发布求助
文献互助 智能选刊 最新文献

The EACVI Textbook of Cardiovascular Magnetic Resonance最新文献

筛选
英文 中文
Congenital aortic disease 先天性主动脉疾病
The EACVI Textbook of Cardiovascular Magnetic Resonance Pub Date : 2018-09-01 DOI: 10.1093/MED/9780198779735.003.0053
F. Pluchinotta, V. Muthurangu
{"title":"Congenital aortic disease","authors":"F. Pluchinotta, V. Muthurangu","doi":"10.1093/MED/9780198779735.003.0053","DOIUrl":"https://doi.org/10.1093/MED/9780198779735.003.0053","url":null,"abstract":"Supravalvar aortic stenosis, aortic arch anomalies, and coarctation of the aorta are lesions involving the ascending and descending aortas, which can cause obstruction to left ventricular forward flow. In some cases, they can be associated with an anomalous borderline left ventricle. Obstructive lesions impose an increased afterload on the left ventricle and, if severe and untreated, result in hypertrophy and eventual dilatation and failure of the left ventricle. In addition, clinical manifestations of double aortic arches and other vascular rings include swallowing or respiratory symptoms due to extrinsic compression. In most cases, the anatomical diagnosis can be made from two-dimensional echocardiography. Common indications for performing cardiovascular magnetic resonance (CMR) are to refine an echocardiographic diagnosis before selecting a management plan or during follow-up to depict post-operative changes after surgical correction or catheter intervention. The goals of CMR in the assessment of patients with left-sided heart lesions are anatomical evaluation of the location, functional assessment of the haemodynamic burden, and identification of associated anomalies.","PeriodicalId":294042,"journal":{"name":"The EACVI Textbook of Cardiovascular Magnetic Resonance","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127799972","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Metastatic tumours 转移性肿瘤
The EACVI Textbook of Cardiovascular Magnetic Resonance Pub Date : 2018-09-01 DOI: 10.1093/med/9780198779735.003.0043
C. Basso, P. Buser, S. Rizzo, M. Lombardi, G. Thiene
{"title":"Metastatic tumours","authors":"C. Basso, P. Buser, S. Rizzo, M. Lombardi, G. Thiene","doi":"10.1093/med/9780198779735.003.0043","DOIUrl":"https://doi.org/10.1093/med/9780198779735.003.0043","url":null,"abstract":"At autopsy, the incidence of metastasis to the heart seems to be higher than clinically observed. In two-thirds of cases, the pericardium is involved, in about one-third of cases the epicardium and the myocardium, and in 5% of cases the endocardium. On cardiovascular magnetic resonance imaging, cardiac metastases present with features of malignant masses, variable signal characteristics, and generally (60%) enhance after contrast application.","PeriodicalId":294042,"journal":{"name":"The EACVI Textbook of Cardiovascular Magnetic Resonance","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133225228","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
CMR for transposition of the great arteries CMR检查大动脉转位
The EACVI Textbook of Cardiovascular Magnetic Resonance Pub Date : 2018-09-01 DOI: 10.1093/med/9780198779735.003.0054
S. Babu-Narayan
{"title":"CMR for transposition of the great arteries","authors":"S. Babu-Narayan","doi":"10.1093/med/9780198779735.003.0054","DOIUrl":"https://doi.org/10.1093/med/9780198779735.003.0054","url":null,"abstract":"In this chapter, a cardiovascular magnetic resonance (CMR) imaging approach to complete transposition of the great arteries after atrial redirection (Mustard or Senning operation) or arterial switch surgery is discussed, as well as the Rastelli procedure for transposition of the great arteries, ventricular septal defect, and pulmonary stenosis. Congenitally corrected transposition of the great arteries, either unoperated or following anatomical or physiological repair, is also described. In these conditions, CMR is acknowledged to have high utility, including for accurate quantification of right, as well as left, ventricular function, to enable imaging of the aorta and pulmonary arteries, baffles, and conduits, and for the identification of myocardial fibrosis. Information from CMR aids prognostication and planning of intervention.","PeriodicalId":294042,"journal":{"name":"The EACVI Textbook of Cardiovascular Magnetic Resonance","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130955415","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
7 T cardiac imaging 7 T心脏显像
The EACVI Textbook of Cardiovascular Magnetic Resonance Pub Date : 2018-09-01 DOI: 10.1093/med/9780198779735.003.0062
M. Robson
