Ziehm Vision

Ziehm Vision Description:

As the basic technology platform for all mobile imaging systems in the Ziehm Vision family, this C-arm suits the broadest spectrum of surgical applications. Thanks to its liquid cooling system, the Ziehm Vision is designed for continuous use even during longer procedures. Packed with leading-edge functionality, the Ziehm Vision sets a standard in mobile imaging and ensures minimized dose levels.

Ziehm Vision Highlights:

• 18” TFT monitors provide bright, high contrast image with a wide viewing angle.
• Intuitive workflow with synchronized TFT touchscreens on c-arm and monitor cart.
• High resolution thanks to a dynamic CCD camera with 1 k × 1 k technology.
• Easy integration into existing networks (with WLAN option).
• Active Cooling for continuous performance during lengthy, demanding procedures.
• Counter-balanced c-arm for simplified positioning.

Ziehm Vision Specifications

X-Ray Generator

• X-ray tube: stationary anode
• Single focus: 0.6 (IEC 336)
• Max. anode heat content: 45 kHU / 34 kJ
• Max. anode heat dissipation: 600 W
• Generator type:
  – Monoblock
  – 40 kHz high frequency
  – Microprocessor-controlled

Operating Values:

• Nominal output (100 kV): 2,000 W
• Maximum output: 2,020 W
• Pulsed Fluoroscopy:
  – kV range: 40-110 kV
  – mA range: 0.2.-20 mA
  – pulse width: 10-30 ms
  – pulse rate: 1, 2, 4, 8, 12.5, 25 pulses/s (50 Hz), 1, 2, 5, 10, 15, 30 pulses/s (60 Hz)
• Digital radiography (snapshot):
  – kV range: 40-100 kV
  – mA: up to 20 mA
• Radiography:
  – kV range: 40-110 kV
  – mA: up to 20 mA

Filtering:

• Total filtering: > 4 mm Al equivalent
• Additional filtering: 0.1 mm Cu

Output

• Pulsed fluoroscopy: 2,000 W
• Digital radiography (snapshot): 2,000 W
• Tube housing heat capacity:
  – powered by integrated Advanced Active Cooling and heat management system
  – 5 million HU system heat capacity
  – 400 W continuous dissipation and clinical performance

Collimator System:

• Collimator rotation: /- 90 Degrees
• Iris collimator:
  – 9″ II – 50-230 mm diameter
  – 12″ II – 50-310 mm diameter
• Slot collimator:
  – 9″ II – 50-230 mm diameter
  – 12″ II – 50-310 mm diameter
• Virtual collimation without radiation
• Type: cesium iodide
• DQE (IEC): 65%
• Conversion factor: 240 Cd
• Anti-scatter grid: Pb 8/40

Digital Video Camera:

• Active pixels: 1,048,576
• Camera matrix: 1024 x 1024 pixels
• Bandwidth of video signal: 20 MHz
• Bandwidth of video amplifier: 50 MHz
• Video (monitor): 1,125 lines
• Signal-to-noise ratio: 56 dB
• Control: ADR / AVR

9″ Image Intensifier:

• Central resolution 9″/6″/4.5″
• Contrast Ratio: 30:1

12″ Image Intensifier:

• Central resolution: 12″/9″ /6″
• Contrast Ratio: 22:1

Dimensions & Mechanics:

• Motor-driven vertical travel: 43cm
• Horizontal travel: 22 cm
• Orbital rotation:
  -90 Degrees / 45 Degrees (9″ II) 25 Degrees (12″ II)
• Angulation: /- 225 Degrees
• Swiveling (panning): /- 10 Degrees
• Source/image receptor distance: 97 cm
• C-Arm vertical free space: 76 cm
• C-Arm depth: 68 cm
• Width: 80 cm
• Length: 160 cm (9″ II) / 182 cm (12″ II)
• Height: 170 cm (9″ II) / 214 cm (12″ II)

Brakes:

• Patented steering & braking lever, with parallel movement of the mobile stand in all directions

MONITOR CART

Digital Image Processing

Real-Time Processing Functions:

• Recursive filter: 4 levels
• Stack filter (Last Image Hold): 5 levels
• Edge enhancement filer: 5 levels
• Windowing and step windowing
• Digital image rotation and reversal without radiation
• Grayscale inversion
• Digital shutters

Application-Oriented Anatomical Programs:

• Bone, Heart, Abdomen, Endo
• Soft, Large Patient
• Automatic motion detection, automatic metal correction

Image Acquisition:

• Autosave
• Cine loop with auto-playback (option)
  -sequential image storage and display:
  1-8/1-10 frames/s (50/60 Hz)
  1-12.5/1-15 frames/s (50/60 Hz)
  1-25/1-30 frames/s (50/60 Hz)
  -start, stop and replay rate controls

DSA Package (option):

• DSA real-time subtraction with re-masking capability
• MSA max. opacification sequence
• RSA roadmapping
• Pixel shift / landmarking
• Digital measurement functions (distance/angle)

Cine Loop:

• Sequential image storage and display
  – 1-8 frames/s (standard)
  – 12.5 and 25 frames/s (optional)
• Cine loops start, stop and replay rate controls

CO2 Package (option):

• Automatic image optimization when using negative contrast medium in DSA modes

Postprocessing Functions:

• Edge enhancement: 5 levels
• Zoom: 7 levels
• Image rotation
• Windowing
• Grayscale inversion
• Image cropping (digital shutters)

Digital Memory:

• Storage capacity: up to 55,000 images
• Memory matrix: 1024 x 1024 pixels
• Image matrix: 1024 x 1024 pixels
• Digital image processing: up to 32 bit
• Grayscale: 1024 shades of gray (10 bit)

Data Organization:

• Patient-based data management with 16-image mosaic display
• pre-registration via DICOM worklist
• Manual input or emergency registration

Monitors

Includes all the PMCare features plus:

• Vascular preset imaging profile
• Roadmapping
• Re-registration
• Variable landmarking
• Mask save/recall

User Interface

• TFT touchscreens on c-arm stand and monitor cart:
  – synchronized
  – intuitive icons for easy use
  – multi-lingual user interface

Archiving

• Video printer (optional): paper and film
• USB port:
  – storage capacity depends on storage medium
  – formats: DICOM, TIFF
  – downsized formats: DICOM, JPG
• DVD-RW drive:
  – 4.7 GB storage capacity
  – formats: DICOM, TIFF, Multimedia (AVI) downsized formats: DICOM, JPG
• DICOM viewer software DVD and USB device

Networking:

• Ziehm NetPro (optional):
  DICOM 3.0 interface (RJ45 or WLAN connection) for digital network integration
• “Primary Capture” mode
• Available DICOM Classes:
  – Storage class incl. multiframe capability and storage commitment
  – Print class
  – Media class
  – Worklist class incl. modality performed procedure step (MPPS)
  – Query/retrieve class
  – Verification class

Options

• Laser positioning device mounted on image intensifier and/or generator
• Dose area product with digital display
• Emergency stop button
• Video output for external documentation
• 4-pedal foot switch

Weight

• C-Arm mobile stand: 260 kg
• Monitor cart: 160 kg