Annals of nuclear cardiology最新文献_第7页

Effects of Acquisition Matrix Size on the Accuracy and Repeatability of Parameters of Left Ventricular Function: A Phantom Study for ECG-gated Myocardial SPECT. 采集矩阵大小对左心室功能参数准确性和重复性的影响:心电图门控心肌SPECT的幻像研究。

Annals of nuclear cardiology Pub Date : 2021-01-01 DOI: 10.17996/anc.21-00140

Denis Gersdorf, Franziska Rambow, Reiner Weise, Ivayla Apostolova, Yuske Kobayashi, Jin Yamamura, Kristian Tecklenburg, Zsofia Zsebe, Susanne Klutmann, Kenichi Nakajima, Janos Mester

{"title":"Effects of Acquisition Matrix Size on the Accuracy and Repeatability of Parameters of Left Ventricular Function: A Phantom Study for ECG-gated Myocardial SPECT.","authors":"Denis Gersdorf, Franziska Rambow, Reiner Weise, Ivayla Apostolova, Yuske Kobayashi, Jin Yamamura, Kristian Tecklenburg, Zsofia Zsebe, Susanne Klutmann, Kenichi Nakajima, Janos Mester","doi":"10.17996/anc.21-00140","DOIUrl":"https://doi.org/10.17996/anc.21-00140","url":null,"abstract":"Background: The voxel size in ECG-gated myocardial SPECT (GSPECT) is a compromise between geometric resolution and count statistics with varying values and is rather inconsistent in different centers. We investigated the influence of typical acquisition matrix sizes for GSPECT on the reproducibility and accuracy of left ventricular function parameters using a dynamic heart phantom. Methods: Ten paired acquisitions, each pair with slightly different phantom positions, were obtained using identical imaging parameters except acquisition matrix: 128 × 128 matrix (3.3 mm voxel) and 64 × 64 matrix (6.6 mm voxel). In the next step, 128 × 128 data sets were compressed to an additional set of 64 × 64 matrix images. Results: Nominal value of left ventricular ejection fraction (LVEF) of the phantom was 67%. Both acquisition matrices led to significant overestimation of the LVEF. Overestimation was more pronounced in 64 × 64 than in 128 × 128 studies (79.8 ± 2.5% vs. 73.6 ± 1.4%, p<0.05). Calculated volumes were closer to the nominal values with 128 × 128 than with 64 × 64 studies. Variance showed a trend to be higher with 64 × 64 matrix, but the effect did not reach the level of statistical significance. Conclusions: LVEF overestimation and volume underestimation can be reduced by using finer matrix size without any negative effect on the reproducibility.","PeriodicalId":72228,"journal":{"name":"Annals of nuclear cardiology","volume":"7 1","pages":"43-48"},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10040942/pdf/anc-7-43.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9226928","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Selective Adenosine A2A Agonists May Change Myocardial Perfusion Imaging. 选择性腺苷A2A激动剂可能改变心肌灌注成像。

Annals of nuclear cardiology Pub Date : 2021-01-01 DOI: 10.17996/anc.21-00147

Kazuya Takehana

引用次数: 0

Nuclear Cardiology in the Post-COVID Era: What Will Be Its Legacy? 后 COVID 时代的核心脏病学：它将留下什么？

Annals of nuclear cardiology Pub Date : 2021-01-01 Epub Date: 2021-08-31 DOI: 10.17996/anc.21-00143

