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DigitalDiagnostLong length imaging &Automatic Image Stitching
Diagnostic X-ray, Marketing
January 2012
2
Content
1. DigitalDiagnost benefits
2. Philips’ single focus approach
3. Show me howa. Full legs, 3 images with movable vertical stand
b. Full legs, 3 images with fixed vertical stand
c. Full spine, 2 images on table
4. Flexibility: vertical stand and table
5. The Eleva concept advantage
6. Reduced dose
7. Latest literature on dose reduction
8. Dedicated accessories
9. Flex room with swiveling table
10. Stitching and PCR integration
3
DigitalDiagnost benefitsfor long length imaging
• Available with all vertical stands and tables
• “Single focus” approach to minimize distortions
• Easy to perform- Adjust collimation, the system determines how many
images are necessary to acquire
• Low dose
• Fully automatic process- Images acquisition with motorized tube and detector
movements- Creation of the resulting composite image
o Manual correction possible
• No extra workstation- Everything done by the Eleva workspot- Includes dedicated orthopedic measurements
4
Automatic image stitchingPhilips’ single focus approach
Parallax error
Single focus
• More accurate overlaps areas• Minimizes stitching distortions
Multiple focus
• Big distortions in overlap areas
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Stitching with moveable vertical stand (VM)
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Single focus
Tube will rotate around its focal spot
Automatic image stitchingShow me how: acquisition principle
Movable vertical stand
Detector will move vertically from top to
bottom and stop to acquire 2 or 3 images
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Automatic image stitchingShow me how: a 3 steps procedure
Movable vertical stand
Position patient standing in front of the detector(patient stand recommended)
1
Adjust collimation light to get the required patient coverageThe system will automatically determine how many images need to be acquired.
2
3 Press exposure switch
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Automatic image stitchingShow me how: fully automatic acquisition
Movable vertical stand
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Automatic image stitchingShow me how: fully automatic acquisition
Movable vertical stand
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Automatic image stitchingShow me how: fully automatic acquisition
Movable vertical stand
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Automated detection of overlaps
Using ruler and anatomy Motion compensation No visible borders Equalizing contrast & brightness
Automatic image stitchingShow me how (3 images, full legs)
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Stitching with fixed vertical stand (VS)
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Single focus
Tube will rotate around its focal spot
Detector will move vertically from top to bottom and stop to acquire 2 or 3 images
Automatic image stitchingShow me how: acquisition principle
Fixed vertical stand
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Automatic image stitchingShow me how: a 3 steps procedure
Position patient standing in front of the detector(patient stand recommended)
1
Adjust collimation light to get the required patient coverage
The system will automatically determine how many images need to be acquired.
2
3 Press exposureswitch
Fixed vertical stand
15Fixed vertical stand
Automatic image stitchingShow me how: fully automatic acquisition
16Fixed vertical stand
Automatic image stitchingShow me how: fully automatic acquisition
17Fixed vertical stand
Automatic image stitchingShow me how: fully automatic acquisition
18
Automated detection of overlaps
Using ruler and anatomy Motion compensation No visible borders Equalizing contrast & brightness
Automatic image stitchingShow me how (3 images, full legs)
19
Stitching with side suspended table (TH-S)
(stitching on table is also possible with the traditional, central base, TH table)
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Single focus
Tube will rotate around its focal spot
Automatic image stitchingShow me how: acquisition principle
TH-S table
Detector will move horizontally from right to left and stop to acquire 2 images
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Automatic image stitchingShow me how: a 3 steps procedure
TH-S table
Position patient laying on the table
1
Adjust collimation light to get the required patient coverage
The system will automatically determine how many images need to be acquired.
2
3
Press exposure
switch
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Automatic image stitchingShow me how: fully automatic acquisition
TH-S table
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Automatic image stitchingShow me how: fully automatic acquisition
TH-S table
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Automatic image stitchingShow me how (2 images, full spine)
Automated detection of overlaps
Using ruler and anatomy Motion compensation No visible borders Equalizing contrast & brightness
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• Available with all vertical stands and tables- Demonstration video: long length exams performed in a Flex room, vertically and on table
• Key numbers
Place Max patient coverage
Max number of acquired images
Minimum SID required
Vertical stands 120 cm (47”) 3 260 cm (102”)
Tables 80 cm (31”) 2 160 cm (63”)
Automatic image stitchingFlexibility: at the vertical stand and at the table
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Automatic image stitchingThe Eleva concept advantage
• Thanks to Eleva, long length imaging is seamlessly integrated in you workflow
– Fully automatic motorized acquisition procedure– Fully automatic stitching algorithm
• Manual override possible
– UNIQUE image processing– No extra workstation
• Saves space and time
– Dedicated orthopedic measurements• Cobb’s angles, femoral height difference, segments,
angles, measurements calibration
• Fast & efficient procedure– Customized exposure & image processing presets– Performed with very few clicks (touches)
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Automatic image stitchingThe Eleva concept advantage
DigitalDiagnostStandard CR
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Automatic image stitchingTypically half the radiation dose
~ 32 µGy.m² ~ 12 µGy.m²
~ 4 µGy.m²
~ 16 µGy.m²
(typical Dose-Area-Product (DAP) values. Values may vary with patient and examination conditions)
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Automatic image stitchingLatest literature on low radiation dose & pediatrics with DigitalDiagnost
A big improvement in Digital Radiography
Philips DigitalDiagnost minimizes X-ray doses at Val d’Hebron Maternity/ Children’s Hospital, Barcelona, Spain.
(Customer testimonial, October 2010)
Link to document
Low-Dose Full-Spine Radiography with Digital Flat Panel Detector and Image Stitching System
When imaging scoliosis patients, a flat-panel detector combined with an image stitching system can substantially reduce the exposure dose.
(Study made on DigitalDiagnost, Germany, November 2011)
Link to document
Extra ruler for table
• Patient stand- More comfort and confidence
throughout the procedure
• Spine stitching filters- Minimize ghosting artifacts
with challenging patients
• Extra lead ruler, straps
• Comes with dedicated guide
Link to document
Automatic image stitchingDedicated accessories
Set of 2 spinefilters
Patient stand
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Automatic image stitchingFlex room swiveling table and stitching
• In small rooms, a swiveling table can be a great complement to stitching
• Table is swiveled during stitching procedure
• Gives more space and avoids the tabletop being in X-ray beam
• Improves
Access to the patientAccess to the system Image quality
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Automatic image stitching with PCREven more long length imaging flexibility with PCR integration
• With PCR integration & stitching together, automatic stitching is also possible on DigitalDiagnost with PCR “long view” cassettes
- 2 or 3 imaging plates per cassette- Plates images are automatically stitched together after cassette reading- Several cassette sizes available to fit dedicated needs
• Same stitching algorithm & UNIQUE image processing- Comparable image impression with DR
• Quicker acquisition procedure than DR stitching- Only 1 exposure shot
• Alternative to DR stitching for some particular situations- Agitated patients- Patients who cannot stand for more than a few seconds- Trauma
Example: a 24 x 57 cm or 10 x 23” cassette allows to X-ray a broken
femur with both knee & hip joins or a child spine
Long viewcassette size
# of platesin cassette
35 x 124 cm (14 x 49”) 3
35 x 102 cm (14 x 40”) 3
35 x 84 cm (14 x 33”) 2
24 x 57 cm 2
10 x 23” 2
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