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MULTI-SLICE CT
Prepared by, Shonima
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MULTI-SLICE
• 4 slice since 1999
(GE, Siemens, Philips, Toshiba)• 8 slice since 2001
(GE)• 16 slice since 2002
(GE, Siemens, Philips, Toshiba)
Niranjan Ultrasound India pvt.Ltd
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MAIN PARTS Generator• High voltage generator 60 kw out put
X-ray tube• Rotating anode tube• Very high heat capacity
Detector• Solid state detector
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DIFFERENCE
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LIMITATIONS OF SINGLE SLICE CT
• Speed performance• MPR low accuracy• image quality and artifacts• More intravenous contrast
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ADVANTAGES
• Improved spatial resolution.• Motion artifacts reduced.• Patient breath hold is much less demanding.• Imaging larger z-axis volume in less time.• Less contrast medium required.• Improved accuracy in needle placement CT
fluoroscopy.
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ARTIFACTS IN MULTI-SLICE SCANNING
• Motion artifact reduced by faster scanning.• Stair-step artifacts in 3D reconstruction
reduced by using thinner slices.• Partial volume artifacts reduced by using
thinner slices.
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DETECTORS IN MULTI-SLICE
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NEW CT TECHNOLOGY
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MANUFACTURERS
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TECHNICAL SPECIFICATION
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DETECTOR DESIGN
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MAJOR IMPACT AREAS FOR MULTI-SLICE CT
• The multi-slice technique has added new possibilities for faster, better and safer evaluation of many different disease
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STELLAR DETECTOR• The stellar detector
provide ultra-thin slices.• very high spatial
resolution• It significantly reduces
electronic noise for uncompromised diagnostic outcome at a low dose.
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COST
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VIDEOS
• https://www.youtube.com/watch?v=7aJKIq3MXa8
• https://www.youtube.com/watch?v=NicQmZxWeRo
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THANK YOU
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