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Imaging Obese Patients a Weighty Task

机译：对肥胖患者进行成像是一项艰巨的任务

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Even as imaging equipment has evolved to accommodate more weight and girth and software has been refined, there are still issues with image quality and radiation dose that can hinder the ability to make accurate diagnoses."Obese patients can be difficult to image. There's an extra layer of tissue be-tween the machines and the organs of interest, so assessment may be impaired." says Martin Gunn. MBChB. associate pro-lessor of radiologv at the Universiy of Washington School of Medicine in Seattle. Poor image quality is n potential problem in all imaging modalities. "The over-hanging rule is the more tissue you have. the harder it is for ultrasound and X-ray beams to penetrate," says Raul Uppot, MD, of Harvard Medical School in Boston. In response to the obesity epidemic and the demand for imaging services, manufacturers have adapted their equipment to allow for excess load. Tables can handle more weight-some machines can withstand more than 650 pounds-and gantry openings have gotten larger to allow for wider girth. The changes, while making it possible to scan patients who once would have been impossible lo image, are not cure-alls. Not every facility, for example, is able to acquire the necessary equipment. "Hospitals that lum-n't been able to get new equipment and are still using older equipment are still stuck with older weight limits." says Leigh Shuman, MO, staff radiologist at Lancaster (Pa.) General Hospital. "We assume that because vendors have built new equipment that everyone's got it, but that's not true."
机译：即使成像设备已经发展到可以容纳更多的体重和周长，并且软件已经完善，但图像质量和辐射剂量仍然存在一些问题，可能会妨碍进行准确诊断的能力。“肥胖患者可能难以成像。机器和目标器官之间的组织层，因此评估可能会受到损害。”马丁·冈恩（Martin Gunn）说。 MBChB。西雅图华盛顿医学院的radiologv副亲出租人。在所有成像方式中，图像质量差都是一个潜在的问题。波士顿哈佛医学院的医学博士劳尔·乌普波特（Raul Uppot）表示：“悬挑法则是您拥有的组织越多。超声波和X射线束越难以穿透。”为了应对肥胖病的流行和对影像服务的需求，制造商已对其设备进行了改装，以应对超负荷的情况。桌子可以承受更大的重量，有些机器可以承受650磅以上的重量，而龙门开口也变得更大，可以容纳更宽的周长。这些变化虽然可以扫描曾经无法成像的患者，但并不是万能药。例如，并非每个设施都能获得必要的设备。 “由于无法获得新设备而仍在使用旧设备的医院仍然受到旧的体重限制。”密歇根州兰开斯特综合医院的放射线医师密尔·舒曼（Leigh Shuman）说。 “我们认为，因为供应商已经建造了每个人都拥有的新设备，但这不是事实。”

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