Ukuntuleka kwe-Helium kudala umuzwa omusha wokuphuthuma emphakathini wezithombe zezokwelapha

I-NBC News muva nje ibike ukuthi ochwepheshe bezokunakekelwa kwempilo bakhathazekile kakhulu ngomhlaba jikelelei-heliumukushoda kanye nomthelela wako emkhakheni we-magnetic resonance imaging.I-Heliumkubalulekile ukugcina umshini we-MRI upholile ngenkathi usebenza. Ngaphandle kwawo, isithwebuli asikwazi ukusebenza ngokuphephile. Kodwa eminyakeni yamuva nje,i-heliumukuhlinzekwa kudonsele ukunaka okukhulu, futhi abanye abahlinzeki sebeqalile ukulinganisela isici esingavuseleleki.

Nakuba lokhu sekuqhubeke iminyaka eyishumi noma ngaphezulu, izindaba zakamuva ngalesi sihloko zibonakala zenezela umuzwa wokuphuthuma. Kodwa ngasiphi isizathu?

Njengoba kunjalo ngezinkinga eziningi zokuphakelwa eminyakeni emithathu edlule, ubhubhane lushiye amamaki athile ekuhlinzekweni nasekusatshalalisweni kwemikhiqizo.i-heliumImpi yase-Ukraine nayo yaba nomthelela omkhulu ekuhlinzekweni kwe-i-heliumKuze kube muva nje, iRussia bekulindeleke ukuthi ihlinzeke cishe ingxenye yesithathu ye-helium yomhlaba evela esikhungweni esikhulu sokukhiqiza eSiberia, kodwa umlilo kulesi sikhungo ubambezele ukuqaliswa kwalesi sikhungo futhi impi yaseRussia e-Ukraine iye yandisa kakhulu ubudlelwano bayo nobudlelwano bezohwebo base-US. Zonke lezi zici ziyahlangana ukuze zibhebhethekise izinkinga zochungechunge lokuhlinzekwa kwempahla.

UPhil Kornbluth, umongameli weKornbluth Helium Consulting, wabelane ne-NBC News ukuthi i-US ihlinzeka cishe ngamaphesenti angama-40 omhlaba wonke.i-helium, kodwa izingxenye ezine kwezinhlanu zabahlinzeki abakhulu bezwe sebeqalile ukwabela. Njengabahlinzeki abasanda kubandakanyeka ekushodeni kwe-iodine contrast, abahlinzeki be-helium baphendukela emasu okunciphisa afaka phakathi ukubeka phambili izimboni ezinezidingo ezibaluleke kakhulu, njengokunakekelwa kwempilo. Lezi zinyathelo azikakahunyushi ekukhanselweni kwezivivinyo zezithombe, kodwa sezivele zibangele ukushaqeka okwaziwayo emphakathini wesayensi nocwaningo. Izinhlelo eziningi zocwaningo lwaseHarvard ziyavalwa ngokuphelele ngenxa yokushoda, kanti i-UC Davis muva nje yabelane ngokuthi omunye wabahlinzeki babo unciphise izibonelelo zabo phakathi, kungakhathaliseki ukuthi ngezinjongo zezokwelapha noma cha. Le ndaba iphinde yadonsela ukunaka kwabakhiqizi be-MRI. Izinkampani ezifana ne-GE Healthcare kanye ne-Siemens Healthineers bezilokhu zithuthukisa amadivayisi asebenza kahle futhi adinga okuncane.i-heliumKodwa-ke, lawa masu awakasetshenziswa kabanzi okwamanje.