Momwe mungasinthire chida pakuwunika kwa ultrasound (ndi kufotokozera pang'onopang'ono- Gawo 2)

2.CDFI

Kugwiritsa Ntchito CDFI: Yang'anani mitsempha yamagazi, zindikirani momwe mapaipi amayendera,

Kuzindikiritsa mitsempha ndi mitsempha, kusonyeza chiyambi ndi kumene magazi akuyenda,

Gawo la nthawi, limawonetsa momwe magazi amayendera, likuwonetsa kuthamanga kwa magazi

Pang'onopang'ono, motsogozedwa ndi mawonekedwe a Doppler sampling

1) CDFI zosintha pafupipafupi (zolemba zofiira):

2) CDFI simakonda kusintha zomwe zili

Kupindula konse:

 

Kukula kwa bokosi lamtundu ndi malo

Kusiyana kwazithunzi pakati pa Sikelo yokwezeka kwambiri, yotsika kwambiri, ndi yapakatikati

Mtundu wa zitsanzo za chimango chokhotakhota chowongolera

Pang'onopang'ono motsatira njira ya mtsempha wamagazi kuti magazi aziyenda mumtsempha wodzaza ndi wokhutiritsa.

Funso 1: Momwe mungasinthire magawo a ultrasound kuti awonetse kuthamanga kwa magazi?

1. Onjezani---kupeza

2. Chepetsani --- sikelo ya liwiro

3. Onjezani --- phokoso linanena bungwe Mphamvu

4. Onjezani --- chimango avareji

6. Chepetsa---sampling area

6. Chepetsani --- kuchuluka kwa malo omwe mukulunjika (kukhathamiritsa kwambiri)

7. Chepetsani --- mtunda

Chepetsa--chiwonetsero cha dera lachitsanzo:

Funso 2: Momwe Mungachepetsere Kutaya Kwamtundu ndi Kuchotsa Aliasing?

1. Chepetsa--kupeza

2. Onjezani--sikelo yothamanga SALE

Funso 3: Kodi mungawonjezere bwanji chimango?

1. Chepetsani --- B mode kukula

2. Chepetsa --- kuya

3. Chepetsani --- chimango chotengera mtundu

4. Chepetsani --- pafupifupi chimango

5. Chepetsani --- kuchuluka kwa malo omwe mukuganizira kwambiri

6. Chepetsani --- mtunda wozindikira

3. Njira yosinthira Doppler ya Spectral

1. Njira yogwirira ntchito: Ngati kuthamanga kwa magazi sikuli kwakukulu, sankhani PW, ngati kuthamanga kuli kwakukulu, sankhani CW.

2. Zosefera: Kusefa kwapansi kumagwiritsidwa ntchito kuti magazi azithamanga kwambiri, ndipo kusefa kwapamwamba kumagwiritsidwa ntchito pothamanga kwambiri.

3. Sikelo yothamanga: Sankhani sikelo yothamanga yomwe ikugwirizana ndi kuthamanga kwa magazi komwe kwadziwika.

4. Zitsanzo khomo: kuzindikira mitsempha ya magazi, chitsanzo chitseko ≤ m'mimba mwake chotengera cha magazi.Onani ma valve a intracardiac

Chitseko choyezera pakamwa ndi chapakatikati.

5. Ziro zoyambira: kusuntha mzere woyambira kumatha kukulitsa mulingo munjira inayake ndikupewa zolakwika.

Tsopano adatchedwa.

6. Chizindikiro chosinthira pafupipafupi chimapindika mmwamba ndi pansi: chosavuta kuyeza, chidacho chimadzivumbulutsa mawonekedwe a spectrum waveform.

7. Ngongole ya zochitika: kufufuza mtima kwa mtima ≤ 20, mitsempha yamagazi yozungulira ≤ 60, ndi mbaliyo iyenera kukonzedwa.

8. Kutumiza pafupipafupi: Kuthamanga kwapamwamba kumagwiritsidwa ntchito kuti magazi azithamanga kwambiri, ndipo mafupipafupi otsika amagwiritsidwa ntchito kuthamanga kwa magazi.

PW nthawi zambiri imasintha zomwe zili

Pamene phindu la PW ndi lalikulu kwambiri

Pamene mtundu uli wapakati, wotsika kwambiri kapena wapamwamba kwambiri

Sampling chitseko kukula

1. Pamene khomo lachitsanzo liri lopapatiza, pali kusiyana pang'ono mu liwiro la kuyenda pakati pa zigawo zoyandikana, "vt" curve ndi yopapatiza, ndipo zenera ndi lalikulu.

2. Pamene khomo lachitsanzo likuphimba lumen lonse, zenera "lodzazidwa kwathunthu"

kusintha koyambira kwambiri kapenanawonsootsika:

Funso 5: Momwe Mungakulitsire chidwi cha PW&CW

1. Onjezani phindu

2. Wonjezerani kutulutsa mawu

3. Wonjezerani kuchuluka kwa zitsanzo

4. Khazikitsani ngodya yojambulira moyenera

Zindikirani: Zida za Ultrasound zili ndi mikhalidwe yokonzedweratu ndipo ndizoyenera kuyang'ana ziwalo zosiyanasiyana ndi minofu.

Kutengera zoikamo preset, pangani kusintha koyenera malinga ndi mikhalidwe yeniyeni kukwaniritsa zosowa za matenda.