首页> 外文期刊>Radiation Protection Dosimetry >MULTIDETECTOR CT FLUOROSCOPY AND CONE-BEAM CT-GUIDED PERCUTANEOUS TRANSTHORACIC BIOPSY: COMPARISON BASED ON PATIENT DOSES
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MULTIDETECTOR CT FLUOROSCOPY AND CONE-BEAM CT-GUIDED PERCUTANEOUS TRANSTHORACIC BIOPSY: COMPARISON BASED ON PATIENT DOSES

机译:多探测器CT荧光检查和锥形束CT引导下经皮穿刺活检:基于患者剂量的比较

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摘要

In this study, two different techniques used for image-guided percutaneous transthoracic needle biopsy have been compared in terms of patient dose: computed tomography (CT) fluoroscopy (performed on a Toshiba Aquilion 64), supplied with several multidetector CT (MDCT), and cone-beam CT (CBCT) (performed on a Philips Allura Xper FD20), supplied with a few C-arm flat-panel angiographic devices. Dose data (10 patients for each technique) have been collected, and organ doses and effective dose have been evaluated using software packages enabling to simulate real acquisition geometry and X-ray exposure. As a result, higher doses were found for MDCT compared with CBCT: the effective dose is 50% higher for MDCT; ratios between mean organ doses range between 1.2 and 1.7, except for breast (0.9) and oesophagus (3.7). Even though the observed differences are not always statistically significant, the general distribution of organ doses confirms that the MDCT-guiding technique delivers higher dose than the CBCT-guided one.
机译:在这项研究中,根据患者剂量比较了两种用于图像引导的经胸经皮穿刺活检的技术:计算机断层扫描(CT)荧光检查(在Toshiba Aquilion 64上执行),配有多个多探测器CT(MDCT),以及锥形束CT(CBCT)(在Philips Allura Xper FD20上执行),配有一些C型臂平板血管造影设备。收集了剂量数据(每种技术有10名患者),并使用能够模拟实际采集几何形状和X射线曝光的软件包对器官剂量和有效剂量进行了评估。结果,与CBCT相比,发现MDCT的剂量更高:MDCT的有效剂量高50%;除乳房(0.9)和食道(3.7)外,平均器官剂量之间的比率在1.2至1.7之间。即使观察到的差异并不总是统计上显着,但器官剂量的总体分布证实,MDCT指导技术比CBCT指导的技术提供更高的剂量。

著录项

  • 来源
    《Radiation Protection Dosimetry》 |2012年第1期|p.162-165|共4页
  • 作者

    S. Strocchi; V Colli; L. Conte;

  • 作者单位

    U.O. Fisica Sanitaria, Ospedale di Circolo di Varese e Fondazione Macchi, Varese, Italy;

    U.O. Fisica Sanitaria, Ospedale di Circolo di Varese e Fondazione Macchi, Varese, Italy;

    Dipartimento di Scienze Cliniche e Biologiche, Universita degli Studi dell'Insubria, Varese, Italy;

  • 收录信息 美国《科学引文索引》(SCI);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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