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6篇 您的检索式:作者名="H.Anderson"
    题名 作者 年代 出处 被引量
1Prognostic value of tumour necrosis and host inflammatory responses in colorectal cancer显示文摘C. H.Richards C. S. D.Roxburgh J. H.Anderson R. F.McKee A. K.Foulis P. G.Horgan D. C.McMillan 2012Br J Surg2012,,2:1
2Surgery for occult rectal prolapse显示文摘A. J.Brown J. H.Anderson R. F.McKee I. G.Finlay 2004Colorectal Disease2004,,3:1
3一种低成本地球敏感器的开发显示文摘洛克希德导弹及空间公司(LMSC)正在开发一种低成本的地球敏感器(LCES),它适合于地球同步轨道(GEO)及低地球轨道(LEO)的各种应用。LCES以最新的热电探测器阵列工艺为基础。它是用最少的元器件设计的,设计中使用了专用集成电路(ASIC)和混合集成电子技术。整个敏感器集装于一个单独的盒子中,其重量不到2.51b,功耗小于2.0W。敏感器可设计成全冗余结构。敏感器有低精度(±0.5°)和高精度±0.3°)两种工作模式。在GEO的应用中,地球被成像在X形的焦平面上,地平圈则投影在臂的中心点上。俯仰及滚动姿态可以根据地平圈位置的信息计算出来。对LEO应用,则要在孔径光阑的前面加一个反射式棱镜,以便把4个位置的地平圈图像投影到相同的焦面位置上。本文将介绍这种设计及其开发试验的结果。Richard H.Anderson 张翰英 潘科炎 1995控制工程(北京)1995,,5:0
4Classifying Cardiac Anomalies in Right and Left Isomerism:Concordant and Discordant Patterns显示文摘Aims:Evidence is emerging that,in the setting of isomerism,the atrial and bronchial arrangement are not always concordant,nor are these patterns always harmonious with the arrangement of the abdominal organs.We aimed to evaluate the concordance between these features in a cohort of patients with cardiac malformations in the setting of known isomerism,seeking to determine whether it was feasible to assess complexity on this basis,in this regard taking note of the potential value of bronchial as opposed to appendage morphology.Methods and Results:We studied 78 patients known to have isomerism of the bronchuses,43 with right and 35 with left isomerism.Appendage anatomy could be determined in 49 cases(63%),all but one of these being concordant with bronchial anatomy.When assessing abdominal features,in only 59 cases(76%)was splenic morphology in keeping with the thoracic findings.As expected,right isomerism was associated with greater complexity of cardiac malformations,with an odds ratio of 6.53,with confidence intervals from 2.2–19.3(p<0.001).The odds were slightly decreased with thoraco-abdominal disharmony,when lesions shown to carry higher risk were then found in the setting of left isomerism.Conclusion:Harmony is excellent between bronchial and appendage isomerism,but less so with the arrangement of the abdominal organs.Right isomerism in our cohort,was indicative of a sixfold increase in intracardiac complexity.When discordance was found between the systems,however,the cardiac anomalies were less typical of the anticipated findings for right vs.left isomerism of the appendages.Lilia Oreto Giuseppe Mandraffino Paolo Ciliberti Teresa P.Santangelo Placido Romeo Antonio Celona Placido Gitto Lorenzo Galletti Fiore S.Iorio Alfredo Di Pino Aurelio Secinaro Paolo Guccione Robert H.Anderson Salvatore Agati 2023Congenital Heart Disease2023,18,1:0
5Disharmonious Ventricular Relationship and Topology for the Given Atrioventricular Connections.Contemporary Diagnostic Approach Using 3D Modeling and Printing显示文摘In the last issue,two case reports separately present examples of the extremely rare and complex congenital heart diseases that show concordant atrioventricular connections to the L-looped ventricles in the presence of situs solitus.Both cases highlight that the relationship between the two ventricles within the ventricular mass is not always harmonious with the given atrioventricular connection.Such disharmony between the connections and relationships requires careful assessment of the three basic facets of cardiac building blocks,namely their morphology,the relationship of their component parts,and their connections with the adjacent segments.3D imaging and printing can now facilitate an otherwise difficult diagnosis in such complex situations.Rotation of either the 3D images or the models permit accurate assessment of the ventricular topologic pattern by creating the right ventricular en-face septal view,thus facilitating placement of the observer’s hands.As we now emphasize,an alternative approach,which might prove more attractive to imagers,is to rotate the ventricular mass to provide the ventricular apical view,thus permitting determination of the ventricular relationship without using the hands.Shi-Joon Yoo Ankavipar Saprungruang Christopher Z.Lam Robert H.Anderson 2022Congenital Heart Disease2022,17,5:0
6Exercise Catheterization for Hemodynamic Evaluation of Adults with Coarctation of the Aorta显示文摘Background: Coarctation of the aorta (CoA) is associated with a generalized arteriopathy and long-term complicationsdespite repair. Data on invasive exercise hemodynamics in this population are lacking. Accordingly, wereviewed adults with CoA undergoing exercise catheterization to assess 1. hemodynamic profile;2. feasibilityfor assessment of CoA severity. Methods: Twenty patients undergoing exercise cardiac catheterization (12 armadduction and 8 supine cycle ergometry) at a quaternary care center between 2004 and 2021 were identified. Restingand exercise hemodynamic data were abstracted from the procedure logs. Results: Mean age was 43.6 ±12.0 years. Eleven patients (55%) had resting pulmonary arterial wedge pressure (PAWP) >15 mmHg;amongthose undergoing arterial catheterization, left ventricular end-diastolic pressure was >15 mmHg in 63%. Elevenpatients (55%) had pulmonary hypertension: 7 (35%) combined and 4 (20%) isolated post-capillary. At peak exercise,ΔPAWP/Δcardiac output (CO) ≥2 and Δmean pulmonary artery pressure/ΔCO ≥3 mmHg/l/min were foundin 7 (78%) and 6 (67%) patients, respectively;the composite of exercise PAWP ≥25 mmHg or ΔPAWP/ΔCO>2 was seen in 12 (86%). CoA peak-to-peak gradients at baseline (n = 14) and during exercise (n = 9) were 12(3–16) and 16 mmHg (9–28), respectively. Only 2 patients had an increase in CoA gradient to >20 mmHg withexercise. Conclusions: Diastolic dysfunction and pulmonary hypertension were highly prevalent, with exerciseunmasking abnormal diastolic and pulmonary vascular reserve in some individuals. Most patients failed to showsignificant increases in CoA peak-to-peak gradients with exercise. Further studies are warranted to establish thebest diagnostic method for CoA severity assessment.Irene Martin de Miguel C.Charles Jain Alexander C.Egbe Jason H.Anderson Heidi M.Connolly William R.Miranda 2022Congenital Heart Disease2022,17,6:0
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