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首页> 外文期刊>American Journal of Neuroradiology >Use Trends and Geographic Variation in Neuroimaging: Nationwide Medicare Data for 1993 and 1998
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Use Trends and Geographic Variation in Neuroimaging: Nationwide Medicare Data for 1993 and 1998

机译：神经影像学的使用趋势和地理变化：1993年和1998年全国医疗保险数据

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BACKGROUND AND PURPOSE: Powerful tools, including CT and MR imaging, have revolutionized neuroimaging. These are routinely used, but the extent and variation of use has not been studied. Our purposes were to determine the use rates of MR imaging and CT (of spine, brain, or head and neck), myelography, conventional angiography, and MR angiography in diagnosing neurologic disorders; to study trends in use; and to determine regional variations in use. METHODS: We used the National Part B Medicare Database for 1993 and 1998 to compare rates of use for these procedures in 10 geographic regions. RESULTS: In 1993 and 1998, respectively, 13,897 and 19,431 (39.8% increase) neuroimaging procedures were performed per 100,000 Medicare beneficiaries nationwide. Use of brain or head and neck CT (30.4%) and MR imaging (43.6%), spinal CT (3.5%) and MR imaging (83.0%), myelography (56.6%), and conventional angiography (24.3%) increased in 1998 versus 1993. Increases in MR angiography were not assessed, because this procedure was not reimbursable in 1993. Regional use of brain or head and neck and spinal CT and MR studies varied considerably; ratios of highest and lowest rates were 1.38–1.56. Use of MR angiography, myelography, and conventional angiography varied three- to fourfold. CONCLUSION: Use of MR and CT studies of the brain or head and neck and of the spine increased considerably in the Medicare population between 1993 and 1998. Use of conventional invasive procedures such as myelography and angiography increased strikingly, contrary to the expected decline. Regional use varied substantially.
机译：背景与目的：强大的工具，包括CT和MR 成像，已经彻底改变了神经成像技术。这些通常是 使用的，但尚未研究使用的范围和变化。 我们的目的是确定MR成像和 的使用率CT（脊柱，脑或头颈），脊髓造影，常规 血管造影和MR血管造影在诊断神经系统疾病方面的研究； 以研究使用趋势；并确定使用中的区域差异。方法：我们使用了1993年 和1998年国家B部分医疗保险数据库来比较这些药物的使用率结果：在1993年和1998年，分别在10 地理区域进行了神经成像。每10万次执行了13,897和19,431次（增加了39.8％ ）。全国的 Medicare受益人。使用大脑或头部和 颈部CT（30.4％）和MR成像（43.6％），脊柱CT（3.5％）和 MR成像（83.0％），脊髓造影（与1993年相比，在1998年增加了56.6％），而常规血管造影 （24.3％）有所增加。由于这种方法无法补偿 ，所以未评估MR血管造影的增加。 sup> 1993年。大脑或头颈部和脊柱CT 和MR研究的区域使用差异很大；最高和最低 比率之比为1.38–1.56。 MR血管造影，脊髓造影， 和常规血管造影的使用范围是三到四倍。 结论：脑或头部和 人群的>颈部和脊柱显着增加。使用常规的侵入性 程序（如脊髓造影和血管造影）显着增加，与预期的下降相反。区域使用差异很大。

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    《American Journal of Neuroradiology》 |2001年第9期|1643-1649|共7页
  • 作者

    Vijay M. Rao; Laurence Parker; David C. Levin; Jonathan Sunshine; Gerald Bushee;

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    From the Department of Radiology (V.M.R., L.P., D.C.L.), Thomas Jefferson University Hospital, Philadelphia, PA and the American College of Radiology (J.S., G.B.), Reston, VA.;

    From the Department of Radiology (V.M.R., L.P., D.C.L.), Thomas Jefferson University Hospital, Philadelphia, PA and the American College of Radiology (J.S., G.B.), Reston, VA.;

    From the Department of Radiology (V.M.R., L.P., D.C.L.), Thomas Jefferson University Hospital, Philadelphia, PA and the American College of Radiology (J.S., G.B.), Reston, VA.;

    From the Department of Radiology (V.M.R., L.P., D.C.L.), Thomas Jefferson University Hospital, Philadelphia, PA and the American College of Radiology (J.S., G.B.), Reston, VA.;

    From the Department of Radiology (V.M.R., L.P., D.C.L.), Thomas Jefferson University Hospital, Philadelphia, PA and the American College of Radiology (J.S., G.B.), Reston, VA.;

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