Objective: to discuss the value of spiral ct dual phase scanning for diagnosis of tumor thrombosis of venous system of hepatocellular carcinoma.
目的：探讨螺旋CT肝双期扫描对原发性肝癌门静脉、肝静脉及下腔静脉癌栓的诊断价值。
Based on the principle of the dual simplex method about linear programming, the changes of the value of the objective function in iterations have been studied.
运用求解线性规划对偶单纯形算法原理，进一步研究迭代过程中目标函数的变化。
Objective To study the value of dual-phase ~(18)F -FDG PET imaging, standardized uptake value(SUV) and retention index(RI%) in the diagnosis of malignancy.
目的探讨双时相~（18）F-FDG PET显像图像、标准摄取值（SUV）及储留指数（RI%）在恶性肿瘤诊断中的价值。
Objective: to evaluate the clinical value of dual-servo-heated method for heated humidifier of ventilator.
目的：研究呼吸机加热湿化器的双伺服加热方式的临床应用价值。
Objective To evaluate the diagnostic value of spiral ct dual-phase scan on acute pancreatitis.
目的探讨螺旋ct双期扫描在急性胰腺炎诊断中的价值。
Objective To assess the differential diagnostic value for pulmonary lesion with 18F-FDG dual-head gamma camera coincidence imaging ( 18F-FDGhPET/CT).
目的评价18F 氟脱氧葡萄糖双探头符合线路显像对肺部占位病变鉴别诊断的意义。
Objective To evaluate the value of different slow potentials characteristics in the slow pathway radiofrequency catheter ablation of dual atrioventricular node pathways.
目的本文探讨以不同特征的慢电位为靶点消融慢径的临床意义。
Objective To assess the value of dual-source CT (DSCT) in the diagnosis of aortic coarctation.
目的评价双源CT（DSCT）对主动脉缩窄的诊断价值。
Objective To investigate the value of low-dose dual-source CT in the diagnosis of coronary lesions in patients with Kawasaki disease.
目的探讨低剂量双源CT在儿童川崎病冠状动脉病变诊断中的应用价值。
Objective To explore the value of dual-source CT in diagnosing pulmonary embolism.
目的探讨双源CT在诊断肺栓塞中的价值。
Objective To explore the clinical value of digital radiography with dual-energy subtraction in diagnosis of coronary artery and valve calcification.
目的评价数字化双能量减影技术在肺结节及结节内钙化诊断中的临床价值。
Objective to assess the accuracy and the clinical value of dual-source computed tomography (DSCT) for detecting in-stent restenosis of the coronary arteries.
目的评估双源ct在冠状动脉支架置入术后再狭窄诊断的准确度，评价其在支架置入术后复查中的临床随访价值。
Objective to assess the accuracy and the clinical value of dual-source computed tomography (DSCT) for detecting in-stent restenosis of the coronary arteries.
目的评估双源ct在冠状动脉支架置入术后再狭窄诊断的准确度，评价其在支架置入术后复查中的临床随访价值。
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