1. Amalungu akhokelayo
Kubandakanya umlenze oqhelekileyo ukhokelela i-I, II, kunye ne-III kunye noxinzelelo lwe-unipolar limb ikhokelela i-aVR, i-aVL, kunye ne-aVF.
(1) Ilothe yelungu eliqhelekileyo: ekwabizwa ngokuba yi-bipolar lead, ebonisa umahluko onokubakho phakathi kwamalungu amabini.
(2) Uxinzelelo lwe-unipolar lead lead: kwii-electrode ezimbini, i-electrode enye kuphela ibonisa amandla, kwaye ikhono lenye i-electrode lilingana no-zero.Ngeli xesha, i-amplitude ye-waveform eyenziweyo incinci, ngoko ke uxinzelelo lusetyenziselwa ukwandisa amandla okulinganisa ukufunyanwa lula.
3 ilungu, kwaye i-electrode eluhlaza ikwinyawo kunye neqatha lelungu elisezantsi lasekhohlo.I-electrode emnyama ikwi-ankle yelungu elisezantsi lasekunene.
2. Isifuba sikhokelela
Kukukhokela kwe-unipolar, kubandakanywa ne-V1 ukuya kwi-V6.Ngexesha lokuvavanya, i-electrode efanelekileyo ifanele ibekwe kwindawo echaziweyo yodonga lwesifuba, kwaye i-electrode ye-3 ye-lead lead kufuneka idityaniswe kwi-electrode engalunganga ngokusebenzisa i-resistor ye-5 K ukwenza i-terminal yombane ephakathi.
Ngexesha lovavanyo lwe-ECG lwesiqhelo, iinkokeli ezili-12 ze-bipolar, iintambo ezicinezelekileyo ze-unipolar kunye ne-V1～V6 zinokuhlangabezana neemfuno.Ukuba i-dextrocardia, i-right ventricular hypertrophy, okanye i-myocardial infarction ikrokrelwa, i-lead V7, V8, V9, kunye ne-V3R kufuneka yongezwe.I-V7 ikwinqanaba le-V4 kumgca we-axillary wasekhohlo;I-V8 ikwinqanaba le-V4 kumgca we-scapular wasekhohlo;I-V9 isecaleni lomqolo wasekhohlo Umgca V4 ukwinqanaba;I-V3R ikwindawo ehambelana nayo ye-V3 kwisifuba sasekunene.
Ukubaluleka kokubeka iliso
1. Inkqubo ye-12-lead monitoring system ingabonakalisa iziganeko ze-myocardial ischemia ngexesha.I-70% ukuya kwi-90% ye-ischemia ye-myocardial ifunyenwe nge-electrocardiogram, kwaye ngokweklinikhi, ihlala ingabonakali.
2. Kwizigulane ezisemngciphekweni we-ischemia ye-myocardial, njenge-angina engazinzanga kunye ne-myocardial infarction, i-12-lead ST-segment eqhubekayo yokubeka iliso ye-ECG inokubona ngokukhawuleza iziganeko ze-ischemia ze-myocardial, ngokukodwa iziganeko ze-myocardial ischemia engabonakaliyo, eyiklinikhi Ukubonelela ngesiseko esithembekileyo sokuxilongwa ngexesha. kunye nonyango.
3. Kunzima ukuhlukanisa ngokuchanekileyo phakathi kwe-tachycardia ye-ventricular kunye ne-supraventricular tachycardia kunye ne-intraventricular differential conduction usebenzisa i-lead II kuphela.Olona khokelo lulungileyo lokuhlukanisa ngokuchanekileyo ezimbini yi-V kunye ne-MCL (i-P wave kunye ne-QRS complex ine-morphology ecacileyo).
4. Xa uvavanya izingqisho zentliziyo ezingaqhelekanga, ukusebenzisa iintambo ezininzi kuchaneka ngakumbi kunokusebenzisa ilothe enye.
5. Inkqubo ye-12-lead monitoring system ichanekile kwaye ifike ngexesha ukuze ukwazi ukuba isigulane sine-arrhythmia kunenkqubo yendabuko yokubeka iliso, kunye nohlobo lwe-arrhythmia, izinga lokuqala, ixesha lokubonakala, ubude, kunye notshintsho ngaphambi nangemva. unyango lweziyobisi.
6. Ukujongwa kwe-ECG eqhubekayo ye-12 kubaluleke kakhulu ekunqumeni uhlobo lwe-arrhythmia, ukukhetha iindlela zokuxilonga kunye nonyango, kunye nokuqwalasela imiphumo yonyango.
7. Inkqubo ye-12-lead monitoring system nayo inemida yayo kwizicelo zeklinikhi, kwaye iyakwazi ukuphazamiseka.Xa isikhundla somzimba wesigulane sitshintsha okanye i-electrodes isetyenziselwa ixesha elithile, amaza amaninzi okuphazamiseka aya kubonakala kwisikrini, okuya kuchaphazela isigwebo kunye nohlalutyo lwe-electrocardiogram.
Ixesha lokuposa: Oct-12-2021