Toshiba Activion 16 Product Data page 4

Multislice helical ct scanner
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SURE
Start
TM
:
– Continuous scan time: Max. 100 s
– Region of interest
(ROI):
– CT number
measurement interval: 0.083 s (12 measurements/s)
– Scan start delay time: Min. 3 s
– Display function:
• Specification of
reconstruction position: By entering the couch-top posi-
• Reconstruction method: TCOT reconstruction (applicable
• Reconstruction mode:
• The relationships between the slice thickness and the
imaging area scanned in 7.5 s (0.75 s, 10 rotations) in
the longitudinal direction are shown for helical pitches
10 and 20.
S
e
t t
n i
g
s
c i l
e
t
i h
k c
n
e
s s
0
5 .
m
m
1
m
m
*: The couch-top traveling distance per rotation is shown rela-
tive to the slice thickness.
Dynamic scan
• Scan time:
• Programmable time:
• Number of
programmable scans:
• Scan plan
– Scan interval:
Note: When a scanning mode with patient couch movement is
used, the minimum scan interval is limited by the time
required for movement.
• Scan start delay time:
• Scan rate:
4
Max. 3 ROIs
Mean CT number and elapsed
time
tion or using the scanogram
to 16-row acquisition data)
MUSCOT reconstruction (applic-
able to 4-row acquisition data)
Full image
Half image
Detail image
H
e
c i l
l a
p
c t i
* h
1
0
2
0
5
0
m
m
1
0
0
m
m
1
0
0
m
m
2
0
0
m
m
0.75, 1, 1.5 s/360°
Max. 1 hour
This refers to the maximum time
within which a series of scans is
performed following a predeter-
mined eXam Plan.
Max. 10
Max. time of one continuous
scan is 100 s.
Min. interval is 1 s
Setting is possible in increments
of 0.1 s in a scan interval of
more than 1 s.
Min. 0.5 s
Setting is possible in increments
of 0.1 s.
Max. 133 scans/100 s
(0.75-s scan, 133 rotations)
• Image reconstruction
– Number of images:
Max. 4 images/scan
– Image interval:
Reconstruction is possible in
increments of 0.1 s.
• Reconstruction time:
Min. 0.5 s
• Real-time reconstruction
time:
12 images/s (0.083 s/image)
(1 slice, 512 × 512 matrix)
X-ray generation
• X-ray exposure:
Continuous
• X-ray tube voltage:
80, 100, 120, and 135 kV
• X-ray tube current:
10 mA to 300 mA (260 mA for
135 kV) (in increments of 10 mA)
• X-ray tube heat capacity:4.0 MHU
• X-ray tube cooling rate: Max. 864 kHU/min
• Focal spot size
– IEC 60336: 1993
0.9 mm × 0.7 mm (small)
nominal :
1.4 mm × 1.4 mm (large)
X-ray detection
• Detection system:
Solid-state detectors
800 channels × 28 elements
• Main detector:
800 channels × 16 rows
• Data acquisition:
• Reference detector:
1 set
• View rate:
Max. 1,200 views/s
Data processing
• Reconstruction matrix: 512 × 512
• Picture element (pixel) size
– CT image:
Scan field
SS
* to
Pixel size
0.35
*: Depending on the Vari-Area or Zoom factor
– Scanogram:
Enlargement ratio (area)
Pixel size
• Reconstruction filter functions
– Functions for the abdomen with BHC
– Functions for the abdomen without BHC
– Functions for the brain with BHC
– Functions for the brain without BHC
– Functions for the inner ear and bone
– Functions for the lung
– Functions for high-resolution mode
– Functions for super-resolution mode for the inner ear,
bone, and lung
– Functions for maintenance
Unit: mm
S
M
L
LL
* to
* to
* to
* to
0.47
0.63
0.76
0.98
Unit: mm
Standard
LL
4.00
L
2.00
M
1.0
S
0.50

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