Bioacoustics Research Lab
University of Illinois at Urbana-Champaign | Department of Electrical and Computer Engineering | Department of Bioengineering
Department of Statistics | Coordinated Science Laboratory | Beckman Institute | Food Science and Human Nutrition | Division of Nutritional Sciences | College of Engineering
 Thursday, March 28th, 2024
BRL Home
About BRL
Publications
Projects
People
History
Facilities
Abstracts Database
Seminars
Downloads
Archives
Bioengineering Research Partnership
William D. O'Brien, Jr. publications:

Michael L. Oelze publications:

Aiguo Han publications:

BRL Abstracts Database

Search - a quick way to search the entire Abstracts Database.
 
Advanced Search - search specific fields within the Abstracts Database.
Title
Author
Journal
Volume
Year
Abstract Text
Sort by:     Title     Author     Journal     Year
Number of records to return:     10     20     30     50

Your search for ultrasound produced 3296 results.

Page 299 out of 330

Title Ultrasonically induced lung hemorrhage in young swine.
Author Dalecki D, Child SZ, Raeman CH, Cox C, Carstensen EL.
Journal Ultrasound Med Biol
Volume
Year 1997
Abstract Ten-day old swine were used in the final step of a study of the age dependence of.the threshold for lung hemorrhage resulting from exposure to diagnostically.relevant levels of pulsed ultrasound. A 2.3-MHz focused transducer (pulse length.of 10 microseconds, 100-Hz pulse repetition frequency) was incremented.vertically at several sites for a distance of 2 or 2.5 cm over the chest of the subject.for a total exposure period of 16 or 20 min. The procedure was repeated at a total.of four sites per animal. Animals were euthanized and lungs were scored by.visual inspection for numbers and areas of gross hemorrhages. The threshold.level for hemorrhage was approximately 1.3-MPa peak positive pressure in water.and the surface of the animal or, at the surface of the lung, 0.8-MPa peak positive.pressure, 0.8-MPa fundamental pressure, 0.7-MPa maximum negative pressure.and 20 Wcm-2 pulse average intensity. These values are essentially the same as.those reported previously for neonatal swine, and neonatal, juvenile and adult.mice.


Title Ultrasonically induced morphological changes in the mammalian neonatal spinal cord.
Author Borrelli MJ, Frizzell LA, Dunn F.
Journal Ultrasound Med Biol
Volume
Year 1986
Abstract Light and electron microscopy were employed to examine ultrasonically irradiated murine neonate spinal cords. Spinal cord damage was always associated with functional changes, i.e. hind limb paralysis, and was never apparent in initially paralyzed specimens which had recovered function. Damage occurred preferentially at the periphery of the spinal cord and on the ventral side, though the ultrasound was incident on the dorsal side. The distribution of the damage suggests spinal column involvement and nonthermal effects that are enhanced by temperature elevation.


Title Ultrasonically induced morphological damage to mouse ovaries.
Author Bailey KI, O'Brien WD Jr, Dunn F.
Journal Ultrasound Med Biol
Volume
Year 1983
Abstract Mouse ovaries were exposed in vivo to 1 MHz continuous wave ultrasonic energy at spatial peak intensities ranging from 5 to 100 W/cm2 for times varying from 300 to 15 s depending on the intensity. Following exposure the ovaries were surgically removed at times ranging from immediately (within 60 s) to 7 days and prepared histologically for light microscopic analysis. The observed tissue alterations varied from severe, at the higher intensities to subtle, at the lower intensities. Lesions were manifested by pyknosis of cells, vacuolization of cells and tissue, eosinophilic cytoplasm, and general cellular disruption. Subtle alterations showed large numbers of polyovular follicles and increases in the amount of PAS positive material in the interstitial tissue. Various ovarian structures showed differing sensitivities to the insult with luteinized structures being preferentially altered.


