Analysis is as follows:
1, Philips, GE, Siemens currently the highest-end 1.5T models are: Multiva 1.5T, Optima 360 Advanced, Aera XQ
2, of which the Philips Multiva overall hardware to software from the Design are reflected in the Philips fish and bear the bear's paw can be both the design concept and design ideas:
(1) from the platform to the coil is equipped with, and then combined with the coil to achieve the effect of growth rate (professionally known as the acceleration factor), are 16, the image signal-to-noise ratio and the scanning speed of the synchronization of the increase in the GE and Siemens do not have;
(2) the coil's design process, to ensure that the (2)The design process of the coil ensures that Multiva is optimized in terms of workflow, basically realizing "0" coil replacement and "0" distance contact between the coil and the patient's body surface, which optimizes the workflow and improves the signal-to-noise ratio of the image at the same time. (3) Multiva has the latest magnetic **** vibration fat compression technology, magic mirror, in the shortening of half the scanning time at the same time, the realization of the joint fat compression effect is also the best. In short, the overall design of the Multiva fulfills what the Chinese want, which is to be fast and good.
Expanded Information:
1. Magnetic **** vibration was discovered on the basis of solid-state microscopic quantum theory and the development of radio microwave electronics. 1945 was first observed in an aqueous solution of a paramagnetic Mn salt. *** vibrations, and in the following year the nuclear magnetic *** vibrations of protons in paraffin and water were discovered by absorption and induction, respectively; and the ferromagnetic *** vibrations of Fe, Co, and Ni flakes were discovered by waveguide resonant cavity methods.
2. The antiferromagnetic **** vibration of solid Cr2O3 was observed near room temperature in 1950. the cyclotron **** vibration of electrons and holes was observed in semiconductors silicon and germanium in 1953. the subferromagnetic **** vibration was observed both theoretically predicted and experimentally in 1953 and 1955 successively. This was followed by the discovery of static magneto-type **** vibrations (1957) and spin-wave **** vibrations (1958) of higher modes in magnetically ordered systems. the study of the phenomenon of magnetic double **** vibrations coupling the two types of magnetic **** vibrations began in 1956. Once these magnetic **** vibrations were discovered, they were widely used in basic disciplines such as physics, chemistry, and biology, and in new technologies such as microwave technology and quantum electronics.
3, such as paramagnetic solid-state quantum amplifiers, a variety of ferrite microwave devices, nuclear magnetic **** vibration spectral analysis technology and nuclear magnetic **** vibration imaging technology and the use of magnetic **** vibration method of paramagnetic crystal crystal field and energy level structure, semiconductor energy band structure and the structure of biological molecules and other research. Determination of spin and magnetic moment parameters of atomic nuclei and elementary particles is also developed on the basis of various magnetic *** vibration principles.
4, magnetic *** vibration imaging technology due to its radiation-free, high resolution advantages are widely used in clinical medicine and medical research. Some advanced equipment manufacturers and researchers together, constantly optimizing the performance of the magnetic *** vibration scanner, the development of new components. For example, the 1.5T superconducting magnetic **** vibration scanner from Siemens has neuroimaging components, vascular imaging components, cardiac imaging components, body imaging components, tumor program components, bone and joint and children's imaging components. It has the advantages of high resolution, uniform magnetic field, fast scanning speed, relatively low noise, multi-directional imaging and so on.
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