显微镜
发表于 2025-3-23 13:46:05
Book 1989latest major breakthroughs in the history of diagnostic ultrasound. Although early attempts at inserting ultrasound transducers in natural cavities of the body can be traced back more than two decades, only in the past few years has technology allowed the development and commercialization of effecti
implore
发表于 2025-3-23 17:29:39
,Was Sie über den Schmerz wissen sollten,than transmitted. Further, since the attenuation . of the beam is related to its frequency . as . = ...... = attenuation coefficient at 1 MHz; . ≈ 1), the transcutaneous visualization of deep structures requires the use of low frequencies, which limits image resolution and, consequently, the diagnostic capabilities.
Conduit
发表于 2025-3-23 19:38:09
https://doi.org/10.1007/978-3-642-34934-8There is suboptimal visualization in obese individuals — where penetration is limited — and in those patients with many air-filled loops of bowel. Thus, adequate diagnostic studies are not always obtained. Various techniques have been developed in an attempt to overcome these limitations.
衰弱的心
发表于 2025-3-23 22:40:45
https://doi.org/10.1007/b138366ctures by sonography can be extremely helpful for optimal utilization of laparoscopy. With the ultrasound transducer in direct contact with the intraperioneal organs, sound wave propagation is optimal and high frequencies can be used, yielding better image quality and more information than in transcutaneous sonography.
Osteoarthritis
发表于 2025-3-24 03:34:36
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凶兆
发表于 2025-3-24 07:28:23
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MILK
发表于 2025-3-24 12:50:36
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Bricklayer
发表于 2025-3-24 17:19:49
Laparoscopic sonography,ctures by sonography can be extremely helpful for optimal utilization of laparoscopy. With the ultrasound transducer in direct contact with the intraperioneal organs, sound wave propagation is optimal and high frequencies can be used, yielding better image quality and more information than in transcutaneous sonography.
怎样才咆哮
发表于 2025-3-24 21:27:02
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dagger
发表于 2025-3-25 01:48:06
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