Title Ultrasonically induced nuclear aberrations.in an in vitro multicellular tumour system.
Author Sacks PG, Miller MW.
Journal Br J Radiol
Volume
Year 1982
Abstract Chinese hamster V-79 cells, attached to an acoustically transparent membrane.and EMT6/Ro mouse mammary sarcoma cells as small multicellular spheroids.or in suspension, were exposed to therapeutic intensities of 1 MHz ultrasound.(0-10 W/cm2) and examined for the production of atypical nuclear or.chromosomal aberrations. In the monolayer configuration no abnormalities.occurred. In multicell spheroids or suspension cells 3 classes of abnormalities.were found: (1) pyknotic/irregular nuclei; (2) lysed nuclei with extruding.nucleoplasm; and (3) agglomerations which have an irregular shape and."fused" morphology similar to that which has been reported for plant tissues.(Cataldo et al, 1973).


Title Ultrasonically induced temperature elevation in mouse ovary.
Author Bailey KI, O'Brien WD Jr, Dunn F.
Journal Ultrasound Med Biol
Volume
Year 1984
Abstract Temperature increases, resulting from exposure to 1 MHz ultrasound, were measured in in situ and in exteriorized mouse ovaries. It is concluded that temperature increases from exposure to 10 W/cm2 and less are probably not significant for producing ovarian tissue damage, but that 25 W/cm2 exposures, and greater, are of such magnitude that damaging thermal levels ensue. The significance of blood flow in removing ultrasonically generated heat has been observed quantitatively. Published erratum appears in Ultrasound Med Biol 1987 Jan;13(1):L29.


Title Ultrasonically produced changes in the blood-brain barrier.
Author Bakay L, Hueter TF, Ballantine HT Jr, Sosa D
Journal AMA Arch Neurol Psychiat
Volume
Year 1956
Abstract It has been demonstrated in recent years that focused ultrasound of frequencies ranging from 0.9 to 2.5 megacycles (mc), and at intensities of from 200 to 1500 watts per square centimeter, may be used to produce circumscribed small lesions in the central nervous system. Histological examination of the tissue damaged by focused ultrasound does not reveal the mechanism of destruction, although the morphological appearance of ultrasonic lesions differs specifically from other types of lesions. A cardinal point in understanding the effect of ultrasound on central nervous tissue is knowledge of the reaction of the cerebral capillaries to this type of injury. Both the absence of gross hemorrhage and the existence of edema have been reported by some investigators. Thus, the extent of capillary damage and its possible role in the development of a lesion are important from the point of view of the physiological effect of ultrasound. For this reason a general investigation of the changes in the blood-brain barrier produced by focused ultrasound has been undertaken.


Title Ultrasonics in food engineering. Part I: Introduction and experimental methods.
Author Povey MH, McClements DJ
Journal J Food Eng
Volume
Year 1989
Abstract The basic ideas underlying the use of ultrasound in non-destructive testing are reviewed with a special emphasis on their relevance to food engineering. Sound velocity is a valuable engineering tool because of its relative ease of measurement, ease of interpretation of the consequent data, and its greater accuracy than attenuation measurements. It is a non-destructive, non-invasive, non-intrusive technique. Low-intensity applications are reviewed and their potential in the measurement of physical properties is emphasised. Such measurements include the determination of adiabatic compressibility, rigidity, and, in two-phase systems, particle size and dispersed-phase volume fraction. Experimental techniques which the authors have found useful for measurements in food systems are described and the accuracy of available techniques is compared.


Title Ultrasonics in medicine.
Author Newell JA, Phil D.
Journal Phys Med Biol
Volume
Year 1963
Abstract Ultrasonics has been used in medicine for about a decade. Progress in the subject is reviewed and discussed, particular stress being laid on physical aspects. The physics of ultrasonic fields, and their production and measurement, are briefly described. The main part of the review gives a critical description of the use of high intensity ultrasound for making lesions, and the use of low intensity ultrasound for diagnosis. Progress in the treatment of Meniere?s and Parkinson?s disease is described in some detail as well as the diagnostic work done on various sites of the body-brain, heart, eye, and others. Physical aspects of ultrasonics in diagnosis are considered, especially the attainable resolution and its dependence on absorption coefficient and depth of tissue. The question of hazard in diagnosis is also discussed. Ultrasonics has already proved to be of great value in medicine and suggestions are made about the directions of its future development.