Takashi Kudo

{"title":"Nuclear Cardiology in the Post-COVID Era: What Will Be Its Legacy?","authors":"Takashi Kudo","doi":"10.17996/anc.21-00143","DOIUrl":"10.17996/anc.21-00143","url":null,"abstract":"The pandemic of Coronavirus disease 2019 (COVID-19) caused a substantial negative impact on patients with cardiovascular disease. The negative impact of the pandemic on daily clinical practices for cardiovascular diseases (CVD) cannot be underestimated. The CVD patients (without COVID-19 infection), whose diagnosis and treatment have been delayed or postponed by the pandemic, are victims of COVID-19. In this context, COVID-19 is a \"syndemic\" disease. Several studies already revealed that negative changes already occurred in CVD patient management, such as increased in-hospital death, supply shortage of 99mTc/99Mo generator, etc. To clarify the impact of COVID-19 on the management of CVD, a global survey named \"INCAPS-COVID\" was conducted. This study revealed a substantial reduction (around 50%) of cardiovascular imaging practice in the early stage of the pandemic during March and April 2020. This pandemic has necessitated changes in cardiovascular management practices to adopt this condition. Some of those changes will become the legacy of the pandemic. Possible legacy will be; 1) Use of telemedicine; 2) Shift from exercise to pharmacological stress; 3) Shift from single photon emission computed tomography (SPECT) to positron emission tomography (PET). By adapting and changing to the challenges caused by the COVID-19 pandemic, nuclear cardiology will survive and will rise as an improved cardiovascular practice, even after the pandemic.","PeriodicalId":72228,"journal":{"name":"Annals of nuclear cardiology","volume":"7 1","pages":"3-7"},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10040947/pdf/anc-7-3.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9219553","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Efficacy of Add-on Therapy with Carvedilol and the Direct Renin Inhibitor Aliskiren for Improving Cardiac Sympathetic Nerve Activity, Cardiac Function, Symptoms, Exercise Capacity and Brain Natriuretic Peptide in Patients with Dilated Cardiomyopathy. 卡维地洛加用直接肾素抑制剂阿利克伦改善扩张型心肌病患者心脏交感神经活动、心功能、症状、运动能力和脑利钠肽的疗效

Annals of nuclear cardiology Pub Date : 2021-01-01 DOI: 10.17996/anc.21-00139

Takuji Toyama, Shu Kasama, Yusuke Miyaishi, Hakuken Kan, Eiji Yamashita, Ren Kawaguchi, Hitoshi Adachi, Hiroshi Hoshizaki, Shigeru Ohshima

{"title":"Efficacy of Add-on Therapy with Carvedilol and the Direct Renin Inhibitor Aliskiren for Improving Cardiac Sympathetic Nerve Activity, Cardiac Function, Symptoms, Exercise Capacity and Brain Natriuretic Peptide in Patients with Dilated Cardiomyopathy.","authors":"Takuji Toyama, Shu Kasama, Yusuke Miyaishi, Hakuken Kan, Eiji Yamashita, Ren Kawaguchi, Hitoshi Adachi, Hiroshi Hoshizaki, Shigeru Ohshima","doi":"10.17996/anc.21-00139","DOIUrl":"https://doi.org/10.17996/anc.21-00139","url":null,"abstract":"Purpose/Method: Aliskiren is a direct renin inhibitor that has been reported to be effective for CHF, but the usefulness of combined therapy with carvedilol and aliskiren has not been reported. Forty-four patients with dilated cardiomyopathy (DCM) were randomized into a group receiving add-on therapy with carvedilol plus aliskiren and another group receiving carvedilol alone for 6 months. Nuclear imagings with 123I-Metaiodobenzylguanidine (MIBG) and 99mTc-Sestamibi were performed. Exercise capacity using a specific activity scale (SAS) and the New York Heart Association (NYHA) class were evaluated. Cardiac sympathetic nerve activity was evaluated by 123I-MIBG imaging, with the delayed heart-to-mediastinum activity ratio (H/M), delayed total defect score (TDS), and washout rate (WR). Results: Combined add-on therapy with carvedilol and aliskiren improved several parameters much more than carvedilol alone (p<0.05) with respect to TDS, ejection fraction (EF), NYHA, SAS on 6 months and the changes in TDS, EF, end-diastolic volume and brain natriuretic peptide (BNP). Conclusion: Add-on therapy with carvedilol and aliskiren is more effective than carvedilol alone for improving cardiac sympathetic nerve activity, cardiac function, symptoms, exercise capacity, and brain natriuretic peptide in patients with DCM.","PeriodicalId":72228,"journal":{"name":"Annals of nuclear cardiology","volume":"7 1","pages":"33-42"},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10040940/pdf/anc-7-33.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9222343","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Nuclear Cardiology: Basic and Advanced Concepts in Clinical Practice 核心脏病学:临床实践中的基本和先进概念

Annals of nuclear cardiology Pub Date : 2021-01-01 DOI: 10.1007/978-3-030-62195-7

