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搜索结果: 1-15 共查到Magnetic resonance imaging相关记录46条 . 查询时间(0.093 秒)
磁共振成像是目前医学成像技术中功能最强大,技术门槛最复杂的技术之一。然而,相对其他成像模态较为缓慢的采集速度(较长的扫描时间)制约了磁共振成像在临床上的广泛应用。借助采样样本的数量与扫描时间的正比关系,通过减少采集的数据量(稀疏采样)来缩短磁共振采集时间是磁共振成像领域的重要途径,而从高度欠采样的数据中重建出高质量的图像可以近似为一个病态反问题,对这一问题的求解是快速磁共振成像领域的研究热点。本次...
Antiretroviral therapy has improved the prospects for people infected with HIV, but some develop a syndrome of profound body habitus and metabolic alterations that include truncal enlargement.
Osteochondritis dissecans (OCD) of the humeral head is a common cause of forelimb lameness in dogs. OCD represents the late phase of osteochondrosis (OC). Magnetic resonance imaging (MRI) is a useful ...
Magnetic resonance (MR) imaging has unparalleled soft-tissue imaging capabilities. The presence of devices such as pacemakers and implantable cardioverter/defibrillators (ICDs), however, is historical...
In present study, single quantum (SQ) and triple quantum filtered (TQF) 23Na magnetic resonance imaging (MRI) was used to monitor the severity and progression of CCl4 induced acute and chronic liver d...
This study describes a case of a six-year-old female crossbreed dog that had a three months history of progressive right thoracic limb lameness. Palpation revealed muscle atrophy of the scapular and h...
A canine patient with osteosarcoma of the sacrum was subjected to low-field magnetic resonance imaging with the following sequences: FSE, SE, 3D HYCE, X BONE, Fast STIR, GE STIR and Gradient Echo. Due...
Background: In synaesthesia, sensations in a particular modality cause additional experiences in a second, unstimulated modality (e.g., letters elicit colour). Understanding how synaesthesia is mediat...
The purpose of this work was to evaluate hydrocephalic ventricular changes using three quantitative analysis methods. The height, area and volume of the ventricles and brain were measured in 20 Yorksh...
The purposes of this study were to define the natural progression of age-related changes of the lumbar paraspinal muscles during adulthood and to investigate the influence of lifestyle and individual ...
以鸭梨为对象,采用核磁共振成像设备扫描获得轻微损伤鸭梨冠状面图像,使用Matlab软件完成图像预处理,采用自动阈值分割目标区域,并提取鸭梨层切面边界,最后采用角点检测方法检测鸭梨是否有轻微损伤。实验结果表明,核磁共振成像技术对水果轻微损伤的检测精度达92.1%,对正常和畸形水果的检测精度达100%。
Two proof-of-principle experiments towards T1-limited magnetic resonance imaging with NV cen- ters in diamond are demonstrated. First, a large number of Rabi oscillations is measured and it is demons...
Feasibility of nuclear magnetic resonance (NMR) was tested for research of anatomy and moisture content of wood. A three m high living beech tree (Fagus sylvatica L.) was imaged by magnetic resonance ...
The study of water movement in soils is of fundamental importance in hydrologic science. It is generally accepted that in most soils, water and solutes flow through unsaturated zones via preferential ...
Background: In patients with coronary artery disease (CAD), assessment of viable myocardium has important prognostic implications. The aim of this study was to compare contrast-enhanced magnetic reson...

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