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1)  digital subtraction
数字相减
1.
A method to eliminate the zero-order diffraction spot with digital subtraction and digital reconstruction of hologram is suggested.
分析了无透镜傅里叶变换全息图数字再现时零级衍射斑对再现像的影响,提出了用全息数字相减及数字重现来消除零级斑实现无零级数字全息再现的方法,给出了计算机模拟实验结果,并对再现结果作了分析。
2)  digital disaster reduetion
数字减灾
3)  digital subtraction
数字减影
1.
Types of arterio-portal fistula of hepatocellular carcinoma patients on helical computed tomography and digital subtraction angiography;
肝癌伴肝动脉-门静脉瘘的螺旋CT和数字减影血管造影类型及介入治疗
2.
Diagnosis and treatment of intracranial aneurysms with three-dimensional reconstructed rotational digital subtraction angiography;
旋转式数字减影血管造影成像在颅内动脉瘤诊治中的应用
3.
Diagnostic value of three-dimensional digital subtraction angiography in intracranial aneurysms;
三维数字减影血管造影对颅内动脉瘤的诊断价值
4)  DSA
数字减影
1.
Analyzes the example of malfunctions due to misoperation in the application of DSA equipment in therapeutical radiological intervention.
剖析了数字减影设备在介入放射治疗手术中因使用、操作不当造成DSA设备应用故障的实例,而合理使用、熟练操作是可以减少或避免该类应用故障的发生。
2.
Methods Operative treatmen and its efficacy of 32 patients with AVM rupture and hemorrhage confirmed by CT,CTA,MRI,MRA,DSA,operation and pathological examonation were anslysed retrospectively.
方法回顾性总结经CT、CT血管造影(CTA)、MR I、磁共振血管成像(MRA)、数字减影血管造影(DSA)及手术病理确诊的32例脑动静脉畸形破裂出血的手术抢救和治疗效果。
3.
Objective: To conclude the performance of digital subtraction angiography (DSA) in detecting oculomotorius paralysis caused by cerebral aneurysms.
目的:总结脑动脉瘤致动眼神经麻痹的数字减影血管造影(DSA)的表现。
5)  Digital subtraction angiography
数字减影
1.
Objective To evaluate the clinical value of rotational digital subtraction angiography(DSA).
方法 采用PHILIPSV5 0 0 0数字成像系统 ,对 3 0例患者实施旋转式数字减影血管造影 48例次。
6)  digital substraction
数字减影
1.
Objective To comparatively study the clinical application values of three-dimensional spiral computed tomography angiography(3D- CTA) and three-dimensional digital substraction angiography(3D-DSA) technique in posterior circulation intracranial aneurysm (PCA).
目的比较三维螺旋CT血管造影术(3D-CTA)和三维数字减影血管造影术(3D-DSA)在颅内后循环动脉瘤诊断及介入治疗中的应用价值。
补充资料:色散相减双单色仪
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性质:由两个单色仪组成,其光学系统为色散率抵消的装置。光辐射从入射狭缝投射到第一单色仪,其出射狭缝作为第二单色仪的入射狭缝。两个单色仪所成角度,使第二单色仪抵消第一单色仪的色散,则双单色仪光学系统色散率为零。

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