{"title":"7 T cardiac imaging","authors":"M. Robson","doi":"10.1093/med/9780198779735.003.0062","DOIUrl":"https://doi.org/10.1093/med/9780198779735.003.0062","url":null,"abstract":"By increasing the field strength of the magnet used for magnetic resonance imaging (MRI), the available signal from the patient is enhanced, and this basic physics principle has driven the clinical MRI market to ever higher field strengths. Seven Tesla (7 T) scanners yield 4-5 times more signal than 1.5 T scanners; this signal-to-noise ratio increase facilitates high-resolution imaging, faster imaging when using accelerated techniques such as SENSE and GRAPPA, and greater sensitivity to low-concentration metabolites. Magnetic resonance spectroscopy acquisitions also benefit, owing to the greater chemical shift dispersion at ultra-high field. A significant difficulty is due to the radiofrequency excitation required that oscillates at 300 MHz, which results in destructive interference of the excitation fields and heating of the patient, and hence requires expensive additional hardware. While 7 T presents a great opportunity to cardiovascular MRI research, it is not yet a routine clinical tool, owing to the compound challenges of high cost, limited availability, and the difficulties of radiofrequency excitation at 300 MHz.","PeriodicalId":294042,"journal":{"name":"The EACVI Textbook of Cardiovascular Magnetic Resonance","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130967797","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Magnetic resonance spectroscopy 磁共振波谱学
The EACVI Textbook of Cardiovascular Magnetic Resonance Pub Date : 2018-09-01 DOI: 10.1093/MED/9780198779735.003.0061
D. Tyler
{"title":"Magnetic resonance spectroscopy","authors":"D. Tyler","doi":"10.1093/MED/9780198779735.003.0061","DOIUrl":"https://doi.org/10.1093/MED/9780198779735.003.0061","url":null,"abstract":"Magnetic resonance spectroscopy (MRS) allows for the chemical nature of tissue to be investigated, opening up a novel window on the changes in metabolism and energetics that occur in the diseased heart. However, MRS suffers from a lack of sensitivity when it is compared with magnetic resonance imaging, which means that scan times are long and clinical application is limited. This chapter explores the information available from the application of proton, phosphorus, and carbon MRS in the heart and looks at the recent developments, such as ultra-high field strength MR systems and hyperpolarization methods, that are providing improved sensitivity and a new lease of life for this valuable technique.","PeriodicalId":294042,"journal":{"name":"The EACVI Textbook of Cardiovascular Magnetic Resonance","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116446445","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 7
The pulmonary circulation: assessing pulmonary arteries and pulmonary veins 肺循环:评估肺动脉和肺静脉
The EACVI Textbook of Cardiovascular Magnetic Resonance Pub Date : 2018-09-01 DOI: 10.1093/MED/9780198779735.003.0051
D. Yim, L. Grosse-Wortmann
{"title":"The pulmonary circulation: assessing pulmonary arteries and pulmonary veins","authors":"D. Yim, L. Grosse-Wortmann","doi":"10.1093/MED/9780198779735.003.0051","DOIUrl":"https://doi.org/10.1093/MED/9780198779735.003.0051","url":null,"abstract":"The pulmonary arteries and pulmonary veins can be challenging to image comprehensively with echocardiography. As a result, patients with suspected pulmonary arterial or venous abnormalities are often referred for cross-sectional imaging with cardiac magnetic resonance (CMR). In addition to providing detailed anatomic information, CMR also offers important information regarding flow distribution and flow patterns within the vessel. The haemodynamic and morphological data derived from CMR are important in decision-making and provide a roadmap for planning surgical or interventional approaches. This chapter focuses on the anatomy, pathophysiology, and imaging considerations of congenital or acquired pulmonary arterial and venous abnormalities that are commonly encountered in clinical practice.","PeriodicalId":294042,"journal":{"name":"The EACVI Textbook of Cardiovascular Magnetic Resonance","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128255832","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Spatial encoding and image reconstruction 空间编码和图像重建
The EACVI Textbook of Cardiovascular Magnetic Resonance Pub Date : 2018-09-01 DOI: 10.1093/MED/9780198779735.003.0003
S. Kozerke, R. Boubertakh, M. Miquel
