Litharollo tsa Nuclear Medical imaging
Medical imaging ke eng?
Litšoantšo tsa nyutlelie tsa bongaka (tseo hape li bitsoang radionuclide scanning) ke sesebelisoa se sebetsang hantle sa tlhahlobo hobane ha se bontše feela sebōpeho (sebopeho) sa setho kapa setho sa 'mele, empa le mosebetsi oa setho le sona."Boitsebiso bo sebetsang" bona bo lumella meriana ea nyutlelie ho hlahloba mafu a itseng le maemo a fapaneng a bongaka kapele ho feta litlhahlobo tse ling tsa litšoantšo tsa bongaka tse fanang ka tlhaiso-leseling ea anatomic (ea sebopeho) mabapi le setho kapa setho sa 'mele.Meriana ea nyutlelie e ka ba ea bohlokoa tlhahlobong ea pele, kalafo, le thibelo ea maemo a mangata a bongaka mme e ntse e tsoela pele ho hola joalo ka sesebelisoa se matla sa bongaka.
BAKENG SA LITHEHONG TSE KHOLO TSA TLHOKOMELISO EA BOPHELO tse fanang ka taolo ea litšoantšo tsa tlhahlobo ea bongaka tseo esale e le karolo ea bophelo ba bona ba letsatsi le letsatsi bakeng sa mekhoa e akaretsang ea radiology (e leng, CT, MR, X-ray, PET, SPECT, joalo-joalo).Leha ho le joalo, litsebi tsa mekhatlo ena, ho tloha ho lingaka, litsebi tsa theknoloji, le batsamaisi, ho basebetsi ba PACS / IT, le bona ba 'nile ba utloa bohloko ba ho se be le tharollo e nepahetseng ea PACS bakeng sa mekhoa e mengata e fapaneng.Mekhoa e sa sebetsoeng ka ho fetesisa ke PACS ke mekhoa ea ho nahana ka molek'hule ea nyutlelie, ho kenyeletsoa PET-CT, SPECT-CT, nuclear cardiology, le general nuclear medicine.
Le hoja litšoantšo tsa limolek'hule tsa nyutlelie li batla li le nyenyane ha ho nahanoa ka palo ea litlhahlobo tse etsoang ka selemo, bohlokoa ba eona ha boa lokela ho khelloa fatše, ho latela bongaka le licheleteng.PET-CT e ipakile e le eona mokhoa oa de facto ha ho tluoa tabeng ea ho hlahloba kankere.Nuclear cardiology e bile mofuta oa khetho bakeng sa lefu la pelo le sa hlaseleng.Meriana e akaretsang ea nyutlelie e fana ka lits'ebetso tse ngata tse sebetsang tsa litšoantšo tseo ho seng mekhoa e meng e ka bapisoang.Ka lichelete, PET-CT le nyutlelie cardiology li ntse li le har'a mekhoa e buselelitsoeng ka ho fetisisa ea ho etsa litšoantšo tsa tlhahlobo.
Se etsang hore litšoantšo tsa limolek'hule tsa bongaka tsa nyutlelie li fapane le mekhoa ea radiology e akaretsang ke hore litšoantšo tsa pele li bontša mesebetsi ea 'mele, ha tse latelang li bontša sebōpeho sa' mele.Ke ka hona litšoantšo tsa limolek'hule tsa nyutlelie ka linako tse ling hape li bitsoang imaging ea metabolic.E le ho sekaseka mesebetsi ea 'mele ho tloha litšoantšong tse fumanoeng, ho hlokahala lisebelisoa tse khethehileng tsa ho shebella le ho hlahloba.Lisebelisoa tsena ke tsona tse haellang ho tsoa ho bongata ba PACS kajeno.
Mabapi le sena, k'hamphani e ntseng e eketseha ea theknoloji ea litšoantšo tsa bongaka e batla ho nts'etsapele moloko o mocha oa PET, SPECT.
