Owandy Radiology i-max touch 3D, User Manual

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User Manual - Contents
NIMXEN020I
Owandy Radiology SAS
6.4 SOFTWARE ...................................................................................................................... 35
6.5 I-MAX 3D
– PC COMMUNICATION ................................................................................. 35
6.6 REFERENCE STANDARD ............................................................................................... 36
6.7 CBCT CONDITIONS OF OPERATION ............................................................................ 38
6.7.1 REFERENCE PLANE .......................................................................................... 38
6.8 CTDI INFORMATION ........................................................................................................ 39
6.8.1 MEASURE CONDITIONS .................................................................................... 39
6.8.2 MEASUREMENT PROCEDURE ......................................................................... 39
6.8.3 MEASURED VALUES .......................................................................................... 40
6.8.4 MEASURED DOSE VALUES FOR OTHER CONDITIONS OF OPERATION .... 40
6.8.5 DOSE PROFILE ................................................................................................... 41
7. REMOVABLE PART LIST ...................................................................... 42
8. QUALITY ASSURANCE PROGRAM ...................................................... 43
8.1 QUALITY CONTROL TOOLS ........................................................................................... 43
8.2 FUNCTIONING OF THE INDICATOR LIGHTS ................................................................ 44
8.3 LASER ALIGNMENT CHECK ........................................................................................... 44
8.4 PANORAMIC IMAGE QUALITY CHECK .......................................................................... 45
8.4.1 LOG BOOK .......................................................................................................... 48
8.5 3D IMAGE QUALITY CHECK ........................................................................................... 49
8.5.1 "QC TOOL" SOFTWARE ..................................................................................... 49
8.5.2 3D TEST IMAGE ACQUISITION ......................................................................... 51
8.5.3 NYQUIST FREQUENCY ...................................................................................... 53
8.5.4 CONTRAST TO NOISE RATIO ........................................................................... 53
8.5.5 SPATIAL RESOLUTION ...................................................................................... 54
8.5.6 CT NUMBER ........................................................................................................ 54
8.5.7 LENGTH AND WIDTH MEASURES .................................................................... 54
8.5.8 SLICE THICKNESS ............................................................................................. 54
8.5.9 HOMOGENEITY .................................................................................................. 55
8.5.10 DOSE AT THE ISOCENTER ............................................................................... 55
8.5.11 ACCEPTANCE INDEX ......................................................................................... 55
8.5.12 LOG BOOK .......................................................................................................... 56
8.6 DOSIMETRY TEST (PARAGRAPH FOR AUTHORISED PERSONNEL) ........................ 57
8.6.1 LOG BOOK .......................................................................................................... 59
9. GENERAL INSTRUCTIONS FOR USE ................................................... 60
9.1 SWITCHING THE DEVICE ON AND OFF ........................................................................ 60
9.1.1 EMERGENCY BUTTON ...................................................................................... 61
9.2 POSITIONING THE CHIN SUPPORT .............................................................................. 62
9.3 KEYBOARD - DESCRIPTION AND FUNCTIONS............................................................ 65
9.4 GRAPHICAL USER INTERFACE - DESCRIPTION AND FUNCTIONS .......................... 67
9.4.1 MAIN GUI AREA FUNCTIONS ............................................................................ 69
9.5 DIGITAL SENSOR ............................................................................................................ 70