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Show f Scene 77 IUNL 2 i. 19 THURSDAY. Imagery By Sound A former Preston man, who is helping to establish an Advanced imaging Methods Laboratory at the University of Utah, is working with a method of using sound waves and computer to create pictures of fluids and their movement inside an object at the U. of U. The technique offers the potential for more accurate measurements of flows in pipelines and industrial equipment as well as the possibility of picturing blood flow in human beings. The man is Dr. Steven A. Johnson of the Mayo Clinic. He is the son of Mr. and Mrs. Ren Johnson of Preston and is a graduate Trnon Hinh School Or. Johnson said the method can provide heller pictures than existing procedures. pictures IN ADDITION to producing visual images of how a fluid is flowing inside an object, the equipment also may make Additional pictures may show turbulence and mixing action. Were just getting started, Dr. John said, 'but I hope we can solve both the medical and industrial measurement pro- ot temperatures in a fluid. Dr. Johnson said. Small sending and receiving units are used to broadcast and receive sound waves (ultrasound) n -- inured. hoi" The appaient speed ol the sound waves is affect: by how fast the fluid is moving. This data is fed into a computer which creates a photograph-likpicture showing the fluid, the direction of flow, including various eddies, and the speed at which different portions of the fluid are moving. son blems." Studying sound wave images in the human body and for industry can solve The method being pursued by Dr. Johnson may approach the resolution of pictures, but without the possible high-frequen- 1 radiation damage of "We should lie able to do things cant do. he said. For example, sound waves are more discriminating between healthy and sick tissue. just show tissue. Sound waves could show a difference in tissue. he said. e TI1K DIFFERING speeds of the fluid are shown in the picture as contrasting shades of black, white and gray. The computer also adds small arrows showing the internal movements of the fluid. ULTRASOUND CANT be applied as to study the human effectively as lung, however, because the lungs are filled with air which reflects sound. Roth techniques will have to exist as partners." Dr. Johnson said of ultrasound O Sflke CACHE JUNCTION TRAINS The List Of All Rifles And Shotguns In Stock WINCHESTER - RUGER t WE BUY USED TRAINS' - REMINGTON W Taylor's - Montpelier Sill and Sanrict Cache All oMofl - Types oqon. of Tor Trains Dr. Steven A. Johnson, son of Mr. and Mrs. Ben Johnson of Preston, graduated with a doctors degree from Stanford University. OJtgliPiMsw 7524K7 and KEITH CALL, THE NEW OWNER AT FOUR SEASONS SAYS At Mayo Clinic, Dr. Johnson initiated a ... research program to build an scanner which will produce 60 pictures a second of the thorax to help in diagnosis of heart and y three-dimension- al AY QGA80UG . . . FUQ ITS LAWN & LEISURE 119 lawn care Products. Mowers Rotary re John and Dae II" NOTARY NOW 20" ROTARY NOW $11 AC00 18- - Rotary Mowers offer a unique handlebar mounting to deck and engine for a firm, controlled feel not spongy. Blade and cutting chamber provide ample suction for clean, even mowing. Optional grata bag is availabla. Safety discharge chute deflects most thrown objects. of the body," he said. The scientist is establishing the imaging lab at the U. of U. with Dr. Brent Baxter of the Computer Department. He picked the Utah school because of its computer facilities and the environment the U. of U. offers. Here I can talk with mathematicians, all kinds of people physicists, engineers and get needed apparatus built more quickly, he said. . THE ULTRASOUND technique developed at the Mayo Clinic and being studied at the U. of U. has already demonstrated in the laboratory that images of stationary of a objects can be produced with one-20t- h centimeter resolution of about one-50t-h an inch, Dr. Johnson said. It would take a lot of work to get this kind of resolution in the human body, but I think we understand the theory enough to accomplish it, he said. In Existing Structures Regardless 20-in- Off MODEL Suggested Retell $450.00 Rapco , Foamers Insulation Value For 3 Vi Inch Wall Thickness. Won't Settle like Many Competitive Products. R-- J Suggested Retell S37S.00 Hi Efficiei Seob Al Voids Without Causing Condensation, Or Absorbing Moisture. Keeps You Cool In Summer, Warm In Waiter. Rotary Tillers John Deere 695 19 Draft Free RIDER AT... Age Or Materials. RapcoFoam Insulation High Efficiency 375" 6 H.P. RIDERS STARTING one-quart- er Easily FROM 45 H.P. TRACTORS.... RIGHT DOWN TO GARDEN GLOVES. 4H.P. he said. But all existing techniques can only produce images of one-ha- lf to centimeter resolution. Here's A Few ReasonsWky Many Preston Residents Are Using Installed NOW IS THE TIME TO CHECK OUT OUR COMPLETE LINE Of JOlUl DEERE TRIM MOWER . the body, lung diseases. Ultrasound is the logical next step in producing improved images of the interior multi-disciplina- 18" many problems involving the need for more accurate information on fluid flows, he said. Theres now a tremendous upsurge of interest in using sound waves to look into Home Insulation Brian Robinson Preston 314 and Tillers prepare deep, fine seedbeds ...save hoe work. Turbo tines mix and mulch thoroughly to depth ... 1 3- - to widths. Reverse gear backs tiller from tight spots. Pressure-activate- d it and all safety clutch-rele- ase action stops. 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