west china medical publishers
Keyword
  • Title
  • Author
  • Keyword
  • Abstract
Advance search
Advance search

Search

find Keyword "磁共振波谱成像" 4 results
  • Quantification of Liver Fat Content by 1H-MR Spectroscopy Imaging at 3.0 T for Therapeutic Evaluation of Fatty LiverPreliminary Study

    ObjectiveTo investigate the feasibility of proton magnetic resonance spectroscopy (1H-MRS) imaging, by which to quantitatively analyze liver fat content for therapeutic evaluation of fatty liver at 3.0 T MRI. MethodsTwenty-six patients who diagnosed with fatty liver were examined with proton MRS at Siemens Trio Tim 3.0 T MRI before treatment and 3, 6 months after treatment, respectively. The water peak, fat peak, water peak area, and fat peak area were detected, and the relative lipid content 1 (RLC1) and relative lipid content 2 (RLC2)were calculated. Fatty liver index (FLI) was referred to the standard which was calculated from triglycerides (TG), gammaglutamyl-transferase (GGT), waist circumference, and body mass index. ResultsThere were significantly different differences of RLC1 and RLC2 among before treatment and 3, 6 months after treatment (Plt;0.05). Compared with before treatment, the RLC1 and RLC2 values significantly decreased on month 3 or 6 after treatment (Plt;0.05). There were positive correlation between RLC1 or RLC2 and FLI (r=0.476, Plt;0.00; r=0.475, Plt;0.001). The intraclass correlation coefficient was more than 0.75 before treatment, the repeatability was better. ConclusionsProton MRS can quantitatively measure liver fat content. It can be reliably used for dynamic monitoring the therapeutic effects for fatty liver. Proton MRS is accurate, and has a good clinical application in dynamically monitoring the progression of fatty liver and evaluating the therapeutic effects of various treatments.

    Release date:2016-09-08 10:45 Export PDF Favorites Scan
  • Differentiation of Chronic Mass-Forming Type Pancreatitis from Pancreatic Carcinoma by Functional Magnetic Resonance Imaging

    Objective To summarize the principle and application of functional MR imaging of pancreatic carcinoma and chronic mass-forming type pancreatitis. Methods Articles about diffusion-weighted imaging (DWI), magnetic resonance spectrum imaging (MRSI) and dynamic contrast-enhanced MR imaging of pancreatic carcinoma and chronic pancreatitis were reviewed and analyzed. Results Functional MR imaging could reflected the differences in molecules diffusion, metabolism and tissue perfusion between pancreatic carcinoma and chronic pancreatitis. Conclusion  As a non-invasive protocol, functional MR imaging can provide useful information in differential diagnosis between chronic mass-forming type pancreatitis and pancreatic carcinoma.

    Release date:2016-08-28 04:08 Export PDF Favorites Scan
  • 特发性震颤的磁共振功能成像进展

    特发性震颤(essential tremor,ET)是临床最为常见的神经系统疾病之一,以姿势性或动作性震颤为主要临床表现。磁共振功能成像(functional magnetic resonance imaging,fMRI)是 20 世纪 90 年代以来在传统的 MRI 技术的基础上迅速发展起来的一种新的成像技术。该文就 fMRI 在 ET 中的应用原理、病理生理机制、鉴别诊断以及发展前景等方面进行了综述。

    Release date:2017-05-18 01:09 Export PDF Favorites Scan
  • 多模态磁共振成像在儿童癫痫中的研究应用

    癫痫是常见的神经系统疾病,病理生理机制复杂,一部分患者难以找到病因。核磁共振成像(MRI)是癫痫诊断,尤其在癫痫灶定位方面的一项重要的影像学技术。随着功能磁共振技术(fMRI)的不断进步,在癫痫的诊治中日益突出,可以从生化微结构水平及脑网络方面探讨其发病机制,对明确病因具有重要意义,从而有助于实施个体化精准治疗,文章综述了近年来多模态 MRI 技术在癫痫领域的应用。

    Release date:2018-09-18 10:17 Export PDF Favorites Scan
1 pages Previous 1 Next

Format

Content