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Software module development for high resolution pet system

Yüksek rezolüsyonlu pet sistemleri için modül geliştirilmesi

  1. Tez No: 193225
  2. Yazar: PINAR ÇELİK
  3. Danışmanlar: DOÇ.DR. GAMZE ÇAPA KAYA, PROF.DR. UWE PIETRZYK
  4. Tez Türü: Yüksek Lisans
  5. Konular: Fizik ve Fizik Mühendisliği, Radyoloji ve Nükleer Tıp, Physics and Physics Engineering, Radiology and Nuclear Medicine
  6. Anahtar Kelimeler: ClearPET, Module_Check, module group, gantry rotation, sinusoidal graphic, error detection.XXIIÖZYÜKSEK REZOLÜSYONLU PET SISTEMLERI ÇIN MODÜL GELIŞTIRILMESI
  7. Yıl: 2006
  8. Dil: İngilizce
  9. Üniversite: Dokuz Eylül Üniversitesi
  10. Enstitü: Sağlık Bilimleri Enstitüsü
  11. Ana Bilim Dalı: Nükleer Tıp Ana Bilim Dalı
  12. Bilim Dalı: Belirtilmemiş.
  13. Sayfa Sayısı: 149

Özet

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Özet (Çeviri)

ABSTRACTSOFTWAREMODULE DEVELOPMENT FOR HIGH RESOLUTION PET SYSTEMSAim: ClearPET is a small animal PET scanner device which is made by the CCC (CrystalClear Collaboration) and used at the Juelich Research Center. A program based on IDL 6.1(Interactive Data Language) named Module_Check written is aimed to be used for qualitycontrol of the ClearPET.Material, Method: The Module_Check program was written to evaluate the informationwhich come from each module group and are stored in .ang files during the detection. In theprogram, the user shall input the address of the data. After that, the necessary graphs andoutputs can be selected. Module_Check was tested with the 68Ge and blank scan data acquired18 68while the gantry was in fixed state, and F, Ge and blank scan data taken during gantryrotation. Maximum, minimum and average values and their standard deviations were foundby program. Module_Check was tested whether or not it could find errors which were alreadyknown by checking ASCII formatted data manually.68Results: Graphics taken while the gantry was in fixed state was linear. Graphics of the Ge18and F counts taken during gantry rotation was like sinus curve. Minimum and maximumangle values were observed at about 90° and 270° in these sinusoidal graphics. Averages of68minimum and maximum angle values of Ge counts were determined as 53°±15° and227°±12°. Besides, averages of minimum and maximum angle values of module group counts18 68taken with F source were calculated as 246°±16° and 75°±16°. Counter to Ge, minimum18angle value was between 180°-270° and while maximum value was between 0°-90° in Fmeasurements. Blank scan measurement gives a noisy line though taken during gantryrotation. % deviation between minimum and maximum counts for rotating gantry was 16.9 for68 18Ge and 5.6 for F. This program can detect the errors. The program showed that ModuleGroup 1 measurements were inaccurate for the blank scan data of in which error was knownbefore. Additionally, the program found out that the measurements of Module Group 3 from289th to 335th in 18F experiment were inaccurate. This error wasn?t known before the creationof the module group graphics.Conclusion: Module_Check program runs correctly. This program may be suggested in orderto use finding the errors of cassettes (module groups) of the ClearPET.

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