کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1762787 | 1019715 | 2006 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Lesions of ultrasound-induced lung hemorrhage are not consistent with thermal injury
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
آکوستیک و فرا صوت
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Lesions of ultrasound-induced lung hemorrhage are not consistent with thermal injury Lesions of ultrasound-induced lung hemorrhage are not consistent with thermal injury](/preview/png/1762787.png)
چکیده انگلیسی
Thermal injury, a potential mechanism of ultrasound-induced lung hemorrhage, was studied by comparing lesions induced by an infrared laser (a tissue-heating source) with those induced by pulsed ultrasound. A 600-mW continuous-wave CO2 laser (wavelength â¼10.6 μm) was focused (680-μm beamwidth) on the surface of the lungs of rats for a duration between 10 to 40 s; ultrasound beamwidths were between 310 and 930 μm. After exposure, lungs were examined grossly and then processed for microscopic evaluation. Grossly, lesions induced by laser were somewhat similar to those induced by ultrasound; however, microscopically, they were dissimilar. Grossly, lesions were oval, red to dark red and extended into subjacent tissue to form a cone. The surface was elevated, but the center of the laser-induced lesions was often depressed. Microscopically, the laser-induced injury consisted of coagulation of tissue, cells and fluids, whereas injury induced by ultrasound consisted solely of alveolar hemorrhage. These results suggest that ultrasound-induced lung injury is most likely not caused by a thermal mechanism. (E-mail: zacharyj@uiuc.edu)
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ultrasound in Medicine & Biology - Volume 32, Issue 11, November 2006, Pages 1763-1770
Journal: Ultrasound in Medicine & Biology - Volume 32, Issue 11, November 2006, Pages 1763-1770
نویسندگان
James F. Zachary, James P. Jr., Rita J. Miller, Brian J. Ricconi, J. Gary Eden, William D. Jr.,