诊断上

The raw data was processed by using axial, coronal and double oblique multi-planar reformation; Images obtained were graded in terms of quality with a 5-point scale(5=excellent, 4=good, 3=fair, 2=poor, and 1=nondiagnostic). In grading image quality at axial MPR, The radiologic specialists focused on the subarcuate fossa, tendon of tensor tympani, facial recess, vestibular aqueduct and pyramidal eminence, In grading image quality at coronal MPR, attention was given to the scute, crista transversa, fenestra cochleae, lateral malleal ligament and snake eyes signature of cranial nerve, In the grading of the image quality at double oblique MPR, the radiologic specialists concentrated on the malleus, incus, stirrup bone, upper bony semicircular and aquaeductus fallopii, and then to implement statistical analysis. In order to choose the minimum tube current values and the maximum pitch that can satisfy the diagnosis request, image quality of axial, coronal and double oblique reformation images was compared with different tube current groups. 15 ears of volunteers were used to test the validity with the scanning parameter. Subsequently noise, MTF and dose length product were measured by phantoms in different tube current and pitch, the parameters obtained were compared and taken into statistics analysis.

扫描模式使用临床常用的颞骨螺旋扫描方式：管电压120 kV，准直宽度20×0.6 mm，视野200 mm，重建矩阵512×512，旋转时间1 s/r，重建层厚0.6 mm，重建间隔0.3 mm，分别改变管电流(380、300、200、160、120和80 mA)和螺距(0.8、1.0和1.2)进行扫描和重建，然后对颞骨进行横断面、冠状面和双斜面多平面重组，于重组后的横断层面图像上选取弓形下窝、鼓膜张肌腱、面神经隐窝、前庭导水管和锥隆起5个解剖结构，冠状面重组图像上选取盾板、横嵴、蜗窗、面神经的蛇眼征和锤骨外侧韧带5个解剖结构，双斜面重组图像上选取锤骨、砧骨、镫骨、上骨半规管和面神经管5个解剖结构，在双盲的情况下由放射学专家分别对各管电流和螺距下扫描的重组图像进行评分，随后进行统计学处理，从中筛选出满足诊断要求的最低管电流值和最大的螺距，分别采用患者25例(15耳)用该管电流值和螺距验证其可行性；然后利用模体分别测试各管电流和螺距下的图像的空间分辨率、噪声及其剂量长度积，并对测试所得参数数值进行比较和统计学处理。

Abstract］ objective to assess a new imaging technique,optical coherence tomography,for the diagnosis of central serous choroidoretinopathy.methods forty-five cases (45 eyes) of csc were examined by ophthalmoscopy,binocular indirect ophthalmoscopy and oct.some patients were monitored by oct.results in images of oct in 45 eyes of csc,42 eyes showed serous neurosensory detachement,2 eyes appeared retinal pigment epithelial detachement and 1 eyes combined neurosensory detachement with pigment epithelial detachement.monitoring images of oct in 9 eyes revealed absorption of serous fluid and decrease of neurosensory detachment.conclusion oct is potentially useful as a new and noninvasive diagnostic technique for quantitative examination of patients with csc and objectively monitoring the clinical course of the serous retinal detachement in this disease.

摘要］ 目的评价光学相干断层成像(optical coherence tomography，oct )对中心性浆液性脉络膜视网膜病变的临床诊断价值。方法对45例(45眼)中心性浆液性脉络膜视网膜病变患者散瞳后分别进行直接检眼镜、双目间接检眼镜、oct 检查。9例复查时再次进行oct检查。结果 45眼中心性浆液性脉络膜视网膜病变的oct 图像，42眼表现为单纯神经上皮层脱离，2眼为单纯色素上皮层脱离，1眼同时存在神经上皮层脱离和色素上皮层脱离。9眼复查的oct通过测量脱离高度的降低可观察到液体的不同程度吸收。结论 oct 是一种新的、无损伤性的、非接触性的、并能定量的检查方法，能明确中心性浆液性脉络膜视网膜病变的脱离部位，并能进行定量的追踪观察。

This method also can be applied to many areas that need to handle a tremendous amount of data, for example in the industrial, medical or meteorological area etc.. We can use this method to diagnose and prognose results after the junction tree is built.

同样的方法可应用在很多领域上，如类似制程的自动化科技上、大量病历资料的医学上、大量数据的气象上…等等各种需要处理大量资料的领域，都可以应用此方法来进行诊断和预测的工作。

This research boosts the study in the new generation of tests theory in our country, and offers references to the functions realization of cognitive diagnosis of the geometric analogy test in practice.

本研究从理论上推进了我国在新一代测验理论上的研究，从实践上为几何类比推理测验的认知诊断功能实现提供技术上的参考。

This trial has established that unsedated small-caliber endoscopy used in an office setting is technically feasible, well-tolerated and accurate in the screening and diagnosis of Barrett's esophagus.

这项试验已经被证明，用于办公环境的不需要麻醉的小口径内窥镜，在筛选和诊断巴雷特食管方面，技术上是可行的，病人容易忍受，诊断准确。

Based on the analysis of characteristics of two classes of technical process fault and defects of two familiar fault detection and diagnosis methods , this paper introduced an early fault detection and diagnosis method for technical process.

在分析了生产过程两类故障的特点和常规故障诊断方法的缺陷的基础上，提出了生产过程早期故障检测与诊断方法。

ABSTRACT :Based on the analysis of characteristics of two classes of technical process fault and defects of two familiar fault detection and diagnosis methods , this paper introduced an early fault detection and diagnosis method for technical process.

在分析了生产过程两类故障的特点和常规故障诊断方法的缺陷的基础上，提出了生产过程早期故障检测与诊断方法。

How to use artificial neuron network to detect and diagnosis faults of chillers is discussed in this paper. This paper introduces several methods used for FDD and their characteristics.

本文较系统的分析了各类诊断方法的特点，在此基础上采用人工神经网络的方法对冷水机组故障诊断进行研究。

A window-based fault diagnosis algorithm MFD (multi-window fault diagnosis) is proposed for the bipartite FPM. MFD takes the correlation of adjacent time windows into account. As a result,it can reduce the impact of improper time window size setting.

提出了基于时间窗口的故障诊断算法--多窗口故障诊断(multi-window fault diagnosis，简称MFD)，该算法通过综合考虑相邻时间窗口之间的关联关系，在一定程度上降低了因时间窗口大小设置不合适而给算法准确度带来的影响。

this gets sick the clinical symptom not to have the characteristic value, the medical history has the reference value.the sphere focus of infection has the crecent moon in the phantom performance to draft, the air bronchial tube drafts, the corona drafts to this sickness has the prompt value, sends the tubercle to see the small empty shade to have the diagnosis value, if in the discovery meniscus cavity has along with the body posture change "in the hole the ball drafts", has the important diagnosis value to the lung aspergillomycosis.this gets sick the diagnosis needs the pathology and the bacteriology inspection.

本病临床症状无特征性，病史有参考价值。在影像表现上球形病灶有新月征、空气支气管征、晕征对本病有提示价值，多发小结节均见小空洞影有诊断价值，如发现半月形空洞内有随体位改变的&洞中球征&，对肺曲菌病有重要诊断价值。本病的确诊需病理和细菌学检查。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。