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OBJECTIVE: Computer has become an important tool in medical works. However, application ability of clinical physicians is imbalanced with the fast development of information technology (IT) system. Therefore, it is necessary to explore a bridge between researchers and integrate decentralized IT resources. Based on this survey, we provide some views concerning IT applying in medical procedures. METHODS: The correlated computer information was collected from a patient with coronary heart disease from early diagnosis, interventional therapy to coronary bypass surgery, until rehabilitation. The medical staffs were investigated from the general status, computer skills, knowledge structure, as well as the acceptance degree of computer application to measure computer skills. RESULTS: The correlated computer information was characterized by large soft variability, a large time span, and various date categories with more dynamic data or three-dimensional data. The investigation of computer knowledge demonstrated that the lack of IT knowledge resulted in poor outcome in their appointed tasks. From the view of self-assessment of IT knowledge, nursing staff and technician exhibited deficiency IT knowledge than doctors, who learned from department training, self-study or internet. Resident physicians and attending physicians were familiar with office system, so they were satisfied with IT skills. In contrary, nurses and majority of high-ranking professor or chief physicians were found difficult to study IT skills. However, most nurses were fond of their office system. The results also demonstrated that people aged 31 -40 years were easy to receive IT system. CONCLUSION: It is very important to enhance the cooperation between computer researchers and medical users for the treatment of coronary atherosclerotic heart disease.
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<p><b>OBJECTIVE</b>To determine and analyze plasma ammonia concentration difference of the portal vein system and ramifications of rabbits and consequently guide selection of the portal vein in transjugular intrahepatic portosystemic shunt (TIPS) so that reduce shunt-induced hepatic encephalopathic incidence. To evaluate clinical significance of transjugular intrahepatic left branch of portal vein portosystemic shunt (TILPS) and to analyse hemodynamics of both branches of the portal vein and to observe long-term results in the prevention of encephalopathy.</p><p><b>METHODS</b>Blood samples in different portal vein branches of rabbits were collected and the plasma ammonia concentration was assayed and compared. The left branch of portal vein was used as the puncture site to perform TILPS and to keep away from the right branch of portal vein blood that contains nutrition and toxin.</p><p><b>RESULTS</b>Plasma ammonia content was superior in the mesenteric vein and higher than the portal vein branch, the splenic vein, and the vena cava. The right portal vein was above the left. Encephalopathy did not occur in all patients within 3 months. Of the 341 patients undergoing TILPS, encephalopathy occurred in only 5 patients (1.47%) and shunt abnormalities in 19 patients (5.57%) verified by venography during overall follow-up period.</p><p><b>CONCLUSIONS</b>Selective left branch of the portal vein portosystemic shunt can decrease encephalopathy obviously and protect liver function.</p>
Subject(s)
Adult , Aged , Animals , Female , Humans , Male , Middle Aged , Rabbits , Ammonia , Blood , Follow-Up Studies , Hepatic Encephalopathy , Blood , Portal Vein , General Surgery , Portasystemic Shunt, Transjugular Intrahepatic , Treatment OutcomeABSTRACT
Objective To evaluate the application of rotational digital subtraction angiography(DSA) with three-dimensional(3D) reconstruction in the diagnosis and treatment of intracranial aneurysms.Methods Philips ALLUR12 system was employed to perform 2D and rotational DSA examination for 35 patients suspected of intracranial aneurysms with subarachnoid hemorrhage,and the 3D reconstruction of the arteries was then performed with computer to gain the stereopicture of localization and direction of the aneurysms,shape and size of aneurismal neck and vascular branch anatomy.The rotational DSA and 3D reconstructed images were compared with that of conventional 2D DSA.Results In the 35 patients,36 intracranial aneurysms out of 30 cases were found by conventional DSA,but there were 7 aneurysms with obscure direction and construction and 3 aneurysms with obscure aneurismal neck,and no sign of aneurysm was found in the other 5 patients by the conventional DSA.After rotational DSA and 3D reconstruction,additional 3 microaneurysms were found,with the result of final diagnosis of 39 aneurysms in total in 33 patients,though if still failed to find an aneurysm in two patients.The overall view of aneurysm,location and size of aneurysmal neck,anatomy of parent artery and vascular branches in the vicinity,and even the microaneurysms manifested themselves clearly by rotational DSA and 3D reconstruction examination,and the sheltering effects due to overlapping artery were avoided.Conclusion Rotational DSA can successfully display the aneurysm sac and anatomical structures of aneurysmal neck and surrounding vascular branches in a 270? rotational optic angle,and a stereopicture of aneurysmal size,direction,parent artery and surrounding vascular branches can be showed more clearly compared with conventional DSA.It can not only greatly improve the diagnostic sensitivity and reduce the rate of misdiagnosis,but also provides the doctors with overall and precise aneurysmal images for the operation and interventional treatment.
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Objective To study the clinical significance of using MSCT(16 multi slice spiral CT,MSCT)to evaluate the patency of coronary arterial stent,and to explore the factors contributing to the image quality.Methods 32 patients with coronary arterial stent im- plantation received MSCT.The shape and position of the stent and the situation of restenosis were checked with several methods.Of the 32 patients,the results in 7 cases were further verified by X-ray coronary artery angiography.The image qualities were classified in three grades.The influence factors contributing to imaging quality were analyzed.Results The rate of good image quality for MSCT coronary artery angiography was 87.5%(28/32).The rate of good image quality for the patients with heart rate less than 60 was 94.7%,for those with heart rate of 61-70 was 88.9%,and for those with heart rate over 70 was 50.0%,there existed significant differences(X~2=16.354, P
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Purpose:To assess the security and efficacy of mechanical recanalization and stenting of lilac arteries with complete occlusions without preceding thrombolytic therapy. Materials and methods:During a 3-year period,Eighteen consecutive patients underwent mechanical reeanalization and stenting for complete occlusion of the iliac artery.The method involved recanalizition with a guide wire and a catheter advanced as a while unit through the occluded segment(snowplow technique).Results The occluded segments were successfully traversed and dilated and 32 stents were placed in 18 patients.The mean ankle-brachial index (BAI)increased from 0.39?0.33 before the procedure to 0.86?0.13 after the procedure(P