Since its introduction,endoscopic ultrasound(EUS)guided fine needle aspiration and fine needle biopsy have become an indispensable tool for the diagnosis of lesions within the gastrointestinal tract and surrounding or...Since its introduction,endoscopic ultrasound(EUS)guided fine needle aspiration and fine needle biopsy have become an indispensable tool for the diagnosis of lesions within the gastrointestinal tract and surrounding organs.It has proved to be an effective diagnostic method with high accuracy and low complication rates.Several factors can influence the accuracy and the diagnostic yield of this procedure including experience of the endosonographer,availability of onsite cytopathology services,the method of cytopathology preparation,the location and physical characteristics of the lesion,sampling techniques and the type and size of the needle used.In this review we will outline the recent studies evaluating EUS-guided tissue acquisition and will provide practical recommendations to maximize tissue yield.展开更多
Background Chronic kidney disease（CKD） patients are at high risk of atherosclerosis. Structural and elastic changes of carotid artery wall reflect the range and degree of atherosclerosis in peripheral arteries, whic...Background Chronic kidney disease（CKD） patients are at high risk of atherosclerosis. Structural and elastic changes of carotid artery wall reflect the range and degree of atherosclerosis in peripheral arteries, which can be acquired by ultrasound radiofrequency-data technique automatically and precisely. Methods A total of 66 CKD patients with negative results on routine carotid artery ultrasound examination were enrolled, and 30 healthy physical examinees were selected as controls. Patients were divided into 3 groups according to CKD stage： stage 1-2,stage 3-4 and stage 5. Clinical characteristics and the laboratory results were acquired. Intima-media thickness（IMT） and compliance coefficient（CC） of common carotid artery were measured by ultrasound radiofrequencydata technique（QIMT and QAS）. Predictors of IMT and CC were analyzed respectively. Results Among the 66 patients,15 were on stage 1-2, 15 on stage 3-4 and 36 on stage 5 according to e GFR. The common carotid artery IMT（CCIMT）of all the CKD groups except patients on stage 1-2 was significantly increased when compared with controls. The CC of carotid artery significantly was decreased in every CKD group compared with controls. Age and CKD stage were significant predictors of CCIMT and CC in CKD patients（P〈0.05）. Aging and advanced CKD stage were associated with increased CCIMT（OR=4.855 and 4.969） and decreased CC（OR=32.178 and 14.068）. Conclusions Radiofrequency-data technique can detect the small changes of structure and elasticity of carotid artery wall in CKD patients. CKD patients have increased IMT and decreased elasticity of carotid artery compared with healthy subjects. Aging and advanced CKD stage are associated with increased CCIMT and decreased CC.展开更多
文摘Since its introduction,endoscopic ultrasound(EUS)guided fine needle aspiration and fine needle biopsy have become an indispensable tool for the diagnosis of lesions within the gastrointestinal tract and surrounding organs.It has proved to be an effective diagnostic method with high accuracy and low complication rates.Several factors can influence the accuracy and the diagnostic yield of this procedure including experience of the endosonographer,availability of onsite cytopathology services,the method of cytopathology preparation,the location and physical characteristics of the lesion,sampling techniques and the type and size of the needle used.In this review we will outline the recent studies evaluating EUS-guided tissue acquisition and will provide practical recommendations to maximize tissue yield.
基金supported by Medical Scientific Research Foundation of Guangdong Province(No.201611216254466)
文摘Background Chronic kidney disease（CKD） patients are at high risk of atherosclerosis. Structural and elastic changes of carotid artery wall reflect the range and degree of atherosclerosis in peripheral arteries, which can be acquired by ultrasound radiofrequency-data technique automatically and precisely. Methods A total of 66 CKD patients with negative results on routine carotid artery ultrasound examination were enrolled, and 30 healthy physical examinees were selected as controls. Patients were divided into 3 groups according to CKD stage： stage 1-2,stage 3-4 and stage 5. Clinical characteristics and the laboratory results were acquired. Intima-media thickness（IMT） and compliance coefficient（CC） of common carotid artery were measured by ultrasound radiofrequencydata technique（QIMT and QAS）. Predictors of IMT and CC were analyzed respectively. Results Among the 66 patients,15 were on stage 1-2, 15 on stage 3-4 and 36 on stage 5 according to e GFR. The common carotid artery IMT（CCIMT）of all the CKD groups except patients on stage 1-2 was significantly increased when compared with controls. The CC of carotid artery significantly was decreased in every CKD group compared with controls. Age and CKD stage were significant predictors of CCIMT and CC in CKD patients（P〈0.05）. Aging and advanced CKD stage were associated with increased CCIMT（OR=4.855 and 4.969） and decreased CC（OR=32.178 and 14.068）. Conclusions Radiofrequency-data technique can detect the small changes of structure and elasticity of carotid artery wall in CKD patients. CKD patients have increased IMT and decreased elasticity of carotid artery compared with healthy subjects. Aging and advanced CKD stage are associated with increased CCIMT and decreased CC.
