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• System management
– Warm-up
– Calibration data acquisition
– Picture retouching
– Operating environment setting function
– Examination record
• Display of exposure
dose:
3D color image processing
High-quality 3D images can be obtained rapidly by easy
operation.
• 3D surface rendering
– Clipping, texture or non-texture
• 3D volume rendering
– Maximum intensity projection (Max-IP)
– Minimum intensity projection (Min-IP)
– X-ray volume rendering
– Intensity volume rendering
– Shaded volume rendering (an arbitrary opacity curve
can be set)
• Display/processing function
Zooming, panning, measurement (distance, angle),
annotation, cutting, drilling
• Cine display
• MPR
3 orthogonal planes/oblique image
Curved MPR
• Easy accurate bone elimination function
• High resolution mode
Image transfer/conversion
• 1000BASE-T, 100BASE-TX, 10BASE-T
• Toshiba protocol
• DICOM storage SCU
• TIFF conversion
Filming
• Ethernet:
• Sheet editing function using virtual film
• T-mode:
Note: To use T-mode, the laser imager must support
2048 pixels x 2404 pixels for a 1 x 1 frame.
• Auto filming in eXam Plans
6
CTDI
(or CTDI
) /DLP/
vol
w
Geometric eff.
Toshiba protocol
DICOM PRINT SCU
Related information items such
as the patient name are dis-
played in the footer area using a
larger font.
IMAGE QUALITY
• Noise
– Standard deviation:
Less than 0.5%
– Scan parameters
· Tube voltage:
120 kV
· Tube current:
260 mA
· Scan time:
1.5 s
· Reconstruction
function:
FC70
· Slice thickness:
10 mm
· Scan field:
S
φ24 cm water
– Phantom:
• Spatial resolution:
14.5 lp/cm at MTF 2%
18 lp/cm at cutoff
(reference)
8.0 lp/cm at MTF 50%
(MTF calculation value)
– Scan parameters
· Tube voltage:
120 kV
· Tube current:
200 mA
· Scan time:
1 s
· Slice thickness:
2 mm
· Scan field:
S
· Reconstruction
function:
FC90
– Phantom:
IRIS QA phantom
• High contrast resolution
X-Y plane
– High-resolution
mode (FC90):
0.35 ± 0.05 mm
– Standard mode
(FC30):
0.55 ± 0.05 mm
– Scan parameters
· Tube voltage:
120 kV
· Tube current:
200 mA
· Scan time:
0.75 s
· Slice thickness:
2 mm
· Scan field:
S
– Phantom:
Toshiba standard
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