ʻIke kani ultrasonic
ʻO ka lāʻau lapaʻau ultrasonic diagnostic mea hana lāʻau lapaʻau e hoʻohui i ke kumu sonar a me ka ʻenehana radar no ka noi lapaʻau.ʻO ke kumu kumu, ʻo ia ka hawewe pulse ultrasonic kiʻekiʻe i loko o ke kino, a ʻike ʻia nā ʻano nalu like ʻole mai nā pilina like ʻole i loko o ke kino e hana i nā kiʻi.No laila e hoʻoholo ai inā he mau ʻeha i loko o ke kino.Ua hoʻomohala ʻia ka mea kani ultrasonic diagnostic mai ka mea hoʻokahi-dimensional ultrasonic scanning hōʻike i ka ʻelua-dimensional ʻekolu-dimensional a me ʻehā-dimensional ultrasonic scanning a me ka hōʻike, e hoʻonui nui ai i ka ʻike leo a hoʻomaʻamaʻa i nā ʻeha i loko o ke kino biological a maʻalahi. hoʻokaʻawale.No laila, e hoʻohana nui ʻia i ka lāʻau lapaʻau ultrasonic diagnostic mea.
1. Hoʻokahi-dimensional ultrasonic scanning a me ka hōʻike
Ma ka ultrasonic diagnostic lako, kanaka e kuhikuhi pinepine i ka type A a me Type M, ka mea i ikeia e ka ultrasonic pulse-echo ana kaʻenehana ana, e like me hoʻokahi-dimensional ultrasonic nä hoʻokolohua.ʻAʻole i hoʻololi ʻia ke kuhikuhi o kēia ʻano o ke kani kani ultrasonic, a ʻokoʻa ka amplitude a i ʻole hina hina o ka hōʻailona i hōʻike ʻia mai ke kikowaena impedance non-simultaneous.Ma hope o ka hoʻonui ʻia ʻana, hōʻike ʻia ma ka ʻaoʻao ākea a i ʻole ma ka pale.Kapa ʻia kēia ʻano kiʻi kiʻi ultrasonic one-dimensional.
(1) Type A ultrasound scan
Probe (transducer) e like me ke kūlana probe, ma ke ala paʻa i ke kino kanaka e hoʻopuka i kekahi mau hawewe kani ultrasonic megahertz, ma o ke kino kanaka echo noʻonoʻo a hoʻonui, a me ka echo amplitude a me ke ʻano ma ka hōʻike pale.Hōʻike ka hoʻonohonoho kū pololei o ka hōʻike i ke ʻano nalu amplitude o ka leo noʻonoʻo;Aia ka manawa a me ka mamao ma ka abscissa.Hiki ke hoʻokumu i kēia ma kahi o ka echo, echo amplitude, shape, wave number and related information from the lesion and anatomical location of the subject for diagnostics.A – type ultrasonic probe ma kahi kūlana paʻa hiki ke loaʻa ka spectrum.
(2) M-type ultrasound scanner
Hoʻouna ka probe (transducer) a loaʻa i kahi kukuna kani ultrasonic i ke kino ma kahi kūlana a me ke kuhikuhi.Hoʻololi ka lāʻau i ka ʻōlinolino o ka laina scan vertical o ka hōʻike ma o ka hele ʻana i nā hōʻailona echo o nā hohonu like ʻole, a hoʻonui iā ia i ka hoʻonohonoho manawa, e hana ana i kahi kiʻikuhi trajectory o ka neʻe ʻana o kēlā me kēia kiko ma kahi ākea hoʻokahi i ka manawa.ʻO kēia ka M-mode ultrasound.Hiki ke hoʻomaopopo ʻia ʻo ia: ʻO ke kani ʻana o ka M-mode ultrasound kahi papa kuhikuhi hoʻokahi-dimensional o nā loli manawa ma nā wahi hohonu like ʻole ma ka ʻaoʻao like.ʻO ka ʻōnaehana M-scan ka mea kūpono no ka nānā ʻana i nā ʻāpana kaʻa.No ka laʻana, i ka nānā ʻana i ka puʻuwai, hiki ke ana ʻia nā ʻano ʻāpana hana cardiac ma ka trajectory kiʻi i hōʻike ʻia, no laila ke ʻano ultrasound m-mode.ʻIke pū ʻia ʻo echocardiography.
2. ʻElua-dimensional ultrasonic scanning a me ka hōʻike
No ka mea hiki i ka nānā 'ana i ho'okahi wale nō ke 'ike i nā kino kanaka e like me ka amplitude o ka hawewe ho'iho'i kani ultrasonic a me ka mānoanoa o ka leo ma ka pakuhi, 'o ka 'ano ultrasound (a-type ultrasound) i kaupalena 'ia i ka ma'i lapa'au kani ultrasonic.ʻO ke kumu o ka hoʻohana ʻana i ke kani kani kani ultrasonic e hoʻohana i ke kani kani kani ultrasonic, ka hoʻoponopono ʻana i ka ʻōlinolino o ka hōʻike unahi hina hina ʻelua, e hōʻike pono ana i ka ʻike o kahi ʻāpana o ke kino kanaka.ʻO ka ʻōnaehana scanning ʻelua-dimensional e hana i ka transducer i ke kino kanaka ma kahi ala paʻa i loko o ka probe i hoʻokuʻu ʻia i kekahi mau ultrasound MHZ, a i kekahi wikiwiki i kahi ākea ʻelua, ʻo ia hoʻi ka scanned no ʻelua-dimensional space, a laila hoʻouna ʻia ma hope o ke kanaka. kino e hoʻonui i ka hana hōʻailona echo no ka hōʻike ʻana i ka cathode a i ʻole ka mana ma ka pā, hoʻololi ka hōʻike ʻana o ka ʻōlinolino wahi kukui me ka nui o ka hōʻailona echo, Hoʻokumu ʻia kahi kiʻi tomography ʻelua.Ke hōʻike ʻia ma ka pale, hōʻike ka ordinate i ka manawa a i ʻole ka hohonu o ka hawewe kani i loko o ke kino, ʻoiai ua hoʻololi ʻia ka ʻōlinolino e ka amplitude o ka kani kani ultrasonic ma ke kiko kikowaena kūpono, a ʻo ka abscissa e hōʻike ana i ke kuhikuhi o ka kukuna kani e nānā ana i ka. kino kanaka.
Ka manawa hoʻouna: Mei-28-2022