Technical Aspects of Cardiac CT - ImPACT CT Scanner Evaluation ...

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Multi-slice CT - coverage 10 20 40 80 160 mm Harefield Cardiac Course z-axis
Scanner rotation speeds 0.3 Second rot timea.MPG Harefield Cardiac Course Typical fastest rotation speeds < 0.5 sec/rot (0.5, 0.4, 0.3, 0.27 sec/rot)
Page 1 and 2: Technical Aspects of Cardiac CT S.
Page 3 and 4: Cardiac CT • Godfrey Hounsfield,
Page 5 and 6: Applications of cardiac CT • Calc
Page 7 and 8: Modern multi-slice scanners • 199
Page 9 and 10: The scanner Y Y X X Z Z Typical det
Page 11: Beam width, detectors and slices
Page 15 and 16: Helical (spiral) scanning • Conti
Page 17 and 18: Helical (spiral) scanning - pitch p
Page 19 and 20: Harefield Cardiac Course
Page 21 and 22: • Analytical techniques Image rec
Page 23 and 24: • Volume set of data Image presen
Page 25 and 26: • Heart rate The heart - Average
Page 27 and 28: Cardiac CT - ECG phases • To ‘f
Page 29 and 30: Cardiac CT - ECG phases • 2 defin
Page 31 and 32: Cardiac CT - ECG phases • For hig
Page 33 and 34: Cardiac CT - scan modes Scan Axial
Page 35 and 36: Cardiac CT- axial scanning • Imag
Page 37 and 38: Cardiac CT - axial scanning with pa
Page 39 and 40: Cardiac CT - helical scanning • S
Page 41 and 42: 0% 5% 10% 15% 20% 25% 30% 35% 40% 4
Page 43 and 44: Helical cardiac CT- ECG dose modula
Page 45 and 46: Helical cardiac CT - pitch • Gant
Page 47 and 48: Helical cardiac CT - pitch • Requ
Page 49 and 50: Technical Aspects of Cardiac CT •
Page 51 and 52: Techniques to improve temporal reso
Page 53 and 54: Multi-sector reconstruction • Use
Page 55 and 56: Multi-sector reconstruction • Two
Page 57 and 58: Multi-sector reconstruction 2 secto
Page 59 and 60: Multi-sector reconstruction - issue
Page 61 and 62: Multi-sector reconstruction - issue
Page 63 and 64:
Two tubes - Siemens Dual Source •
Page 65 and 66:
Challenges in imaging the heart - v
Page 67 and 68:
Volume coverage • Scanner detecto
Page 69 and 70:
Volume coverage • Motion needs to
Page 71 and 72:
• Heart rate The heart - Average
Page 73 and 74:
Volume coverage - axial scan • Nu
Page 75 and 76:
Philips Brilliance iCT 8 cm coverag
Page 77 and 78:
Volume coverage - overlap • Small
Page 79 and 80:
Volume coverage - single beat • S
Page 81 and 82:
Volume coverage - single beat high
Page 83 and 84:
• Improved temporal resolution -
Page 85 and 86:
Image quality issues - spatial reso
Page 87 and 88:
Double sampling - Z-axis • 32 det
Page 89 and 90:
Spatial resolution - Z-axis • Min
Page 91 and 92:
Spatial resolution - display • Op
Page 93 and 94:
Cardiac CT - scan modes Scanning mo
Page 95 and 96:
What do you need on a cardiac scann
Page 97 and 98:
• This talk and others - www.impa
Page 99 and 100:
Technical Aspects of Cardiac CT S.
Page 101:
Cardiac scanner spatial resolution
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