搜索结果: 1-15 共查到“Magnetic resonance imaging”相关记录46条 . 查询时间(0.151 秒)
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Fast Magnetic Resonance Imaging and Inverse Problems
快速 磁共振成像 逆问题
2023/4/17
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...
Fat distribution in HIV-infected patients reporting truncal enlargement quantified by whole-body magnetic resonance imaging
Adipose tissue regional fat distribution nutrition assessment
2016/5/31
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.
Magnetic resonance imaging:findings of osteochondrosis like-lesions in glenoid fossa and proximal humeral metaphyses in a dog:a case report
magnetic resonance imaging (MRI) osteochondritis dissecans (OCD) shoulder dog
2015/8/14
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 Imaging in patients with ICDs and Pacemakers
Imaging MRI safety pacemaker ICD
2015/7/31
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...
NONINVASIVE MONITORING OF CCl4 INDUCED ACUTE AND CHRONIC LIVER DAMAGE IN RAT BY SINGLE QUANTUM AND TRIPLE QUANTUM FILTERED 23Na MAGNETIC RESONANCE IMAGING
liver damage carbon tetrachloride rat model
2015/5/22
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...
Diagnosis of a brachial plexus tumour using magnetic resonance imaging assisted by fine-needle aspiration biopsy in a dog: a case report
magnetic resonance imaging brachial plexus tumour fine needle biopsy dog
2015/4/17
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...
Magnetic resonance imaging of a sacral bone with telangiectatic osteosarcoma in a dog: a case report
MRI osteosarcoma dog spine
2015/4/16
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...
Synaesthetic Colour in the Brain: Beyond Colour Areas. A Functional Magnetic Resonance Imaging Study of Synaesthetes and Matched Controls
Brain Beyond Colour Areas A Functional Magnetic Resonance Synaesthetes Matched Controls
2015/4/9
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...
Quantitative analysis of hydrocephalic ventricular alterations in Yorkshire terriers using magnetic resonance imaging
hydrocephalus ventricles magnetic resonance imaging
2015/4/8
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...
Paraspinal Muscle Morphology and Composition: A 15-yr Longitudinal Magnetic Resonance Imaging Study
MULTIFIDUS ERECTOR SPINAE MRI CROSS-SECTIONAL AREA PHYSICAL ACTIVITY AGING
2017/5/19
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 ...
基于核磁共振成像的水果轻微损伤识别（Detecting Subtle Bruises on Fruits with Nuclear Magnetic Resonance Imaging）
鸭梨 核磁共振成像 无损检测 角点检测
2010/12/29
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%。
Towards T1-limited magnetic resonance imaging using Rabi beats
T1-limited magnetic resonance imaging Rabi beats
2010/10/18
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...
APPLICATION OF MAGNETIC RESONANCE IMAGING FOR RESEARCH OF ANATOMY AND MOISTURE CONTENT OF WOOD
MR microscopy beech Fagus sylvatica living wood wood anatomy moisture content
2009/11/26
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 ...
Characterizing water fingering phenomena in soils using magnetic resonance imaging and multifractal theory
water fingering phenomena magnetic resonance imaging multifractal theory
2009/10/30
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 ...
Assessment of Myocardial Viability with Contrast-enhanced Magnetic Resonance Imaging and Technetium Scintigraphy
Magnetic resonance imaging Single photon emission computed tomography Myocardial viability
2015/9/18
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...