E-Cadherin Expression and Relationship Between E-cadherin and Growth Patterns and CT Manifestations of Peripheral Pulmonary Carcinoma(PPC) / 实用放射学杂志

Objective To research the calcium dependent intercellular adhesion molecule (E-cadherin,E-cad)expression and the relationship between E-cad and growth patterns and CT manifestations of peripheral pulmonary carcinoma(PPC).Methods In this study,E-cad was tested by immunohistochemical SABC methed in 57 lung cancer specimens and,of which,the histologic study were made in the mass and lung-tumor interface of 33 resected specimens to detect the growth patterns.CT scan was obtained in all cases before operation.Results The results showed that the expresson levels of E-cad was lower in lung cancer specimens than those in adjacent normal lung tissues (?

Clinical Application of 16-slice Spiral CT in the Diagnosis of Vascular Diseases / 实用放射学杂志

Objective To evaluate the value of 16-slice spiral computed tomography angiography(16SCTA) and reconstruction technique in the diagnosis of vascular diseases. Methods Using 0.75 mm collimation,1mm slice thickness and 0.5mm repitition,16SCTA was performed in 100 patients with suspected vascular diseases.Reconstruction methods were multiple planar reconstruction(MPR),maximum intensity projection(MIP) and volume rendering technique(VRT). Results 65 patients were proved by pathology or DSA in 100 vascular diseases,which included cerebral aneurysm(n=8),brain arteriovenous malformation(AVM,n=2),pulmonary AVM(n=6),pulmonary artery embolism with thrombus of the lower limb vein(n=9),pulmonary sequestration(n=4),coronary artery soft plaque and / or calcification(n=20),aortic aneurysm(n=12),renal artery stenosis(n=3),superior mesenteric artery thrombus(n=2),femoral artery stenosis(n=1),soft tissue hemangioma(n=33).Three reconstruction techniques showed the size,shape and extent of the lesion and displayed the lesion in any directions.VRT could display three-dimensionally the lesion.MPR and MIP could show the thrombus of lesion,MIP and VRT could display the calcification of lesion. Conclusion Application of every 16 SCTA reconstruction technique can display clearly lesion and replace DSA in diagnosis of vascular diseases,and provides another reliable diagnostic method for patients and has clinical importance for treatment.