and CT presentation in 7 cases with the lobar bronchial intraluminal cancer which had been confirmed by bronchoscopy and pathologic exam.Results 3 cases were in right superior lobaris bronchus,1 case in right middle lobaris bronchus,3 cases in left superior lobaris bronchus.Obstructive pneumonia were found in 7 cases.Obstructive atelestasis in 5 cases.The nodules or emboluses within lobaris bronchus were showed by CT in all cases and the obstructive signs on each patient in its degrees. Conclusion To get the CT diagnosis of the lobar bronchial cancer is easily be delayed. But if pay attention and keep it a close combination with clinic, the early diagnosis will be attained on time.

Objective To study the HRCT appearances and diagnostic value of primary Sjgren’s syndrome ( pSS ) . Methods CT images of 12 cases of pSS were retrospectively analyzed . Results CT and HRCT scans showed pulmonary interstitial diseases in different degree mainly localized periphery of lung in all cases,the ground-glass opacity and interlobular septal thickening were preliminary features of pSS.Conclusion The ground-glass opacity of lung is active preliminary features of pSS,while the honeycombed lung is final feature of pSS.HRCT can help to determine the stage of pSS,and to estimate the prognosis in patients with pSS.

Objective To identify the features of 1H-magnetic resonance spectroscopy(1H-MRS) in patients with chronic obstructive pulmonary disease(COPD) of the hippocampus.Methods 32 patients with COPD randomly selected and 30 normal controls were selected.1H-MRS of the hippocampus was performed given to on all the subjects on hippocampus.The ratios of NAA/Cr and Cho/Cr were determined.Results In the bilateral hippocampus, the NAA/Cr ratio in patients with COPD demonstrated lower than that in normal controls(t=4.963,P=0.007 and t=4.856,P=0.023).The Cho/Cr ratio in patients with COPD showed higher than that in normal controls, the differences was were statistically significant(t=3.469,P=0.013 and t=3.019,P=0.047) Conclusion Abnormal metabolism of neurons on the hippocampus in patients with COPD is showed.