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A QUALITY CONTROL PROGRAMME FOR MEDICAL X-RAY FILMS IN INDIA

机译：印度医用X射线胶片的质量控制程序

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摘要

Medical X-ray films are continued to be the major image receptors in diagnostic radiology in India. About 9×10~6 m~2 of medical X-ray films are used per annum for diagnostic imaging in India, and its magnitude may further increase as the number of diagnostic X-ray units is increasing rapidly. A national quality control programme was initiated for testing the medical X-ray films of various suppliers/manufacturers so that optimum quality film can only be used in diagnostic radiography examinations. X-ray laboratory of Radiological Physics and Advisory Division, Bhabha Atomic Research Centre was recognised as national film testing laboratory. A dedicated test phantom was fabricated as per the prescription of International Organization for Standardization (ISO 9236-1, 1996), simulating the attenuation and scatter properties of chest of an average patient for periodic X-ray sensitometric evaluations of the medical X-ray films. The basic fog, speed, latitude, maximum optical density, uniformity and artefacts of all the films tested so far were found well within the requirements specified in the national standards. The average gradient for a few blue and green sensitive films were found less than the specified value. Suppliers/manufacturers of such films were advised to improve the performance quality of their films.
机译：在印度，医学X射线胶片仍然是诊断放射学中的主要图像受体。在印度，每年大约需要使用9×10〜6 m〜2片医用X射线胶片进行诊断成像，并且随着诊断X射线单位数量的迅速增加，其数量可能会进一步增加。发起了一项国家质量控制计划，以测试各种供应商/制造商的医用X射线胶片，以使最佳质量的胶片只能用于放射诊断X线检查。 Bhabha原子研究中心放射物理和咨询部门的X射线实验室被公认为国家电影检测实验室。根据国际标准化组织（ISO 9236-1，1996）的规定制造了专用的测试体模，模拟了普通患者胸部的衰减和散射特性，以便对医用X射线胶片进行定期X射线感光度评估。到目前为止，所有已测试薄膜的基本雾度，速度，纬度，最大光学密度，均匀度和伪像均符合国家标准规定的要求。发现一些蓝绿色敏感胶片的平均梯度小于指定值。建议此类薄膜的供应商/制造商提高其薄膜的性能。

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  • 来源
    《Radiation Protection Dosimetry》 |2012年第1期|p.51-57|共7页
  • 作者

    Reena Sharma; Sunil Dutt Sharma;

  • 作者单位

    Radiological Physics & Advisory Division, Bhabha Atomic Research Centre, CT & CRS, Anushaktinagar,Mumbai 400094, India;

    Radiological Physics & Advisory Division, Bhabha Atomic Research Centre, CT & CRS, Anushaktinagar,Mumbai 400094, India;

  • 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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