標(biāo)題: Titlebook: Echo-Planar Imaging; Theory, Technique an Franz Schmitt,Michael K. Stehling,Robert Turner Book 1998 Springer-Verlag Berlin Heidelberg 1998 [打印本頁] 作者: ALLY 時間: 2025-3-21 16:56
書目名稱Echo-Planar Imaging影響因子(影響力)
書目名稱Echo-Planar Imaging影響因子(影響力)學(xué)科排名
書目名稱Echo-Planar Imaging網(wǎng)絡(luò)公開度
書目名稱Echo-Planar Imaging網(wǎng)絡(luò)公開度學(xué)科排名
書目名稱Echo-Planar Imaging被引頻次
書目名稱Echo-Planar Imaging被引頻次學(xué)科排名
書目名稱Echo-Planar Imaging年度引用
書目名稱Echo-Planar Imaging年度引用學(xué)科排名
書目名稱Echo-Planar Imaging讀者反饋
書目名稱Echo-Planar Imaging讀者反饋學(xué)科排名
作者: 拋射物 時間: 2025-3-21 23:05 作者: 沉默 時間: 2025-3-22 02:33
Echo-Planar Imaging Hardware,magnetic resonance (MR) scanner hardware. The high performance required, particularly in the generation of large rapidly switched magnetic field gradients, meant that in the past it was generally not possible to implement EPI on standard clinical imaging systems, and consequently much of the develop作者: nonplus 時間: 2025-3-22 07:45
Echo-Planar Image Reconstruction,. After a single excitation an appropriate gradient sequence encodes the magnetization repeatedly, thus filling the whole k-space. This allows, for example, the freezing of dynamic processes and the observation of these processes in real time. It has been shown that EPI can provide head and body ima作者: 逢迎春日 時間: 2025-3-22 09:48 作者: neoplasm 時間: 2025-3-22 16:03
Echo-Planar Imaging Angiography,chniques. For most conventional MRI sequences, data acquisition is still slower than many dynamic physiological processes, often yielding images plagued with motion artifacts that can obscure important information. On the other hand, EPI can ensure successful scanning of uncooperative patients and t作者: neoplasm 時間: 2025-3-22 18:39 作者: 名字的誤用 時間: 2025-3-22 21:24 作者: BIPED 時間: 2025-3-23 04:40
Abdominal Diffusion Imaging Using Echo-Planar Imaging,ibility to motion artifacts was the prime reason for conventional magnetic resonance (MR) imaging to be restricted primarily to imaging the brain. However, with the evolution of several ultrafast imaging techniques [1, 3] this restriction has been lifted. Cardiac and abdominal MR imaging have become作者: 柔聲地說 時間: 2025-3-23 08:15 作者: 打火石 時間: 2025-3-24 07:15 作者: Generic-Drug 時間: 2025-3-24 14:10 作者: 娘娘腔 時間: 2025-3-24 18:28
U. Milman,M. Alperin,R. van Raalte,S. Reisdividing that limited quantity of signal into ever smaller chunks or voxels; improvements in contrast ordinarily are made by selectively . the signal from some tissues while attempting to retain signal from others.作者: 襲擊 時間: 2025-3-24 22:46
https://doi.org/10.1007/978-981-13-9077-7ges of biomedically useful quality free of motion and almost unlimited T1- and T2-weighted contrast. The major advantage of EPI is its speed. EPI can acquire a complete set of slices in a time conventional MRI takes to acquire a single slice. This must be kept in mind when comparing EPI with other MRI techniques.作者: ACE-inhibitor 時間: 2025-3-25 02:26 作者: 食品室 時間: 2025-3-25 06:53
Zhihong Hu,Xinwen Chen,Xiulian Sunecific means of characterizing disease processes which, although ultimately based on molecular derangements, manifest themselves on a micro- and macrostructural and functional level. Thus MRI techniques geared towards elucidating these pathophysiological processes had to be developed.作者: atrophy 時間: 2025-3-25 10:59
,Modified Big Bang–Big Crunch Algorithm, development of magnetic resonance angiography (MRA), EPI angiographic techniques may be used to obtain dramatic reductions in scan time that could permit rapid screening of large vascular territories and later assessment by higher resolution MRA techniques.作者: 惹人反感 時間: 2025-3-25 14:37
Echo-Planar Imaging Angiography, development of magnetic resonance angiography (MRA), EPI angiographic techniques may be used to obtain dramatic reductions in scan time that could permit rapid screening of large vascular territories and later assessment by higher resolution MRA techniques.作者: Efflorescent 時間: 2025-3-25 16:18