Ke Hobane'ng ha U Khetha Kinheng:
1.Minimal pixel dimension e fumaneha
2.Reduced optical crosstalk
3.Ho tšoana hantle lipakeng tsa pixel ho pixel/ Array to array
Lisebelisoa tsa 4.TiO2/BaSO4/ESR/E60 lia fumaneha
5.Lekhalo la Pixel: 0.08, 0.1, 0.2, 0.3mm
Teko ea 6.Performance e fumaneha
Papiso ea Thepa ea Thepa:
| Lebitso la ntho | CsI(Tl) | GAGG | CdWO4 | LYSO | LSO | BGO | GOS(Pr/Tb) Ceramic |
| Boima ba 'mele(g/cm3) | 4.51 | 6.6 | 7.9 | 7.15 | 7.3~7.4 | 7.13 | 7.34 |
| Hygroscopic | Hanyane | No | No | No | No | No | No |
| Leseli le amanang (% la NaI(Tl)) (bakeng sa γ-ray) | 45 | 158(HL)/ 132(BL)/79(FD) | 32 | 65-75 | 75 | 15-20 | 71/118 |
| Nako ea ho bola | 1000 | 150(HL)/ 90(BL)/748(FD) | 14000 | 38-42 | 40 | 300 | 3000/600000 |
| Afterglow@30ms | 0.6-0.8% | 0.1-0.2% | 0.1-0.2% | N/A | N/A | 0.1-0.2% | 0.1-0.2% |
| Mofuta oa Array | Liner le 2D | Liner le 2D | Liner le 2D | 2D | 2D | 2D | Liner le 2D |
Moralo oa mochini oa ho kopanya:
Ho ipapisitsoe le ts'ebeliso ea ho qetela ea sehlopha se kopaneng, ho na le mefuta e mengata ea boqapi ba makhene ho tloha Kinheng ho kopana le indasteri ea tlhahlobo ea bongaka le ts'ireletso.
1D Liner array e sebelisoa haholo bakeng sa indasteri ea tlhahlobo ea Ts'ireletso, joalo ka Bagger scanner, Aviation scanner, 3D scanner le NDT.Material Inluding CsI(Tl), GOS:Tb/Pr Film, GAGG:Ce, CdWO4 scintillator joalo-joalo. Ka tloaelo li kopantsoe le Silicon Photodiode line array bakeng sa ho bala.
2D array hangata e sebelisoa bakeng sa ho nka litšoantšo, ho kenyelletsa Medical(SPECT, PET, PET-CT, ToF-PET), SEM, khamera ea Gamma.Mefuta ena ea 2D hangata e kopantsoe le mefuta ea SIPM, lethathamo la PMT bakeng sa ho baloa.Kinheng e fana ka 2D array ho kenyelletsa LYSO, CsI(Tl), LSO, GAGG, YSO, CsI(Na), BGO scintillator joalo-joalo.
Ka tlase ke setšoantšo sa kinheng se tloaelehileng sa 1D le 2D bakeng sa indasteri.
(Kinheng liner array)
(Kinheng 2D array)
Boholo le linomoro tsa Pixel:
| Lintho tse bonahalang | Boholo bo tloaelehileng ba pixel | Linomoro tse tloaelehileng | ||
| Liner | 2D | Liner | 2D | |
| CsI(Tl) | 1.275x2.7 | 1x1 limilimithara | 1x16 | 19x19 |
| GAGG | 1.275x2.7 | 0.5x0.5mm | 1X16 | 8x8 |
| CdWO4 | 1.275x2.7 | 3x3 limilimithara | 1x16 | 8x8 |
| LYSO/LSO/YSO | N/A | 1x1 limilimithara | N/A | 25x25 |
| BGO | N/A | 1x1 limilimithara | N/A | 13X13 |
| GOS(Tb/Pr) ceramic | 1.275X2.7 | 1x1 limilimithara | 1X16 | 19x19 |
Boholo bo fokolang ba Pixel:
| Lintho tse bonahalang | Boholo bo fokolang ba pixel | |
| Liner | 2D | |
| CsI(Tl) | bophahamo ba 0.4 limilimithara | 0.5 mm bophahamo |
| GAGG | bophahamo ba 0.4 limilimithara | 0.2 limilimithara |
| CdWO4 | bophahamo ba 0.4 limilimithara | 1mm |
| LYSO/LSO/YSO | N/A | 0.2 limilimithara |
| BGO | N/A | 0.2 limilimithara |
| GOS(Tb/Pr) ceramic | bophahamo ba 0.4 limilimithara | 1mm bophahamo |
Scintillation Array Reflector le parameter ea Adhesive:
| Sehlaseli | Botenya ba Reflector+Adhesive | |
| Liner | 2D | |
| TiO2 | 0.1-1 limilimithara | 0.1—1 limilimithara |
| BASO4 | 0.1 limilimithara | 0.1-0.5mm |
| ESR | N/A | 0.08 limilimithara |
| E60 | N/A | 0.075 limilimithara |
Kopo:
| Lebitso la ntho | CsI(Tl) | GAGG | CdWO4 | LYSO | LSO | BGO | GOS(Tb/Pr) Ceramic |
| PET, ToF-PET | Ee | Ee | Ee | ||||
| LEBAKA | Ee | Ee | |||||
| CT | Ee | Ee | Ee | Ee | |||
| NDT | Ee | Ee | Ee | ||||
| Bagger scanner | Ee | Ee | Ee | ||||
| Ho hlahloba setshelo | Ee | Ee | Ee | ||||
| Khamera ea Gamma | Ee | Ee |
Litšoantšo tsa lihlahisoa:
