42. 其他的ECT性能測試用假體
-SPET Quality test Phantom (IEC & NEMA Phantom)
IEC - International Electrotechnical Commission, NEMA - National Electrical Manufacturers Association
依造NEMA規範進行接收測試、評估散射分率、
評估活性減少比率與相對計數率變異之關係.
NEMA Triple line Phantom
NEMA SPET Scatter Phantom
依造NEMA規範進行接收測試、C.O.R.誤差影響、不同旋轉
半徑下空間解析力變異評估、評估在不同介質(如:水、空氣)
中空間解析力的變異情形、評估重組條件或散射貢獻.
43. 其他的ECT性能測試用假體
-PET Quality test Phantom (IEC & NEMA Phantom)
IEC - International Electrotechnical Commission, NEMA - National Electrical Manufacturers Association
78. Integral uniformity for UFOV and CFOV
100 (Max - Min)
(Max + Min)
iU % =
Differential uniformity for UFOV and CFOV
100 (Max - Min)
(Max + Min)
dU % =
▲ 整體均勻度及其變異情形可由右側兩式得知.
134. ▼常規的週品管項目
• Hounsfield Unit Calibration
– ROI means
– ROI standard deviation range
• mAs setting accuracy
• kVp, mAs exercising
– Filament adaptation
– Collimation
• Slice thickness
– Physics layer
• Check error log
PET/CT QC/QA training course, Magnus Dahlbom Ph D,
David Geffen School of Medicine at UCLA
135. SIEMENSCTI ECAT ACCEL training course
GE DLSDST training course
▼季半年的常規品管 CT QC
‧Slice Thickness
‧Slice Positioning
‧Laser Alignment
‧CT Scale
‧Resolution
‧Low Contrast Resolution
‧Dosimetry