Theory of Echo-Planar Imaging,dividing that limited quantity of signal into ever smaller chunks or voxels; improvements in contrast ordinarily are made by selectively . the signal from some tissues while attempting to retain signal from others.作者: plasma-cells 時間: 2025-3-25 20:18 作者: 冒失 時間: 2025-3-26 04:06 作者: 使迷醉 時間: 2025-3-26 05:25
Perfusion Imaging with Echo-Planar Imaging,ecific means of characterizing disease processes which, although ultimately based on molecular derangements, manifest themselves on a micro- and macrostructural and functional level. Thus MRI techniques geared towards elucidating these pathophysiological processes had to be developed.作者: macrophage 時間: 2025-3-26 12:01
Postmortem Conditioning of Meat,ponds a different frequency at which the spins resonate. Thus frequency analysis of the NMR signal could provide an indication of how many spins are to be found at any particular plane in space, corresponding to a given contour of the magnetic field; in short, a . of the spin density in the object.作者: Abominate 時間: 2025-3-26 15:22
Advances in Medical Engineeringl developments have made the fulfilment of EPI’s technical requirements more straightforward, and the new generation of commercial MR scanners incorporate hardware improvements which will allow the routine implementation of EPI.作者: cutlery 時間: 2025-3-26 17:52 作者: 大雨 時間: 2025-3-27 00:12 作者: archenemy 時間: 2025-3-27 04:19
Robert S Laramee,R. Daniel Bergeronil bearing rock samples, and in the biomedical field for studying laboratory animals. While submil-limeter spatial resolution is needed in both of these fields, biomedical MRI has the additional need for efficient data collection, and in many cases motion insensitivity which can be met through the use of echo-planar imaging techniques.作者: 不舒服 時間: 2025-3-27 09:11 作者: vasculitis 時間: 2025-3-27 12:16 作者: insidious 時間: 2025-3-27 16:59 作者: glisten 時間: 2025-3-27 20:13
Physiological Side Effects of Fast Gradient Switching,ers, however, report unwanted side effects [3] which are not of great concern for further research. All RF power used in MRI is converted into heat within the human tissue [4] due to the conductivity of the tissue.作者: 教義 時間: 2025-3-28 01:46 作者: 積習(xí)已深 時間: 2025-3-28 05:11
Echo-Planar Imaging on Small-Bore Systems,il bearing rock samples, and in the biomedical field for studying laboratory animals. While submil-limeter spatial resolution is needed in both of these fields, biomedical MRI has the additional need for efficient data collection, and in many cases motion insensitivity which can be met through the use of echo-planar imaging techniques.作者: 消滅 時間: 2025-3-28 06:38
Turbo Spin-Echo Imaging,the raw data needed for image formation are acquired in several consecutive passes instead of one. This segmentation has several advantages: shorter effective echo time, lower bandwidth, less T2 decay, and fewer artifacts.作者: dominant 時間: 2025-3-28 12:26 作者: Gerontology 時間: 2025-3-28 18:18
Book 1998cal challenges in implementing EPI, however, were formidable. Until the end of the 1980s few people believed that EPI would be clinically useful, since its complexity was far greater than that of "conventional" MRI methods.作者: conjunctiva 時間: 2025-3-28 21:50
medical applications of MRI to full fruition. The technological challenges in implementing EPI, however, were formidable. Until the end of the 1980s few people believed that EPI would be clinically useful, since its complexity was far greater than that of "conventional" MRI methods.978-3-642-80445-8978-3-642-80443-4作者: faculty 時間: 2025-3-29 02:52 作者: 古老 時間: 2025-3-29 05:46
Echo-Planar Magnetic Resonance Imaging of Human Brain Activation,r developing areas in fMRI: imaging platform or methodology development, contrast mechanism research, postprocessing development, and applications. In the areas of imaging platform development and contrast mechanism research, several examples demonstrating the utility of EPI are given.作者: 討厭 時間: 2025-3-29 09:47
Single Shot RARE,id spin echo (RARE) technique has as yet been installed only on a limited number of systems despite its useful clinical applications [3, 6, 7, 8, 14, 24, 25, 30, 31]. This chapter discusses the problems in generating a long echo train under the conditions of a clinical MR system and presents an over作者: 頭盔 時間: 2025-3-29 14:56 作者: 藥物 時間: 2025-3-29 16:55
