B / W ultrasound Scanner kom tshaj qhov kev puas tsuaj rau tus me nyuam hauv plab seb, hauv kev kho mob, nws tseem tsis tau tso cai, yog qhov kev sib cav, feem ntau cov kws tshawb fawb xav tias B ultrasonic kuaj rau tus me nyuam hauv plab tsis paub tseeb txog kev puas tsuaj. Los ntawm B ultrasonic kom dhau lub hauv paus ntsiab lus, B ultrasonic kis tau tus mob yog, tsis muaj ionizing hluav taws xob thiab hluav taws xob hluav taws xob, yog lub suab yoj kis tau tus mob, lub suab nthwv dej rau tib neeg lub cev lub koom haum tsis muaj dab tsi ua rau mob. Tab sis yog hais tias lub suab nthwv dej nyob rau hauv ib qho chaw ruaj khov, thiab sib sau ua ke ntev, nws yuav muaj cua sov, cov cua sov ua rau qee yam, rau tib neeg cov ntaub so ntswg yuav muaj kev cuam tshuam tsis zoo, cuam tshuam ntawm cov khoom ntawm tes, nrog rau cov chromosomes. .
Txoj kev xav yog lub zog siab ntawm ultrasonic tau los ntawm nws qhov kub thiab txias thiab lub luag haujlwm ntawm cov koom haum kab noj hniav, kev puas tsuaj rau lub koom haum. Tab sis qhov tseeb, kev kho mob ntawm B ultrasonic super yog qhov siv tsawg, tsawg dua 94 mw / cubic centimeter, nws tsis muaj kev pheej hmoo rau tus me nyuam hauv plab, tseem tsis tau B ultrasonic kuaj ua rau fetal malformation qhia. Tam sim no, tag nrho cov tsev kho mob nyob rau hauv ib tug maternity siv nyob rau hauv lub teb ntawm fetal B ultrasonic kuaj yog muaj kev ruaj ntseg. Tab sis qhov ntawd tsis tau txhais hais tias nyob rau hauv tag nrho lub cev xeeb tub tuaj yeem xaiv tau ua B ultrasonic kom dhau qhov kev kuaj xyuas, thiab tsis muaj sijhawm thiab sijhawm txwv. Cov kws tshawb fawb tau ua cov kev sim no, lub 11 mus rau 12 lub lis piam ntawm lub qhov muag thiab lub pob zeb rau B ultrasonic kom dhau lub lens irradiation, pom tsis muaj teeb pom kev zoo, tsis muaj qhov cuam tshuam, teeb pom kev tsib feeb, lub ntsej muag lossis lub lens muaj me ntsis edema, illuminate kaum feeb, o degree yog illumination tsib feeb ntawm hnyav ib co, tab sis reversible, nres tom qab irradiation yuav rov qab mus rau qhov qub. Yog tias lub sij hawm irradiation ntau tshaj nees nkaum feeb, kev hloov pauv tsis tuaj yeem thim rov qab.
