LOW-DOSE CT OF THE LUNGS - PRELIMINARY-OBSERVATIONS
LOW-DOSE CT OF THE LUNGS - PRELIMINARY-OBSERVATIONS
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DOI：
10.1148/radiology.175.3.2343122
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发表时间：
1990-06-01
期刊：
影响因子：
19.7
通讯作者：
MCCAULEY, DI
中科院分区：
文献类型：
--
作者：
NAIDICH, DP;MARSHALL, CH;MCCAULEY, DI
在2例肺部外观正常的患者和10例具有广泛多样性的潜在实质异常的患者中，对肺部低剂量计算机断层扫描（CT）的潜力进行了严格评价。在五个水平中的每一个，除了在120 kVp和140 mA下获得的常规扫描外，还获得了10 mA下的扫描和10 mA下的半扫描，所有其他参数保持不变。对每次扫描进行目视评估，以评估解剖结构、龋齿以及伪影的存在和颗粒度的程度。在胸腔的所有水平，实质结构的可视化不受毫安电流降低的影响。似乎可以用非常低的辐射剂量获得高质量的肺部诊断图像。虽然还需要进一步的评估，但低剂量CT在儿科人群中的应用潜力以及在肺癌高危患者中的筛查潜力是显而易见的。
The potential of low-dose computed tomography (CT) of the lungs was critically evaluated in two patients with normal-appearing lungs and 10 patients with a wide diversity of underlying parenchymal abnormalities. At each of five levels, in addition to routine scans obtained at 120 kVp and 140 mA, a scan at 10 mA and a half scan at 10 mA were obtained, with all other parameters held constant. Each scan was evaluated visually to assess anatomic, carity as well as the presence of artifacts and the extent of graininess. At all levels of the thorax, visualization of parenchymal structures was not affected by decreasing the milliamperage. It appears that high-quality, diagnostic images of the lung can be obtained with a very low radiation dose. Although further evaluation is necessary, the potential of low-dose CT for use in the pediatric population in particular, as well as for screening in patients at high risk for developing lung cancer, is apparent.