pitch 在特种医学分类中的翻译结果 --cnki翻译助手

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      pitch

螺距(1048)
间距(185)
用户修正 1 于 2008-01-08 20:17:15 提交
新增译词: 基音
修正依据: 语音学
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  螺距

    Methods Thirty-two patients who were suspected sclerosis or obliterated disease of lower extremity arteries were performed 16-section MDCT scan with ranges of 1,100～1,200mm, thickness 5mm, pitch 1.375, increment 1.2mm. The volume of contrast agent was 120～150ml, flow rate3.5～4ml/s. Scan was started with Smart prep auto-trigger, and the duration time was 20～35s.

    方法对32例临床疑有下肢动脉硬化闭塞症的患者行16排CT容积扫描及血管三维重建,扫描范围1100~1200mm,层厚5mm,螺距1.375mm,重建层厚1.2mm,造影剂量120~150ml,注射速率3.5~4ml/s,智能跟踪自动触发扫描,扫描时间20~35s,对全部图像行最大密度投影,容积再现及表面阴影显示重建。

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    Disease detecting rate of each group was compared and the influence of the three factors was analyzed with statistics software of SPSS 13.0.Results: 1.Group 1(slice width 1.0mm,pitch 1.0) had the maximal accuracy of nodus detection,and there was no significant difference among groups 2-6(P>0.05);

    利用SPSS13.0统计学软件,对层厚、螺距及重建重叠率进行三因素分析。结果:(1)第1组(层厚1.0 mm,螺距1.0)检出的准确率最高,但与第2、3、4、5、6组之间的差异无统计学意义(P>0.05);

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    2.The factor analysis showed that the pitch,slice width had statistical significance(P<0.05),while the reconstruction width did not(P>0.05).

    (2)三因素析因分析结果显示,层厚因素对检出率有显著影响(P<0.01),螺距因素对检出率有显著影响(P<0.05),重建重叠率对检出率无显著影响(P>0.05)。

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    Conclusions: 1.There are many influential factors in CTVC,and slice width and pitch are the two major influential factors;

    结论:(1)层厚和螺距是影响CTVC成像的主要因素。

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    Methods 38 cases clinically suspected of arteriosclerotic occlusive disease of lower extremities underwent CT angiography using a 16-slice scanner with range from abdominal aortic -renal arterial level to ankle joint, slice increment 2.5mm, pitch 1.375:1, reconstruction increment 1.25mm.

    方法对38例疑为下肢动脉病变的患者进行了16层螺旋CT血管成像,扫描范围为腹主动脉肾动脉开口水平至踝关节水平,层厚2.5mm,螺距1.375∶1,重建层厚1.25mm。

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  间距

    SSD and MPR were obtained on the basis of spiral transaxial imaging with use of 2-5mm collimation,1-1.5 pitch,and 1-5mm reconstruction interval.

    SSD和MPR以横断面螺旋扫描图像为基础,层厚2～5mm、螺距1～15、重建间距1～5mm。

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    The thickness of spiral scanning was 2.0 mm, index 1.0 mm,pitch 1.0 1.25. We injected 120 ml contrast medium intravenously at a rate of 3.0 ml/s.

    螺旋扫描层厚 2 .0 m m,间距 1.0 mm ,螺距 1.0～ 1.2 5 ,均以 3.0 ml/s速度注射对比剂12 0 ml;

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    Methods 82 patients underwent spiral CT pulmonary angiography using Simens Somatom Plus 4 CT scanner with 3 mm slice thickness pitch 1.5, 1.2 mm reconstruction interval and 3-4 ml/s contrast medium injection rate.

    方法　用西门子公司的SomatomPlus 4CT机 ,对 82例患者进行肺血管成像 ,扫描层厚 3mm ,螺距 1.5 ,重建间距 1.2mm ,对比剂注射速度 3～ 4ml/s。

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    SSD and MPR were obtained on the basis of spiral transaxial imaging with use of 3 - 5mm thickenas, 1-1.5 pitch, and 1-2mm reconstruction interval.

    SSD和MPR以横断面螺旋CT扫描图像为基础,层厚3-5mm,螺距1-1.5,重建间距1-2mm。

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    Results: Images obtained with spiral scan of 3mm collimation,pitch 1,1.5,2mm reconstruction interval,or axia overlapping scan of 3mm collimation,2mm interval,or appropriate threshold showed smoothness and exquisiteness on the surface and loss artifacts.

    结果　层厚 3mm ,螺距 1～ 1 5mm ,重建间距 2mm的螺旋扫描和层厚 3mm ,间距 2mm的重叠扫描 ,适当阈值显示的图像光滑、细腻 ,伪影较少。

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  “pitch”译为未确定词的双语例句

    The scan techniques were 120 kV, 0.35 s rotation speed, 0.22-0.24 pitch, body bowtie, 0.625 mm slice thickness.

    使用GELightSpeedVCT机,采用120kV,640mA,0.35s/360°,层厚0.625mm,pitch0.22~0.24,Bowtie选用largebody模式。

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    For BA-MSCTA, 10ml of 45% contrast was injected into BA (1~2ml/s), and scan was started 5s after injection, ranging from low cervix to the bottom of lung ( pitch 5mm, no overlap reconstruction ).

    BA-MSCTA方法是以1~2ml/s的速度注入45%的造影剂10ml，注入5秒时自下颈部（颈5~6椎体水平）向肺底扫描，准值5mm，无重叠连续重建。

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    CCT took 10mm slice thickness. TCT took small FOV(14cm-20cm,including one lung and mediastinum), 2-5mm slice thickness, 1-2 pitch and 40%-67% overlapping. Surface shaded display was applied in 36 of them.

