146. Cine imaging by low-field MR equipment
نویسندگان
چکیده
منابع مشابه
Vector Field Analysis of the Dynamics of the Heartusing Velocity Encoded Cine MR Imaging
Understanding of the dynamics of the heart is required for the prevention and treatment of cardiac related diseases as well as for the design of pacemakers and artiicial hearts. We present a new method for the analysis of myocardium motion and deformation based on the study of velocity encoded NMR images. By applying a few mathematical operators on the semi{automatically segmented image of the ...
متن کاملVisualization of the pulmonary valve using cine MR imaging.
PURPOSE To evaluate the capability of bright-blood cine MR to directly visualize the leaflets of the valve replacement in pulmonary position following Ross operation. MATERIAL AND METHODS Long and short axis views of the pulmonary valve were obtained in 10 normal subjects and 14 patients after Ross operation. Valve morphology and function were analyzed and signal-to-noise (SNR) and contrast-t...
متن کاملAccelerating cine-MR Imaging in Mouse Hearts Using Compressed Sensing
PURPOSE To combine global cardiac function imaging with compressed sensing (CS) in order to reduce scan time and to validate this technique in normal mouse hearts and in a murine model of chronic myocardial infarction. MATERIALS AND METHODS To determine the maximally achievable acceleration factor, fully acquired cine data, obtained in sham and chronically infarcted (MI) mouse hearts were 2-4...
متن کاملChanges of Cortisol and Glucose Concentrations in Rats Exposed to MR Imaging Field
Background: MR imaging is one of the best diagnostic modalities in medicine. During an MR imaging examination, three types of field are employed to produce images. Various experimental studies have been performed about the effects of each single type of field but only few studies are available on their combination to generate MR imaging. The main objective of this research work is to study the ...
متن کاملNormal and Abnormal Cerebrospinal Fluid Dynamics Evaluated by Optimized Cine Phase-contrast MR Imaging
The NPH group could be further divided into hyperand hypodynamic groups when compared with the normal agematched subjects. Vmax of the control group was significantly higher than that of the hypodynamic-NPH group (1.92 ± 1.11 cm/s, p < 0.001) and lower than that of the CH group (p < 0.007) and of the hyperdynamicNPH group (10.52 ± 0.23 cm/s, p < 0.001). With optimized parametric setting, two-di...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Japanese Journal of Radiological Technology
سال: 1990
ISSN: 0369-4305,1881-4883
DOI: 10.6009/jjrt.kj00003322271