Title Ultrasonics international.
Author Victor AE, Waynick AH.
Journal Rep Dept Navy Off Nav Res
Volume
Year 1973
Abstract A report on the meeting "Ultrasonics International - 1973" held in London, England, March 27 - 29, 1973. The meeting covered current information on the latest developments and industrial applications in ultrasound research and technology. This including the topics of: high-power, metal forming, holography, physics, underwater transducers, surface waves, non-destructive testing and medical ultrasonics.


Title Ultrasonography of the knee.
Author Richardson ML, Selby B, Montana MA, Mack LA.
Journal Radiol Clin North Am
Volume
Year 1988
Abstract Sonography is a useful modality in the diagnosis of a wide variety of knee disorders, including lesions of the articular cartilage, tendons and ligaments, menisci, synovial space, and adjacent vessels and muscles. Sonography is noninvasive, rapidly performed, widely available, readily accepted by patients, uses no ionizing radiation, and is relatively inexpensive compared to other conventional imaging studies of the menisci, making it a potentially attractive screening examination for knee injuries. Although it is difficult to state the exact place of sonography in the diagnostic workup of knee disorders, we feel that sonography is vastly underutilized. With additional refinements in ultrasound technology and scanning techniques, we expect further expansion of its role in the evaluation of the knee.


Page 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | 40 | 41 | 42 | 43 | 44 | 45 | 46 | 47 | 48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57 | 58 | 59 | 60 | 61 | 62 | 63 | 64 | 65 | 66 | 67 | 68 | 69 | 70 | 71 | 72 | 73 | 74 | 75 | 76 | 77 | 78 | 79 | 80 | 81 | 82 | 83 | 84 | 85 | 86 | 87 | 88 | 89 | 90 | 91 | 92 | 93 | 94 | 95 | 96 | 97 | 98 | 99 | 100 | 101 | 102 | 103 | 104 | 105 | 106 | 107 | 108 | 109 | 110 | 111 | 112 | 113 | 114 | 115 | 116 | 117 | 118 | 119 | 120 | 121 | 122 | 123 | 124 | 125 | 126 | 127 | 128 | 129 | 130 | 131 | 132 | 133 | 134 | 135 | 136 | 137 | 138 | 139 | 140 | 141 | 142 | 143 | 144 | 145 | 146 | 147 | 148 | 149 | 150 | 151 | 152 | 153 | 154 | 155 | 156 | 157 | 158 | 159 | 160 | 161 | 162 | 163 | 164 | 165 | 166 | 167 | 168 | 169 | 170 | 171 | 172 | 173 | 174 | 175 | 176 | 177 | 178 | 179 | 180 | 181 | 182 | 183 | 184 | 185 | 186 | 187 | 188 | 189 | 190 | 191 | 192 | 193 | 194 | 195 | 196 | 197 | 198 | 199 | 200 | 201 | 202 | 203 | 204 | 205 | 206 | 207 | 208 | 209 | 210 | 211 | 212 | 213 | 214 | 215 | 216 | 217 | 218 | 219 | 220 | 221 | 222 | 223 | 224 | 225 | 226 | 227 | 228 | 229 | 230 | 231 | 232 | 233 | 234 | 235 | 236 | 237 | 238 | 239 | 240 | 241 | 242 | 243 | 244 | 245 | 246 | 247 | 248 | 249 | 250 | 251 | 252 | 253 | 254 | 255 | 256 | 257 | 258 | 259 | 260 | 261 | 262 | 263 | 264 | 265 | 266 | 267 | 268 | 269 | 270 | 271 | 272 | 273 | 274 | 275 | 276 | 277 | 278 | 279 | 280 | 281 | 282 | 283 | 284 | 285 | 286 | 287 | 288 | 289 | 290 | 291 | 292 | 293 | 294 | 295 | 296 | 297 | 298 | 299 | 300 | 301 | 302 | 303 | 304 | 305 | 306 | 307 | 308 | 309 | 310 | 311 | 312 | 313 | 314 | 315 | 316 | 317 | 318 | 319 | 320 | 321 | 322 | 323 | 324 | 325 | 326 | 327 | 328 | 329 | 330