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首页> 外文期刊>Radiation Protection Dosimetry >SWALLOWING COMPUTED TOMOGRAPHY: DOSE ESTIMATION IN A PHANTOM STUDY CONDUCTED AT VARIOUS PATIENT RECLINING ANGLES
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SWALLOWING COMPUTED TOMOGRAPHY: DOSE ESTIMATION IN A PHANTOM STUDY CONDUCTED AT VARIOUS PATIENT RECLINING ANGLES

机译：吞咽计算机断层扫描：在各种患者可躺角度进行的幻影研究中的剂量估计

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摘要

Swallowing computed tomography (SCT) is a relatively new technique for the morphological and kinematic analyses of swallowing. However, no optimal scan protocols are available till date. We conducted the present SCT study to estimate the patient dose at various patient reclining positions. A RANDO phantom with a thermoluminescent dosemeter was placed on a hard Table board in a semi-reclining position at the centre and off-centre. According to predetermined scan protocols, irradiation was performed to acquire scanograms at reclining angles of 55° and 65°. The effective dose was the lowest at the centre 45° (3.8 mSv) reclining angle. Comparison between the off-centre (4.6 mSv at 55°, 6.8 mSv at 65°) and centre (4.5 mSv, 5.8 mSv) values suggested that the off-centre position is undesirable with regard to the patient dose. Accordingly, we believe that SCT methods must be revised on the basis of these factors.
机译：吞咽计算机断层扫描（SCT）是用于吞咽形态学和运动学分析的一种相对较新的技术。但是，到目前为止，还没有最佳的扫描协议。我们进行了本次SCT研究，以估计患者不同躺卧位置的剂量。将带有热致发光剂量计的RANDO体模放在硬桌板上，位于中心和偏心位置的半倾斜位置。根据预定的扫描方案，进行辐照以获取倾斜角为55°和65°的扫描图。有效剂量在中心45°（3.8 mSv）倾斜角度最低。偏心值（55°时为4.6 mSv，65°时为6.8 mSv）和中心值（4.5 mSv，5.8 mSv）之间的比较表明，就患者剂量而言，偏心位置是不理想的。因此，我们认为必须根据这些因素修改SCT方法。

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  • 来源
    《Radiation Protection Dosimetry》 |2018年第1期|87-94|共8页
  • 作者

    Masanao Kobayashi; Yasuki Asada; Kosuke Matsubara; Kazuyuki Minami; Shouichi Suzuki; Yuta Matsunaga; Tomonobu Haba; Ai Kawaguchi; Tomihiko Daioku; Hiroshi Toyama; Ryoichi Kato;

  • 作者单位

    Graduate School of Health Sciences, Fujita Health University, Toyoake, Japan;

    Graduate School of Health Sciences, Fujita Health University, Toyoake, Japan;

    Graduate School of Medical Sciences, Division of Medical Sciences, Kanazawa University, Kanazawa, Japan;

    Graduate School of Health Sciences, Fujita Health University, Toyoake, Japan;

    Graduate School of Health Sciences, Fujita Health University, Toyoake, Japan;

    Department of Imaging, Nagoya Kyoritsu Hospital, Nagoya, Japan;

    Department of Radiology, Fujita Health University Hospital, Tokoake, Japan;

    Department of Radiology, Toyota Memorial Hospital, Toyota, Japan;

    Department of Nursing, Sugiyama Jogakuen University, Nissin, Japan;

    Department of Radiology, Fujita Health University School of Medicine, Toyoake, Japan;

    Graduate School of Health Sciences, Fujita Health University, Toyoake, Japan;

  • 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
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