没有贫穷
发表于 2025-3-25 06:11:26
https://doi.org/10.1007/978-3-642-51085-4sonic reflection and acoustic properties of cancerous tissue . Follow-up of these fundamental observations founded the field of diagnostic ultrasound and set the stage for early cancer detection at accessible sites on a screening basis .
finite
发表于 2025-3-25 11:08:15
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黑豹
发表于 2025-3-25 12:33:24
Book 1990ary and gastrointestinal tracts. The development of electro surgical techniques, laser technology, injection therapy, and a wide variety of other modalities now allow the endoscopist to treat many problems that in the past required open surgery. The simultaneous development of transcutaneous abdomi
滔滔不绝地讲
发表于 2025-3-25 18:32:23
A Historical Review of the Genesis and Early Development of Intrusive Pulse-Echo Ultrasound,These limitations, emerging as the work progressed in laboratory and clinic, followed two primary basic scientific discoveries reported in 1949. These discoveries were (a) sonic energy reflection from both gross and fine histological structure of soft tissues and (b) observation of differential
狗窝
发表于 2025-3-25 22:23:17
Endosonography: Physical Basics and Instrumentation,anical waves have frequencies which range from little more than 0 Hz up to several hundred million. For convenience, this vast range may be represented in the form of an ., which is analogous to the more familiar spectrum of electromagnetic radiation. A typical frequency spectrum of mechanical waves
带来
发表于 2025-3-26 00:42:31
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性上瘾
发表于 2025-3-26 05:10:00
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Explicate
发表于 2025-3-26 08:58:01
Endosonography of the Prostate and Associated Structures,upon digital rectal examination and cystoscopy. With the advent of transrectal endosonography, areas of the prostate and associated structures which previously were inaccessible to examination are now seen with unprecedented clarity.
浪费时间
发表于 2025-3-26 14:39:49
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Intuitive
发表于 2025-3-26 18:27:32
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