引用次数: 5

Diagnosis of Pulmonary Embolism 肺栓塞的诊断

Annals of nuclear cardiology Pub Date : 2021-01-01 DOI: 10.1007/978-3-030-62195-7_31

B. Amorim, Marcel Yanagihara Rigolon, C. Ramos

引用次数: 1

Correlation Perspectives for the Diagnosis of Idiopathic Triglyceride Deposit Cardiomyovasculopathy. 特发性甘油三酯沉积性心肌病诊断的相关研究。

Annals of nuclear cardiology Pub Date : 2020-01-01 DOI: 10.17996/anc.20-00128

Hideyuki Miyauchi, Takashi Iimori, Keisuke Hoshi, Masayuki Ohyama, Ken-Ichi Hirano, Yoshio Kobayashi

{"title":"Correlation Perspectives for the Diagnosis of Idiopathic Triglyceride Deposit Cardiomyovasculopathy.","authors":"Hideyuki Miyauchi, Takashi Iimori, Keisuke Hoshi, Masayuki Ohyama, Ken-Ichi Hirano, Yoshio Kobayashi","doi":"10.17996/anc.20-00128","DOIUrl":"https://doi.org/10.17996/anc.20-00128","url":null,"abstract":"Background: Triglyceride (TG) deposit cardiomyovasculopathy (TGCV) is a novel cardiovascular disorder and was recently encoded as an orphan disease in Europe (ORPHA code: 565612). Defective lipolysis results in TG accumulation in the myocardium and coronary arteries in TGCV. The myocardial washout rate (WR) of iodine-123-β-methyl iodophenyl-pentadecanoic acid (BMIPP) is an essential indicator to evaluate myocardial lipolysis in vivo. TGCV is classified into primary and idiopathic type with and without PNPLA2 mutation, respectively. Here, we present the clinical correlation perspectives of TGCV patients in Chiba, Japan, to increase the awareness of this orphan disease and facilitate its diagnosis. Methods: We enrolled 234 patients who underwent BMIPP scintigraphy between September 2015 and July 2019. The diagnosis of TGCV was made based on the criteria we reported previously. Blood smear tests were performed for TGCV classification. The distributions of TGCV in each comorbidity were investigated. Results: In total, 104 patients were diagnosed with definitive idiopathic TGCV (I-TGCV). They had various comorbid conditions, including heart failure with reduced ejection fraction and multivessel coronary artery disease requiring revascularization. Moreover, the serum TG levels in I-TGCV patients were not high, and there was no correlation between serum TG level and BMIPP WR (n=205, p-value=0.31), supporting the pathophysiological hypothesis of TGCV. Conclusion: I-TGCV patients showed multiple coexistence of coronary artery disease, heart failure of unknown etiology, or diabetes mellitus. For patients with such clinical characteristics, BMIPP scintigraphy and calculation of WR should be considered proactively for the diagnosis of TGCV.","PeriodicalId":72228,"journal":{"name":"Annals of nuclear cardiology","volume":"6 1","pages":"33-38"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10133925/pdf/anc-6-33.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9398079","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Cardiac Amyloidosis: Current Diagnostic Strategies Using Multimodality Imaging. 心脏淀粉样变性:当前多模态成像诊断策略。

Annals of nuclear cardiology Pub Date : 2020-01-01 DOI: 10.17996/anc.20-00130

Kenji Fukushima, Shintaro Nakano, Ichiro Matsunari

引用次数: 0

How to Write a Successful Article. 如何写一篇成功的文章。

Annals of nuclear cardiology Pub Date : 2020-01-01 DOI: 10.17996/anc.20-00127

Ignasi Carrió

引用次数: 0

Improving Quality of Clinical Diagnosis Report with Single-Photon Emission Computed Tomography Myocardial Perfusion Imaging and Coronary Computed Tomography Angiography. 提高单光子发射计算机断层心肌灌注成像和冠状动脉计算机断层造影临床诊断报告的质量。

Annals of nuclear cardiology Pub Date : 2020-01-01 DOI: 10.17996/anc.20-00111

Rine Nakanishi, Hidenobu Hashimoto, Takanori Ikeda

引用次数: 0