My scientist breaks through X ray phase place CT difficult problem Improve the diagnosing rate in early days of cancer

My scientist breaks through X ray phase place CT difficult problem Improve the diagnosing rate in early days of cancer
My scientist breaks through X ray phase place CT difficult problem Improve the diagnosing rate in early days of cancer
The the masses of patient wishes eagerly cancer realized to diagnose in early period, find, it is a difficult problem that the international medical circle can not capture for a long time in early days. Of our country one great break-through that researcher make a few days ago, for being apparent to improve diagnosing rate bring the dawn early period such as cancer: This achievement has overcome the medical X ray CT and employed X ray phase place to line with the obstacle of the method of one degree of formations of image, have established the foundation for forming the fast X ray phase place CT technology with higher, safer sensitivity. The expert predicts, X ray phase place CT is expected to be developed successfully over the next 5-10 years. Achievement this the intersection of radiation and laboratory unite, shut scientific research group of the formation of image study, End simultaneously with Hefei country by the intersection of Chinese University of Science and Technology and Wu ZiYu the intersection of Beijing and synchronous the intersection of radiation and device that researcher lead ,it issue periodical " American Academy of Sciences institute publication " until what has been published recently is international and authoritative Have, is praised as " X ray of the past 20 years becomes the great break-through as what was studied and made " by the responsible reader . This achievement is issued, arouse great concern from international counterpart immediately, at the tenth X ray microscopy international conference that Chicago of U.S.A. holds in mid-August of this year, Wu ZiYu researcher, the intersection of meeting and special report invitation make, obtain many of world, burn famous the intersection of X and the intersection of ray and the intersection of formation of image and high evaluation of expert, think unanimously this achievement has enormous application prospect. According to the introduction of Wu ZiYu, find X rays from roentgen (R) in more than 100 years so far, the traditional technology of formation of image of X ray based on that the sample absorbs is widely used in fields such as medical clinical diagnosis, biology, material science, information science,etc.. However, can only be (such as bone, metal) to the object of high density because of traditional technology of formation of image of X ray Get the clear picture, and (such as early tumour, blood vessel, internal organs) to the object low in density With the macromolecule material ' For instance plastics, carbon fiber,etc.) ,Can only get the fuzzy picture. Compared with it, X ray phase place developed in recent ten years lines with one degree of formations of image and has the advantage of being obvious, can get the clear picture to the biological soft tissue. It is that it is too tedious to draw the information method of phase place to hinder X ray phase place from lining with the bottleneck that one degree of formations of image popularizes and applies at present, the cycle of formation of image is too long, the ones that need are exposed the dosage too high, is not fit for the requirement of formation of image for the biomedical sample, it is difficult to combine together with the medical X ray CT technology that use extensively at present. Wu ZiYu antithetical couplet of leader shut the intersection of formation of image and the intersection of scientific research and group, aim at the intersection of X and the intersection of ray and phase place, line degrees of the intersection of formation of image and the intersection of popularization and application and this piece with with the intersection of human health and closely linked subject, utilize it in two pictures of X ray front projection and the back projection, it is the same and refracting the opposite principle of angle to absorb, put forward the research approach of solving this difficult problem. In order to verify the feasibility of this research approach, scientific research personnel successively cooperated with expert of formation of image of X ray of Switzerland's synchronous radiation light source with Japanese Tokyo University, choose the samples of mouse's joint and brain,etc. and tissue resembling, has promoted the research of a series of experiment that designs meticulously. The experimental result shows, the new method has simple and convenient, fast, low radiation dosage (radiation dosage is reduced by 50% at least) Characteristic,can medical as existing one X ray CT technology to combine together, be lasted easy and simple to handle, radiation dosage low X ray phase place CT new technology. According to the introduction of Wu ZiYu, though the theoretical question of developing X ray phase place CT apparatus has already been solved, but will overcome a great deal of difficult problems of craft and technology, especially research and develop this apparatus and require the high-level little process technology to match and may succeed, and the little process technology of our country compares with international most advanced level, certain disparity exists. "Though the difficulty exists, I succeed in developing X ray phase place CT apparatus and full of confidence to the following 5-10 years. " Wu ZiYu says.


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