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首页> 外文期刊>Academic radiology >Benefits of 3D Rotational DSA Compared with 2D DSA in the Evaluation of Intracranial Aneurysm
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Benefits of 3D Rotational DSA Compared with 2D DSA in the Evaluation of Intracranial Aneurysm

机译：3D旋转DSA的优势与颅内动脉瘤评估中的2D DSA相比

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摘要

Rationale and Objectives: The aim of this study was to compare conventional two-dimensional (2D) digital subtraction angiography (DSA) with three-dimensional (3D) rotational DSA in the investigation of intracranial aneurysm in terms of detection, size measurement, neck diameter, neck delineation, and relationship with surrounding vessels. A further aim was to compare radiation dose, contrast volume, and procedural time between the two protocols. Materials and Methods: Thirty-five patients who presented with subarachnoid bleeds on computed tomography and were suspected of having intracranial aneurysms underwent conventional 2D DSA followed by 3D DSA. The 3D digital subtraction angiographic images were displayed as surface shaded display images. Aneurysm detection, sac size, neck diameter, neck delineation, and relationship of aneurysm to the surrounding vessels analyzed from the two protocols were compared. Radiation dose, contrast volume, and procedural time for both examinations were also compared. Results: Three-dimensional DSA detected 44 aneurysms in 31 patients, with negative findings seen in four patients. A false-negative detection rate of 6.8% (three of 44) for 2D DSA was noted. There was no significant difference in aneurysm size between 3D and 2D DSA. The sizes of aneurysm necks were found to be significantly larger in 3D DSA than on 2D DSA. The aneurysm neck and relationship to surrounding vessels were significantly better demonstrated on 3D DSA than on 2D DSA. Radiation dose (entrance surface dose), contrast use, and procedural time with 3D DSA were significantly less than with 2D DSA. Conclusions: Three-dimensional DSA improves the detection and delineation of intracranial aneurysms, with lower radiation dose, less contrast use, and shorter procedural time compared to 2D DSA. The size of the aneurysm neck on 3D DSA tended to be larger than on 2D DSA.
机译：理由和目标：本研究的目的是将传统的二维（2D）数字减法血管造影（DSA）与三维（3D）旋转DSA进行比较，在检测，尺寸测量，颈部直径方面调查颅内动脉瘤，颈部描绘和与周围血管的关系。进一步的目的是比较两种协议之间的辐射剂量，对比度和程序时间。材料和方法：在计算断层扫描上呈现蛛网膜下腔出血的35例患者，并怀疑颅内动脉瘤接受常规2D DSA，然后进行3D DSA。 3D数字减法血管造影图像显示为表面阴影显示图像。比较了动脉瘤检测，囊尺寸，颈部直径，颈部描绘和动脉瘤与两种方案分析的周围血管的关系。还比较了辐射剂量，对比度和两种检查的程序时间。结果：31例患者中三维DSA检测到34例动脉瘤，4例患者中看到了阴性结果。注意到2D DSA的6.8％（34个）的假阴性检出率为6.8％（34个）。 3D和2D DSA之间的动脉瘤大小没有显着差异。在3D DSA中发现动脉瘤颈部的尺寸明显大于2D DSA。在3D DSA上显着展示了与周围血管的动脉瘤颈部和关系比在2D DSA上更好。辐射剂量（入口表面剂量），对比度使用和3D DSA的程序时间明显小于2D DSA。结论：三维DSA改善了颅内动脉瘤的检测和描绘，较低的辐射剂量，比较的对比度，与2D DSA相比较短的程序时间。 3D DSA上的动脉瘤颈部的大小趋于大于2D DSA。

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  • 来源
    《Academic radiology》 |2012年第6期|共7页
  • 作者

    WongS.C.; NawawiO.; RamliN.; AbdKadirK.A.;

  • 作者单位

    Department of Biomedical Imaging University Malaya Medical Centre 59100 Kuala Lumpur Malaysia;

    Department of Biomedical Imaging University Malaya Medical Centre 59100 Kuala Lumpur Malaysia;

    Faculty of Medicine University Malaya Research Imaging Centre University Malaya Kuala Lumpur;

    Department of Biomedical Imaging University Malaya Medical Centre 59100 Kuala Lumpur Malaysia;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 放射医学;
  • 关键词

    3D DSA; Cerebral angiography; Imaging; Intracranial aneurysm;

    机译：3D DSA;脑血管造影;成像;颅内动脉瘤;

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