{"title":"Spatial encoding and image reconstruction","authors":"S. Kozerke, R. Boubertakh, M. Miquel","doi":"10.1093/MED/9780198779735.003.0003","DOIUrl":"https://doi.org/10.1093/MED/9780198779735.003.0003","url":null,"abstract":"In order to form images with the required resolution and anatomical coverage, gradient magnetic fields are used to excite magnetization in a predefined slice or slab, with subsequent spatial encoding to obtain spatial resolution in the slice or slab. It is demonstrated how the spatial encoding principle is implemented and how it can be conceptualized using the so-called k-space representation. The relations between the field of view, spatial resolution, and k-space sampling are illustrated, along with the implementation using a simple pulse sequence. Once magnetic resonance data have been collected in k-space, the process of image reconstruction will yield the final images.","PeriodicalId":294042,"journal":{"name":"The EACVI Textbook of Cardiovascular Magnetic Resonance","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125228992","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Ebstein’s malformation of the tricuspid valve Ebstein氏三尖瓣畸形
The EACVI Textbook of Cardiovascular Magnetic Resonance Pub Date : 2018-09-01 DOI: 10.1093/MED/9780198779735.003.0052
S. Babu-Narayan
{"title":"Ebstein’s malformation of the tricuspid valve","authors":"S. Babu-Narayan","doi":"10.1093/MED/9780198779735.003.0052","DOIUrl":"https://doi.org/10.1093/MED/9780198779735.003.0052","url":null,"abstract":"Ebstein’s anomaly of the tricuspid valve is a rare congenital anomaly (1 in 200 000 live births) and is defined by the septal insertion of the tricuspid valve leaflet being >8 mm/m2 apically displaced from the septal insertion of the mitral valve leaflet. This is due to adherence of the septal leaflet to the ventricular septum secondary to failure of delamination. The inferior–posterior, and occasionally anterior, leaflet may also be displaced and rotated. The anterior leaflet is frequently part-redundant and may be fenestrated. Leaflets may be dysplastic or tethered, altering the surgical options. Ebstein’s anomaly may result in enlargement of the native and functional right atrium, enlargement of the functional right ventricle, left ventricular compression, arrhythmia, sudden death, and heart failure. Cardiovascular magnetic resonance (CMR) enables accurate quantification of right and left ventricular volumes and function, cardiac output, and cardiac shunt from measurement of Qp:Qs. CMR is highly informative regarding the anatomy and function of the tricuspid valve, in particular when the degree of displacement and/or rotation of the tricuspid valve is more than mild to moderate.","PeriodicalId":294042,"journal":{"name":"The EACVI Textbook of Cardiovascular Magnetic Resonance","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125033497","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Scan acceleration 扫描加速度
The EACVI Textbook of Cardiovascular Magnetic Resonance Pub Date : 2018-09-01 DOI: 10.1093/med/9780198779735.003.0004
S. Kozerke, R. Boubertakh, M. Miquel
{"title":"Scan acceleration","authors":"S. Kozerke, R. Boubertakh, M. Miquel","doi":"10.1093/med/9780198779735.003.0004","DOIUrl":"https://doi.org/10.1093/med/9780198779735.003.0004","url":null,"abstract":"In cardiovascular magnetic resonance imaging, scan time is of critical importance, as many applications require breath-holding to suppress respiratory-related image artefacts. In this chapter, approaches to reduce scan time, while maintaining resolution, are described. Besides partial sampling of k-space, non-Cartesian k-space trajectories are introduced, followed by an overview of data under-sampling techniques as they are implemented on clinical magnetic resonance systems. Advantages and limitations of each of these methods are briefly described.","PeriodicalId":294042,"journal":{"name":"The EACVI Textbook of Cardiovascular Magnetic Resonance","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124094050","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Transplant cardiomyopathy 移植心肌病
The EACVI Textbook of Cardiovascular Magnetic Resonance Pub Date : 2018-09-01 DOI: 10.1093/med/9780198779735.003.0029
Christopher A. Miller, J. Jordan, A. Angelini, W. Hundley, M. Schmitt
{"title":"Transplant cardiomyopathy","authors":"Christopher A. Miller, J. Jordan, A. Angelini, W. Hundley, M. Schmitt","doi":"10.1093/med/9780198779735.003.0029","DOIUrl":"https://doi.org/10.1093/med/9780198779735.003.0029","url":null,"abstract":"Heart transplant recipients present with a unique set of anatomical and pathophysiological considerations. Cardiac allograft disease often presents non-specifically, requiring a low index for further investigation. Accurate assessment with standard imaging modalities can be difficult, and cardiovascular magnetic resonance (CMR) is increasingly requested for further clarification. The anatomy of the transplanted heart, common transplant pathologies, and the role of CMR are described.","PeriodicalId":294042,"journal":{"name":"The EACVI Textbook of Cardiovascular Magnetic Resonance","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130210800","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：481959085
Book学术官方微信