Ultrasonography B to the foetus " Take a picture " Very dangerous!

Ultrasonography B to the foetus " Take a picture " Very dangerous!
World Health Organization had for a long time in order to sent out and warned; In China, most doctors of ultrasonography department are ignorant to the index change of the import equipment.The baby who gives the stomach competitively launching in some hospitals does Ultrasonography B " Take pictures and have a picture taken as a memento " ,Make VCD even, leave child knitting the brows in mother's womb first smile, become one fashion recently. Not only has attracted the masses of pregnant women also agitate the propaganda enthusiasm of many medias. But, supersound of standardized technical committee of national acoustics- Water the intersection of sound and the intersection of branch and general secretary, medical project, supersound of China, learn the intersection of birth control and professional the intersection of ox and Professor, Qi of phoenix, managing director of committee, warn parents' people: Ultrasonic danger never " Remove the alarm " ,In order to let babies avoid injuring, this kind of adventurous " has a picture taken as a memento " Had better not shine.Ox phoenix Qi the intersection of Chinese Academy of Sciences and the intersection of acoustics and researcher, engaged in medical supersound measure with standardized research for many years and regulation make work, it has been to pay close attention to all the time to clinical security outputted once. He says, has in our times, has already diagnosed the means conventionally as one kind in supersound, it is checked that even gestational period used in. It know their useful one only but a lot of people, it I wonder by dangerous one of it. In fact, World Health Organization has already proposed as far back as 1982: Only can use and diagnose the supersound to the human body while having clear reasons on medical science; Should regard commerce and experiment as object, irradiate human body, irradiate pregnant woman.There is only " three-dimension " ,There is no " four-dimension "Qi of ox phoenix Professor browse, tell reporter whether medias claim recently by a pile of relevant reports, that took pictures and used for foetuses is advanced abroad " The four-dimension " Colored Doppler's supersound, the one that has even more says it is " real-time four-dimension " . So-called " link " Mean space link degree, from the viewpoint of scientific angle, only three-dimension, what four-dimension does it store in at all. What use in medical diagnosis now pops one's head, can only obtain the two-dimentional picture which organize the section directly, it must gather many two-dimentional pictures and store then rebuilds to get the 3-D view.He analyzes, the so-called four-dimension, can be actually regarded as time the one dimension too, show that can get the 3-D view real-timely. Whether the reconstruction picture to the high frame rate is real-time at present, academia and industrial circle all disagree. Even if is real-time, it is only " real-time three-dimension " . Time and space two concept, add up two, just as household register being together and ridiculous people and cat and dog count. In fact, " four-dimension " Some trade companies are the propagation which chase the profit, doctor and responsible hospital with intuitive knowledge so as to mislead consumers, even so as to seek profit.Not always " Absolutely safe "Because of particular national conditions, public opinion stay in can use for into the gender, appraise only to care that foetus take pictures. But ox's phoenix's Qi's professor says, is breaking " humanization is served " This kind of the banner takes pictures, ones that should pay close attention to even more are to bring anything to foetus to endanger potentially. Supersonic wave is a kind of energy, have already been used for killing tumour cells and the human rubble now, exceed certain dosage (intensity and time) It is certain to cause the injury to the human body. Though a large amount of research verifies abroad, the general gynaecology and obstetrics will not cause foetus' deformity with the supersound, it proves what the supersound is checked absolutely safe but there are not precise materials so far. Especially the past ten years, because the color is exceeded, a large number of application and prominent increase of Ultrasonography B function of spectral Doppler, nearly all under the prerequisite of improving the ultra sound intensity degree, but the statistical data has not reflected yet that improve the situation for the future. Just because of this, the international ultrasonic medical circle has a ALARA principle, it is to " output information required to obtain with as low as possible " .The foetus makes whom people worried about Wen Sheng while scanning most. It is known that, are heated and caused lopsided function. German scientist finds, the foetus' skeleton is more sensitive to Wen Sheng in three months, it causes foetus' skeleton to damage to make ultrasonic review seminar at this moment. The foetus' reproduction cell and tender and lovely tissue are especially sensitive in improvement of the ultrasonic dosage, should act with caution even if do necessary checking, how in order that with " takes pictures and has a picture taken as a memento " with at all relevant medical science the hospital is Let the child take risks!A lot of doctors of ultrasonography department " Kept in the dark "Hospital solicit and propaganda of media say, take a picture for foetus use foreign advanced ultra apparatus of color. Qi of ox phoenix Professor say this to make whom people afraid most. U.S.A. FDA (food medicine administration bureau) Have implemented sound and exported special restriction by force, has offered safety assurance by manufacturer. It stipulate at body (examining from water value or) The average sound intensity of the peak value of space - time is: Ophthalmology 17mw/cm2; Foetus and others are 94mw/cm2; The peripheral blood vessel is 720mw/cm2. Last 720mw/cm2 but sound intensity since 1993, it on condition it doesn't set up by heat index in instrument or (and) The mechanical index reveals the function, utilize them in order to check on safely. But change so, the sound intensity that the foetus stands raises getting 8 fold. The more terrible one is, by IEC (International Electrotechnical Commission) It transform standard and stipulate become,space peak value - the requirements is 100mw/cm2 examining value in time water of sound intensities average, the examining value in water that and 720mw/cm2 is corresponding in the sound intensity of body is as 1500mw/cm2, it is 15 times that the standard of our country stipulates!Purpose that U.S.A. change by regulation one of that give clinical the intersection of sound and safe responsibility to the clinician from the manufacturer, choose safe and not ultra the intersection of target and output competence according to clinical difference of target by them.The others' there, this can provide the broader operation space for doctor, but become the trap full of dangers in China. Use, import a lot of the intersection of ultrasonography department and doctor that color exceed, quite at a loss to this great change after the 1993! The doctor of a ultrasonography department of famous Gynecological and Obstetric Hospital tells ox's phoenix's Qi's professor, when they check foetuses, it is " how to export to be clear ,Have never heard that depend on what index reveals. This really makes him worry for numerous future babies.Should not encourage for the foetus " Take a picture "Ox's phoenix's Qi's professor says, there are many pregnant women in U.S.A. in order to see child's face in belly too, go phenomenon that hospital take a picture at one's own expense often, U.S.A. medical ultrasonics will already for worried growth day by day of number of people their, propose, on condition that have no complication, only do an ultrasonic inspection during being pregnant. U.S.A. FDA advises the pregnant woman not to do that kind clearly too " The supersound is checked like the present " ,Claim this kind has been checked and has not been permitted. The medical circle of our country should use this as a guide and mirror, object to " taking pictures and having a picture taken as a memento " for this kind of the non- medical reason clearly Activity. Any this kind taking commerce and extra earn as purpose" Serve " Not all responsible and immoral, ought to be condemned by the public.
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