Research on the cost-effect relationship of imaging diagnostic modalities by using new medico-economic techniques

MRI和CT技术的显著发展提高了诊断的准确性，为患者的福祉做出了巨大贡献。然而，这些新的诊断方式很昂贵，也是造成医疗费用增加的部分原因。使用这些新的成像诊断模式所获得的好处和接受这些模式检查的患者的意愿没有反映在关于医疗费用的辩论中。在我们之前关于补助金的研究中，我们澄清了MRI在妇科疾病中具有极好的成本-效果关系。在本研究中，通过对疾病的概括和分析方法进行评价。我们检查了有无核磁共振、CT和对比增强对卵巢癌和子宫体癌诊断的准确性，计算了包括检查费用在内的总医疗费用，并分析了…中各种成像方式的成本-效果关系每一种疾病都会更多。此外，还假设了一个假想的市场，通过询问受试者是否愿意为其提供的好处付费，来估计昂贵但安全准确的检查或检查药物的额外价值。在卵巢癌和子宫体癌中，增加MRI和增加对比剂增强可以提高诊断准确率，减少总医疗费用。另一方面，对于宫颈癌，建议增加MRI以减少总的医疗费用，但增加对比剂增强则增加了总的医疗费用。其次，用假想市场法比较了一种安全但价格昂贵的非离子造影剂和一种可能引起不良反应但价格低廉的离子造影剂。因此，目前的药品价格差异被发现在患者愿意容忍的范围内，作为额外价值的成本。我们计划通过使用新的医疗经济学技术来继续研究成像诊断模式的成本-效果关系，包括评估患者在放弃给定服务时愿意接受的最低金额(接受意愿法)以及支付意愿法。较少

Remarkable developments of MRI and CT techniques have led to improvements in the diagnostic accuracy and contributed greatly to the welfare of patients. However, these new diagnostic modalities are expensive and have been partly responsible for the increase in the medical expenditure. The benefit obtained by the use of these new imaging diagnostic modalities and the will of the patients examined by these modalities are not reflected in the debate concerning the medical expenditure. In our previous study conducted on a Grant-in-Aid, we clarified that MRI has an excellent cost-effect relation in gynecological disorders. in the present study, evaluation was made by generalizing the disease and analytical method. We examined the accuracy of the diagnoses of ovarian cancer and cancer of the uterine body with and without MRI, CT, and contrast enhancement, calculated the total medical cost including the cost for examinations, and analyzed the cost-effect relations of the imaging modalities in … More each disorder. Also, an imaginary market was postulated, and how much additional value there is to an expensive but safe and accurate examination or examination drug was estimated by asking the subjects about their willingness to pay for the benefit it provides.In ovarian cancer and cancer of the uterine body, the addition of MRI and the addition of a contrast enhancement were shown to improve the diagnostic accuracy and reduce the total medical expenditure. In cancer of the uterine cervix, on the other hand, the addition of MRI was suggested to reduce the total medical expenditure, but the addition of contrast enhancement increased it. Next, a safe but expensive non-ionic contrast medium and an ionic contrast medium, which is likely to cause adverse effects but is cheap, were compared by the imaginary market method. As a result, the present difference in the drug price was found to be within the range that patients are willing to tolerate as a cost for additional values.We are planning to continue our research on the cost-effect relationship of imaging diagnostic modalities by using new medico-economic techniques including the evaluation of the minimum amount of money that the patients are willing to accept when they give up a given service (willingness-to-accept method) as well as the willingness-to-pay method. Less