Imaging technology for myocardial perfusion single photon emission computed tomography 2018 in Japan
Imaging technology for myocardial perfusion single photon emission computed tomography 2018 in Japan
复制标题
2018年日本心肌灌注单光子发射计算机断层扫描成像技术
DOI：
10.1007/s11604-019-00915-2
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发表时间：
2020
影响因子：
2.1
通讯作者：
Akio Nagaki
中科院分区：
文献类型：
--
作者：
Takayuki Shibutani;Koichi Okuda;Hajime Ichikawa;Toyohiro Kato;Kenta Miwa;Hiroyuki Tsushima;Masahisa Onoguchi;Akio Nagaki
近年来，随着仪器、短期采集系统、图像重建算法和图像分析等新技术的发展，核心脏科得到了长足的发展。虽然这些创新已逐渐应用于常规检查，但我们没有研究心肌灌注单光子发射计算机断层扫描（MPS）图像采集、图像重建和图像分析的当前使用情况。我们调查了MPS成像技术在日本的现状。方法采用基于网络的问卷调查系统，以电子邮件的形式公布问卷的开启，并在网站上进行为期3个月的调查。我们收集了目前MPS与201tl和/或99mtc药物在常规方案、图像采集、图像重建和图像分析方面的使用数据。结果我们分别收到178人和174人对9900万名和201万名MPS的网络问卷的回复。应激-休息和休息-应激- MPS的常规方案在注射后1天99mtc方案的MPS分别为41.2%和14.5%，仅休息扫描的反应率为23.7%，而在注射后24 h，应激-休息MPS的反应率为65.9%，仅休息MPS的反应率为19.0%，应激-休息MPS加休息扫描的反应率为10.9%。滤波后投影（FBP）方法是最常用的图像重建方法，99mtc的MPS率为70.5%，201tl的MPS率为76.8%，其中FBP与有序子集期望最大化方法相结合。99mtc MPS对无校正（NC）图像的响应为49.2%，201tl MPS对无校正（NC）图像的响应为55.2%，其中包括NC和衰减校正（AC）和散射校正（SC）联合（即ACSC）图像的响应。30-40%的受访机构提供了99mtc和201tl的AC或ACSC图像。结论：我们调查了MPS成像技术在日本的现状，发现尽管有各种技术发展的报道，但其中一些技术尚未得到有效利用。因此，我们期望核医学技术将更有效地用于提高诊断。
AimRecently, nuclear cardiology has dramatically advanced by a new technology development such as the device, short-term acquisition system, image reconstruction algorithm and image analysis. Although these innovations have been gradually employed in routine examinations, we did not investigate the current use of image acquisition, image reconstruction, and image analysis with myocardial perfusion single-photon emission computed tomography (MPS). We investigated the current status of MPS imaging technology in Japan.MethodsWe carried out a survey using a Web-based questionnaire system, the opening of which was announced via e-mail, and it was available on a website for 3 months. We collected data on the current use of MPS with201Tl and/or99mTc agents with respect to routine protocols, image acquisition, image reconstruction, and image analysis.ResultsWe received responses to the Web-based questionnaire from 178 and 174 people for99mTc and201Tl MPS, respectively. The routine protocols of MPS of stress-rest and rest-stress MPS on 1-day protocols with99mTc were 41.2% and 14.5%, respectively, and the rest-only scan response rate was 23.7%, whereas that of201Tl MPS was 65.9% with stress-rest MPS, 19.0% with rest-only MPS, and 10.9% with stress-rest MPS adding a rest scan 24 h after injection. The filtered back projection (FBP) method is most commonly used image reconstruction method, yielding 70.5% for99mTc MPS and 76.8% for201Tl MPS, including combined FBP and ordered subset expectation maximization method. The results for no-correction (NC) images were 49.2% with99mTc MPS and 55.2% with201Tl MPS including the response of NC and combined attenuation correction (AC) and scatter correction (SC) (i.e., ACSC) images. The AC or ACSC images of99mTc and201Tl were provided by 30–40% of the institutions surveyed.ConclusionsWe investigated the current status of MPS imaging technology in Japan, and found that although the use of various technical developments has been reported, some of these technologies have not been utilized effectively. Hence, we expect that nuclear medicine technology will be used more effectively to improve diagnosis.