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日期:2026-04-21
In the field of contrast-enhanced ultrasonography (US), contrast agents are classified as either first- or second-generation agents depending on the gas within ......
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日期:2026-04-21
Ultrasonography uses high-frequency sound (ultrasound) waves to produce images of internal organs and other tissues. A device called a transducer converts ......
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日期:2026-04-23
In ultrasonography, a signal generator is combined with a transducer. Piezoelectric crystals in the signal generator convert electricity into high-frequency sound ......
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日期:2026-04-24
The official Journal of the Romanian Society of Ultrasound in Medicine and Biology (SRUMB)...
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日期:2026-04-19
2014年9月18日 - suspected nephrolithiasis to undergo initial diagnostic ultrasonography performed by an emergency physician (point-of-care ultrasonography), ......
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日期:2026-04-24
2014年9月18日 - Original Article from The New England Journal of Medicine — Ultrasonography versus Computed Tomography for Suspected Nephrolithiasis....
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日期:2026-04-20
N Engl J Med. 2014 Sep 18;371(12):1100-10. doi: 10.1056/NEJMoa1404446. Ultrasonography versus computed tomography for suspected nephrolithiasis....
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日期:2026-04-23
1: Ultrasonography The visualization of deep structures of the body by recording the reflections or echoes of ultrasonic pulses directed into the tissues. Use of ......



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