a-scan
英 [ə skæn]
美 [ə skæn]
网络 a扫描; A超
双语例句
- Axial length measurement in eyes with macular edema A-scan ultrasound versus IOL Master
A超与IOLmaster测量黄斑区水肿患者眼轴长度的比较 - Comparative Estimation of Axial Length and Keratometric Power Measured by IOLMaster 、 Contact Ultrasound A-scan and Keratometer Quantitative detection and analysis of sensitivity by micro-keratoscope
IOLMaster测量眼球轴长和角膜曲率与A超和角膜曲率计测量的相关性研究显微定量角膜检查镜测量角膜敏感性的检测分析 - PCI has some limitation in the biometry of mature or near mature senile cataract eyes and can't substitute conventional ultrasonic A-scan in certain cataract cases at present.
PCI用于近熟期和成熟期老年性白内障的眼球轴长测量有一定的局限性，目前仍不能取代传统的A超生物测量法。 - Methods A-scan and B-scan were used to examine 6 cases of CCH.
方法使用标准化A超联合B超诊断6例脉络膜血管瘤。 - Objective To compare 3 methods of axial length measurement, contact A-scan, A-scan combined B-scan and IOL-Master in high myopia with cataract.
目的比较A超、A超和B超联合、IOL-Master三种方法测量高度轴性近视白内障患者眼轴的准确性。 - Methods The axial lengths of affected and fellow eyes of 16 patients with CRVO and 19 with BRVO and of their controls were measured with A-scan ultrasonography. The control group consisted of 16 individuals for CRVO and 19 for BRVO matched in age and sex.
方法应用A型超声仪对16例中央静脉阻塞（CRVO）和19例分枝静脉阻塞（BRVO）眼轴进行测量，两对照组分别同两病例组年龄和性别相配，例数相等。 - Methods To analyze the diagnosis of orbital tumors 80 cases with standardized A-scan from July 1999 to April 2000, Armed Police General Hospital.
方法回顾性分析武警总医院眼科自1999年7月至2000年4月用标准化A超诊断眶内肿瘤80例。 - Combination standardized A-scan and high resolution B-scan in the diagnosis of choroidal hemangioma and choroidal malignant melanoma
标准化A超联合B超诊断脉络膜血管瘤和脉络膜黑色素瘤 - In the software section, display the A-scan and B-scan window, then discuss the accomplishment of digital filter software.
软件部分展示了A扫描和B扫描图像界面，并叙述了软件滤波部分的实现过程。 - Application of A-scan Ultrasonography in the Diagnosis and Treatment of Myositis of Extraocular Muscles ( with a Report of Four Cases)
A型超声在眼外肌炎的诊断和治疗中的应用（附4例报告） - Before experiment at experimental point, refractive state and axial length were determined with retinoscopy and A-scan ultrasonography respectively. The expression of MMP-2 mRNA was detected by RT-PCR.
实验前及预定时间进行检影验光及超声眼轴长度测量，RT-PCR检测巩膜MMP-2mRNA表达水平。 - Standardized A-scan of choroidal melanomas showed lower internal reflectivity and higher sound absorption, while B-scan showed dome-shaped or mushroom-shaped solid lesions, revealing choroidal excavation.
脉络膜黑色素瘤标准化A超表现为病变内反射较低，声衰减明显，B超示限内半圆形或蘑菇形实性隆起，可见脉络膜凹陷现象。 - A newly designed high frequency ultrasonic testing system with both A-scan testing and(?) scan imaging functions is described.
介绍一种新型高频超声检测系统，它同时具有A型超声探伤和C型超声扫描成象的功能。 - A combination of standardized A-scan and B-scan is more effective in diagnosing choroidal hemangioma and choroidal malignant melanoma.
标准化A超联合B超可对脉络膜血管瘤和脉络膜黑色素瘤的诊断起到较好效果。 - Application of standardized A-scan for the diagnosis of orbital tumors
标准化A超在眼眶肿瘤诊断中的应用 - A new ultrasonic testing system has been developed for application to stator insulation of large generator. It provides A-scan signals and C-scan map for tested specimen.
自行研制了大电机定子绝缘超声波检测系统，它能同时显示被测试样的A扫描脉冲回波和C扫描平面图。 - This simulation system can visualize the ultrasonic test process, simulate the ultrasonic propagation path and A-Scan.
该系统实现了超声检测过程的三维可视化并对超声波传播路径和A型显示进行了较为准确的模拟。 - When refractive error is more than 9 D, the measurement of the axial lengths isn't accurate. The possible reason is that superhigh myopia combines with posterior scleral the which makes A-scan aim at macula difficultly.
但当屈光度≥9D时，眼轴测量欠准确，这可能与超高度近视均伴有后巩膜葡萄肿，A超测量眼轴时很难准确落于黄斑区有关。 - Application of IOL Master Combining with A-scan for Intraocular Lens Calculation in Grade 3,4 Nucleus Lens
IOLmaster联合A超对3,4级核晶状体进行人工晶状体度数测量 - Ocular A-scan measurement of primary glaucoma
原发性青光眼病人的眼A超测量 - The defects and their locations can be predicted by the characteristics of obtained A-scan signal, B-scan and C-scan images, and the ultrasonic results are verified by metallographic analysis of brazed joint.
研究结果表明，结合A扫描信号、B扫描和C扫描图像的特征，能够判断缺陷类型及其位置，并通过断面金相分析进行了验证。 - Wavelet transform of ultrasonic A-scan signals: testing solid-state welded joints
固相连接接头超声A扫描信号的小波变换 - Methods Extraocular rectus muscles of 107 subjects ( 214 eyes) were measured with standard A-scan and contact B-scan ultrasonography.
方法使用标准化的A/B型超声仪，采用标准化A超联合B超的方法测量107例214眼的眼外肌厚度。 - A-scan combined B-scan, IOL-Master compared with A-scan outcomes analysis, in high myopia with cataract
用A超、B超及IOL-Master测量高度近视白内障眼轴的精确性比较 - Studied the cluster and background reduction algorithm and, proposed an enhanced adaptive step average method based on the amplitude of A-scan signal;
研究了探地雷达回波信号杂波及背景去除算法，改进了一种基于A-scan信号强度的自适应滑动平均法； - Methods Bilateral axial lengths in 24 cases of unilateral traumatic cataract were measured with A-scan ultrasonography, axial lengths of bilateral eyes were compared. contrasting;
方法A超测量24例单眼发病的外伤性白内障形觉剥夺眼及对照眼的眼轴，并进行双眼对比分析。 - To examine all the albino rabbits after the PKP by general observing, slit-lamp examination and A-scan cornea thickness measuring.
术后不同时间对所有实验动物进行大体观察、裂隙灯检查、A超角膜测厚。 - According to the strong correlation of defect signals in adjacent A-scan lines, a modified wavelet based algorithm is presented. The presented algorithm employs the merits of both multi-resolution of wavelet and cross-correlation of adjacent signals.
在小波分析的基础上，利用缺陷信号在相邻A扫描数据序列中具有强相关性的特点，提出了基于子波相关的改进算法，该算法兼备小波多分辨分析及信号互相关两者的优点。 - The running speed of the detection software was improved through opening multi-threaded approach in the program, and the detection speed was enhanced. "Ultrasonic C-scan" buttons was added in the test program to achieve the real-time display of ultrasonic A-scan and ultrasonic C-scan.
通过在程序中开辟多线程的方法提高了检测软件的运行速度，从而提高了检测速度。