Toshiba Activion 16 Product Data page 5

• Image reconstruction time
– CT scan: Min. 0.17 s
– Scanoscopy: Reconstructed and displayed
simultaneously with scanning
(real-time reconstruction)
• Data processing unit
– Central processing
unit: 32-bit processor x 2
– Memory size: 3 Gbytes
– Magnetic disk unit: Raw data, 144 Gbytes
Image data, 73 Gbytes
Data storage
• Magnetic disk
– Raw data: Max. 3,600 rotations
(0.75-s helical scan)
– Image data: Max. 100,000 (per each console)
• CD-R/DVD drive
– CD-R
· Storage capacity: 650 Mbytes (formatted)
· Media: CD-R disk (in accordance with
Orange Book part II)
· Data format: DICOM format (in conformance
with DICOM standards PS3.10)
· Image data: Max. 1,000 images (assuming
that images [512 Kbytes/image]
are recorded on a disk at one
time)
– DVD
· Storage capacity: 9.4 Gbytes (double-sided)
· Media: DVD-RAM
· Image data: Max. 16,000 images (for a dou-
ble-sided disk, DICOM format)
· Raw data: Max. 120 rotations (for a single-
sided disk, 0.75-s scan)
Image display
• Display monitor: 19-inch color LCD
Size of display area comparable
to a 21-inch CRT monitor
1,280 × 1,024
• Monitor matrix:
1,024 × 1,024 (max.)
• Image matrix:
• CT number
– Display range: From -1,536 to +8,191
Note: The CT number measurement range is from -32,768 to
+32,767.
• Window width/level: Continuously variable
(adjustable at variable speed)
• Preset window: Three types of window settings
can be preset for each image.
• Window types: Linear, non-linear (6 user-pro-
grammable), and double win-
dows
• Image retrieval
– Method: On-screen menus and keyboard
– Mode: Image, series, and patient
• Autoview function: Software control, function key
• Multi-frame display: Reduction/cut-off display, ROI
processing
• Inset scanogram display
• Selective related information display
• Cine display
– Image display speed: Variable
• Scanogram/CT image
switching: Show scano line, zoom, hide
scano line
• Slice-feed playback
(CineView): High-speed image feeding
using the mouse or keyboard
Image processing
• Scanogram processing
– Slice position display (display of planned slice,
preset slice, and last scanned slice)
– Anatomical scale (display of position, relative to select-
ed zero position)
– Slice position setting
– Enlargement (4× for L or LL size)
• CT image processing
– ROI setting and processing
· ROI shape: Point, rectangular, polygonal,
elliptical, irregular
· ROI processing: Mean value, standard deviation,
area, number of pixels, maxi-
mum value, minimum value
· ROI display: Ten ROIs can be displayed on
an image.
· ROI control: Size, position, rotation
– Measurement of distance and angle between two points
– Profile (oblique profile also available)
– Histogram
– CT number display
– Mark display (grid display, scale display)
– Volume calculation
– Enlargement, reduction, panning
– Addition/subtraction between images
– Band display (non-linear windowing)
– Comment and arrow insertion
– Top/bottom, right/left, black/white reversal of image
– Image filtering
– Image rotation (arbitrary rotation)
– Screen save
– High-speed axial interpolation
– MultiView (Auto MPR)
– Quantum denoising software (QDS)
TM
– Boost3D
– Z-sharpening
• Raw data processing
– Zooming reconstruction
– Stack reconstruction
– Protect/Unprotect
– Half-view reconstruction of helical scan raw data
– Play/Reverse reconstruction (Helical & Dynamic scan)
– Priority reassignment in reconstruction queue
MPDCT0290EA
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