https://doi.org/10.1007/978-3-540-32944-2r developing areas in fMRI: imaging platform or methodology development, contrast mechanism research, postprocessing development, and applications. In the areas of imaging platform development and contrast mechanism research, several examples demonstrating the utility of EPI are given.作者: moribund 時間: 2025-3-29 22:18 作者: 不妥協(xié) 時間: 2025-3-30 01:37 作者: Wordlist 時間: 2025-3-30 05:28
http://image.papertrans.cn/e/image/301073.jpg作者: 雜役 時間: 2025-3-30 11:04 作者: dissolution 時間: 2025-3-30 15:07 作者: TIA742 時間: 2025-3-30 18:58 作者: 有說服力 時間: 2025-3-30 21:27
Bo OuYang,Ying Dong,James J. ChouEcho-planar imaging (EPI) is more sensitive to image artifacts than conventional imaging for two basic reasons; these are (a) reversal of every second echo and (b) the long readout (RO) period.作者: 完成 時間: 2025-3-31 03:56
P. Ananda Kumar,O. M. BambawaleWith echo-planar imaging (EPI) images may be acquired in less than 1 s [98], providing many advantages relevant to clinical diagnosis. In addition to the practical virtues of faster image acquisition and reduced sensitivity to motion artifact, the technique allows investigation of physiological processes such as diffusion and perfusion.作者: 發(fā)源 時間: 2025-3-31 05:36 作者: 文藝 時間: 2025-3-31 09:27
Echo-Planar Imaging Image Artifacts,Echo-planar imaging (EPI) is more sensitive to image artifacts than conventional imaging for two basic reasons; these are (a) reversal of every second echo and (b) the long readout (RO) period.作者: Misgiving 時間: 2025-3-31 14:04 作者: Femish 時間: 2025-3-31 18:30 作者: 暫時過來 時間: 2025-3-31 21:55
Research Issues Using Echo-Planar Imaging for Functional Brain Imaging,ast 3 years become one of the most successful tools used to study blood flow and perfusion in the brain. Since changes in neuronal activity are accompanied by focal changes in cerebral blood flow (CBF), blood volume (CBV), blood oxygenation, and metabolism, these physiological changes can be used to produce functional maps of mental operations.作者: 收集 時間: 2025-4-1 05:41 作者: Blazon 時間: 2025-4-1 09:20
U. Milman,M. Alperin,R. van Raalte,S. Reish as resolution, contrast, scan time, and field of view. The total available nuclear MR signal in biological tissues is extremely small, a problem aggravated by the typical needs of the researcher or clinician for contrast and resolution. Improvements in spatial resolution, for example, necessitate 作者: Angioplasty 時間: 2025-4-1 10:33
Advances in Medical Engineeringmagnetic resonance (MR) scanner hardware. The high performance required, particularly in the generation of large rapidly switched magnetic field gradients, meant that in the past it was generally not possible to implement EPI on standard clinical imaging systems, and consequently much of the develop作者: monologue 時間: 2025-4-1 16:18
https://doi.org/10.1007/978-981-13-9077-7. After a single excitation an appropriate gradient sequence encodes the magnetization repeatedly, thus filling the whole k-space. This allows, for example, the freezing of dynamic processes and the observation of these processes in real time. It has been shown that EPI can provide head and body ima作者: eucalyptus 時間: 2025-4-1 18:33 作者: Audiometry 時間: 2025-4-2 00:51
,Modified Big Bang–Big Crunch Algorithm,chniques. For most conventional MRI sequences, data acquisition is still slower than many dynamic physiological processes, often yielding images plagued with motion artifacts that can obscure important information. On the other hand, EPI can ensure successful scanning of uncooperative patients and t作者: 好開玩笑 時間: 2025-4-2 06:37 作者: 歌曲 時間: 2025-4-2 10:11 作者: moratorium 時間: 2025-4-2 14:46
Daniel C. Jones,Iwan P. Williamsibility to motion artifacts was the prime reason for conventional magnetic resonance (MR) imaging to be restricted primarily to imaging the brain. However, with the evolution of several ultrafast imaging techniques [1, 3] this restriction has been lifted. Cardiac and abdominal MR imaging have become作者: impale 時間: 2025-4-2 19:00 作者: 聽寫 時間: 2025-4-2 20:45
