Amathrendi Ezithombe Zezokwelapha Eziye Zasinaka

Lapha, sizocubungula kafushane amathrendi amathathu athuthukisa ubuchwepheshe bokucabanga kwezokwelapha, futhi ngenxa yalokho, ukuxilonga, imiphumela yesiguli, nokufinyeleleka kwezokunakekelwa kwezempilo. Ukukhombisa lezi zitayela, sizosebenzisa imaging resonance magnetic (I-MRI), esebenzisa amasignali omsakazo (RF).

Ochwepheshe bezokunakekelwa kwempilo bancike ohlotsheni lwezindlela zokucabanga zezokwelapha ukuze babuke ngokungahlanyisi izakhiwo nemisebenzi yangaphakathi yomzimba. Lezi zindlela zibalulekile ekuxilongeni izifo nokulimala, ukuqapha ukuphumelela kokwelashwa, nokuhlela izinqubo zokuhlinza. Indlela ngayinye yokuthwebula iklanyelwe izinhlelo zokusebenza ezithile zomtholampilo.

Ukuhlanganisa Izindlela Zokucabanga

Ubuchwepheshe be-imaging obuhlanganisiwe busebenzisa amandla okuhlanganisa amasu amaningi ukuze kukhiqizwe imibono enemininingwane eminingi yomzimba. Ochwepheshe bezokunakekelwa kwempilo basebenzisa lezi zithombe ukuze bathuthukise ukuxilonga nokwelashwa kweziguli.

Isibonelo, izikena ze-PET/MRI zihlanganisa izikena ze-positron emission tomography (PET) kanye nezikena ze-MRI. I-MRI inikeza izithombe ezinemininingwane yezakhiwo zomzimba zangaphakathi nemisebenzi yazo, kuyilapho i-PET ihlonza okungavamile kusetshenziswa imikhondo. Lokhu kuhlanganiswa kunenzuzo ikakhulukazi ekwelapheni izimo ezifana nesifo i-Alzheimer's, isithuthwane, namathumba ebuchosheni. Esikhathini esedlule, ukuhlanganisa i-PET ne-MRI kwakungenzeki ngenxa yezibuthe ezinamandla ze-MRI eziphazamisana nezitholi zezithombe ze-PET. Izikena bekufanele zenziwe ngokwehlukana bese zihlanganiswa, okubandakanya ukucutshungulwa kwesithombe okuyinkimbinkimbi kanye nokulahleka kwedatha okungaba khona. Ngokusho kwe-Stanford Medicine, inhlanganisela ye-PET/MRI inembe kakhulu, iphephile, futhi ifaneleka kakhulu kunokuskena okuhlukene.

Ukwandisa Ukusebenza Kwesistimu Yokuthwebula

Ukuthuthukiswa kokusebenza kuphumela ekuthuthukisweni kwekhwalithi yesithombe kanye nolwazi olunembe kakhudlwana ngezinjongo zokuxilonga nokwelapha. Isibonelo, abacwaningi manje sebenokufinyelela kuzinhlelo ze-MRI ezinamandla afinyelela ku-7T. Lokhu kuthuthukiswa kokusebenza kuthuthukisa isilinganiso se-signal-to-noise (SNR), okuholela emiphumeleni yesithombe ecacile nenemininingwane eyengeziwe. Kukhona futhi idrayivu yokwenza izamukeli ze-MRI ziqondiswe ngokwedijithali. Ngokutholakala kokulungiswa okuphezulu kanye neziguquli eziphakeme ze-analog-to-digital (ADCs), kunethuba lokushintsha i-ADC iye kukhoyili ye-RF, okunganciphisa umsindo futhi kwandise i-SNR lapho ukusetshenziswa kwamandla kulawulwa ngendlela efanele. Izinzuzo ezifanayo nazo zingatholakala ngokungeza amakhoyili e-RF engeziwe ohlelweni. Ukubeka phambili ukuthuthukiswa kokusebenza kuhumushela ekuthuthukiseni izici zokuhlangenwe nakho kwesiguli njengezikhathi zokuskena nezindleko.

Ukudizayina Izisetshenziswa Zokuthwebula Ukuphatheka

Ngokuklama, okunye ukuhlola kwesiguli nezinto zokwelashwa kwaqala endaweni elawulwayo ukuze kusebenze kahle (isb., i-MRI suite).

I-tomography yekhompyutha (CT) kanyeimaging magnetic resonance (I-MRI) ziyizibonelo ezinhle.

Nakuba lezi zindlela zokuthwebula izithombe zisebenza ngempumelelo ekuxilongeni, zingadinga kakhulu ezigulini ezigula kakhulu. Intuthuko yezobuchwepheshe manje isishintsha lezi zinsizakalo zokuxilonga ziye lapho kukhona iziguli.

Uma kuziwa kumadivayisi ajwayelekile anganyakazi njengemishini ye-MRI, ukudala idizayini yokuphatheka kuhilela ukucabangela izinto ezifana nosayizi nesisindo, amandla, amandla kazibuthe, izindleko, ikhwalithi yesithombe, nokuphepha. Ezingeni lengxenye, ukukhetha okufana nama-capacitor asebenza kahle kakhulu kudlala indima ebalulekile ekuqinisekiseni ukukhiqizwa kwamandla okuzinzile nokusebenza kahle kanye nokucutshungulwa kwesignali ngaphakathi kohlaka oluncane, oluphathekayo.

—————————————————————————————————————

Ngokuthuthuka kobuchwepheshe bezithombe zezokwelapha, kuphuma izinkampani eziningi ezingahlinzeka ngemikhiqizo yokuthwebula izithombe, njengama-injection namasirinji. Ubuchwepheshe bezokwelapha be-LnkMed bungenye yazo. Sihlinzeka ngephothifoliyo egcwele yemikhiqizo yokuhlola eyisiza:Ama-injection e-CT,Umjovo we-MRIfuthiI-DSA injector. Basebenza kahle ngemikhiqizo ehlukahlukene yesithwebuli se-CT/MRI njenge-GE, Philips, Siemens. Ngaphandle komjovo, siphinde sinikeze isirinji kanye neshubhu elisebenzisekayo lemikhiqizo ehlukene yomjovo ehlanganisaI-Medrad/Bayer, I-Mallinckrodt/Guerbet, I-Nemoto, I-Medtron, Ulrich.

Okulandelayo amandla ethu ayisisekelo: izikhathi zokulethwa okusheshayo; Qedela iziqu zesitifiketi, iminyaka eminingi yesipiliyoni sokuthekelisa, inqubo yokuhlola ikhwalithi ephelele, imikhiqizo esebenza ngokugcwele.

Wena kanye neqembu lakho namukelekile ukuthi nize nizobonisana, sihlinzeka ngenkonzo yokwamukela amahora angama-24.