    CT常规扫描采用10mm层厚，靶扫描采用小视野(FOV 14cm～20cm)，包括一侧肺野断面和纵隔，层厚2～5mm，p=1～2，重建时重叠40％～67％，36例作了三维重建(表面遮盖显示法，SSD)。

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    The best post-processing parameters for direct scanning images and MPR images are slice thickness 0.6mm, pitch 1.5, reconstruction increment 50%, high-resolution algorithm.

    对于直接扫描图像和MPR图像，最佳后重建参数为层厚0.6mm，重建间隔50％，骨算法重建。

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    which included pitch1.25, exposure dosage 195mAs，and resolution ST.

    双数列入第2组，准直2.5mm，有效层厚3.2mm，120，195mAs，标准分辨率(ST resolution)扫描，P＝1.25；

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查询“pitch”译词为用户自定义的双语例句

    我想查看译文中含有：的双语例句

为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法，我们为您准备了出自英文原文的大量英语例句，供您参考。
  pitch
       Based on the principle of formation of conjugate tooth contour, the equations of the cam's pitch curve are derived.
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       The continuity and symmetry of the cam's pitch curve are also analyzed.
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       The satellite passes chosen for the detailed analysis and modeling lay approximately along the cusp/cleft band from afternoon till prenoon MLT sectors, thus emphasizing the pitch-angle dispersion role with respect to the dispersion due to convection.
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       Some conclusions about the regime of pitch-angular diffusion into the loss cone are made.
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       It is assumed that in such a cascade each i-th system (group) of profiles has its own pitch ti (i=1, 2,?, s) and constant phase shift αi of the oscillations between neighboring profiles.
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         The purpose of this study was to compare the spiral CT images with conventional CT images and to optimize spiral CT techniques for scanning of the lungs. At the same kV,mAs,a wire phantom,a low contrast phantom and dried lung specimens were scanned with spiral CT and conventional CT respectively. Scans obtained by using different collimation,reconstruction algorithm and pitch were compared for edge sharpness,contrast resolution,visibility of bronchi and vessels.The results showed that narrow collimat...
            本文目的在于通过对螺旋ＣＴ及常规ＣＴ影像进行对比，取得肺成像的最佳螺旋ＣＴ扫描条件。作者对钨丝模型、低对比模型、空气干燥膨胀肺标本在相同ｋＶ、ｍＡｓ条件下进行不同层厚、不同重建算法、不同螺距的螺旋ＣＴ扫描及常规ＣＴ扫描，分析两种扫描成像的分辨率差异，支气管及血管的可见度及噪音。结果显示薄层（３ｍｍ）、超高分辨、高分辨重建算法时影像分辨率高。厚层（≥５ｍｍ）、标准、软组织重建算法时两种扫描方式影像略有差异。作者还对３２例胸部螺旋ＣＴ扫描病例进行分析，探讨螺旋ＣＴ扫描在胸部疾病诊断中的价值。
文摘来源
         This article introduced a technique for obtaining cerebral angiography by means of spiral CT. Our experience show that this technique by it's easy handling, minimal invasiveness and excellent visualization of the carotid and basilar arteries at the same time may prove useful as a screening tool or replacement for conventional angiography in some patients. The following technical points were disscussed: ①Pitch: For the single spiral CT, the value of pitch must be less than 1.0. The recommended ##...
            本文介绍一种用螺旋ＣＴ行脑血管造影技术。经验表明，此技术简便易行，几无创伤，且可同时显示颈动脉和基底动脉系统，可作为脑血管造影的筛选工具，对有些病例还能代替常规的创伤性脑血管造影。本文对下述三个技术要点进行了讨论：①螺距：单螺旋ＣＴ的螺距不应大于１，以０．８～１．０较理想，双螺旋ＣＴ的螺距不能大于２，以１．３～１．８为宜；②选择重建方式的重要性：ＭＩＰ法能较好显示脑血管的狭窄，阻塞及充盈缺损，而３－Ｄ表面成象法适合显示血管的管腔轮廓及其与骨性表面标志的三维关系；③ＭＩＰ横轴面上重建的血管图像较纵轴重建的血管图像质量好，因此，我们必须尽可能使扫描断面与感兴趣血管的长轴平行。
文摘来源
         To design equitable technical factorsof spiral CT study the mechansim and influential elements of artifact and the displayed grades of threedimensional pulmonary vessels, we inflated thelungs which were drawn from fresh cadavers (n=2)and living dogs (n=2) with air after Pouring contrast into pulmonary arteies. When pitch was 1, weexamined the influence of different collimations, foons of view (FOV) and reconstruction intervals onangiography with threshold shaded surface display(SSD). Results: 1. Thin...
            为了设计螺旋CT三维血管成像的合理扫描条件、重建方法，探讨其肺血管三维成像的显示级别和伪影的形成机制、影响因素，对离体人、狗心肺各两具行肺血管灌注后充气，当pitch为1时，观察不同层厚、FOV和重建间隔对用表面覆盖法进行肺血管三维成像的影响。结果：①扫描层厚越薄，FOV越小，重建间隔适当缩小，肺血管的显示级别升高。②阶梯伪影由不连续内插算法引起，与床进速度和重建间隔有关。③拉长伪影决定于层敏感性，受床进速度、pitch和内插算法影响。表明螺旋CT肺血管三维成像受诸多成像因素影响，需合理选择。
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