Availability and quality of computed tomography and magnetic resonance imaging equipment in US emergency departments
Availability and quality of computed tomography and magnetic resonance imaging equipment in US emergency departments
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DOI：
10.1111/j.1553-2712.2008.00192.x
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发表时间：
2008-08-01
影响因子：
4.4
通讯作者：
Camargo, Carlos A., Jr.
中科院分区：
文献类型：
--
作者：
Ginde, Adit A.;Foianini, Anthony;Camargo, Carlos A., Jr.
目的：目的是确定美国急诊科（ED）计算机断层扫描（CT）和磁共振成像（MRI）设备的可用性和质量。作者假设，较小的，农村ED有较少的可用性和较低质量的equipment.Methods：这是一个随机选择的262（5%）美国ED从2005年国家急诊科库存（NEDI）-美国（http：www.emnet-usa.org）。作者致电放射科技术人员，询问CT和MRI设备的存在、艾德成像的可用性以及可用CT扫描仪的切片数量。该分析分层网站characteristics.Results：作者收集了260机构（99%的响应）的数据。在ED的随机样本中，中位年患者访视量为19，872（四分位数范围= 6，788至35，757），28%（95%置信区间[CI] = 22%至33%）为农村患者，27%（95% CI = 21%至32%）参与了危重病医院计划。249家（96%）医疗机构配备了CT扫描仪，其中235家（94%）艾德患者可全天候使用。CT扫描仪分辨率各不相同：28%有1-4层，33%有5-16层，39%有16层以上。171家（66%）机构提供现场MRI，53家（20%）机构提供移动的MRI。较小的，农村，和关键的访问医院有较低的CT和MRI的可用性和更高分辨率的CT scanners.Conclusions：虽然访问CT成像是高（> 90%），CT分辨率和访问MRI是可变的。根据观察到的差异，成像设备的可用性和质量可能因艾德大小和位置而异。
Objectives: The objective was to determine the availability and quality of computed tomography (CT) and magnetic resonance imaging (MRI) equipment in U.S. emergency departments (EDs). The authors hypothesized that smaller, rural EDs have less availability and lower-quality equipment.Methods: This was a random selection of 262 (5%) U.S. EDs from the 2005 National Emergency Department Inventories (NEDI)-USA (http://www.emnet-usa.org). The authors telephoned radiology technicians about the presence of CT and MRI equipment, availability for ED imaging, and number of slices for the available CT scanners. The analysis was stratified by site characteristics.Results: The authors collected data from 260 institutions (99% response). In this random sample of EDs, the median annual patient visit volume was 19,872 (interquartile range = 6,788 to 35,757), 28% (95% confidence interval [CI] = 22% to 33%) were rural, and 27% (95% CI = 21% to 32%) participated in the Critical Access Hospital program. CT scanners were present in 249 (96%) institutions, and of these, 235 (94%) had 24/7 access for ED patients. CT scanner resolution varied: 28% had 1-4 slice, 33% had 5-16 slice, and 39% had a more than 16 slice. On-site MRI was available for 171 (66%) institutions, and mobile MRI for 53 (20%). Smaller, rural, and critical access hospitals had lower CT and MRI availability and less access to higher-resolution CT scanners.Conclusions: Although access to CT imaging was high (> 90%), CT resolution and access to MRI were variable. Based on observed differences, the availability and quality of imaging equipment may vary by ED size and location.