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Dual Detector Cardiac Dedicated Gamma Camera

for wide variety of cardiac imaging types, including static, dynamic, multigated planar, tomographic and gated tomographic nuclear imaging procedures

is an ultra-compact cardiac-optimized nuclear imaging system. It is comprised of two detectors in 90o geometry mounted inside a C-shaped gantry, a compact 4-axis imaging table and a dedicated acquisition station.

Cardio-C can be networked to Processing & Review Station which features a comprehensive set of Cardiac applications.

• Intrinsic spatial resolution: 2.8mm
• UFOV: 370x210 mm
• Open, C-shaped tomographic gantry:
  accomodates patient comfort ease and speed of patient positioning
• Internally mounted dual detectors:
  enhance patient safety
• Compact and simple design:
  minimal footprint and small weight
• Full coverage of cardiac applications
• High patient throughput
• Easy installation:
  up and running fast, minimal scheduling lead times

Operator convenience

• Operational simplicity: no need for gantry control commands, nor time-consuming setup.
• Easy patient setup by the gantry-side with effortless table swiveling to scanning position.
• Unmatched space efficiency with 2.6 m x 2.6 m (8'7" x 8'7") system footprint and gantry-mounted operator console

Patient Comfort

• Concealed detectors motion (inside the gantry) enhance patient perception of comfort and safety
• Ergonomic table design with integrated leg, head and arm support reduces patient motion and enhance patient comfort

• Contact Imaging
  • dramatically increased spatial resolution
  • dramatically decreased motion artifacts
  • enhanced safety
  • less intimidating for the patient
• Hidden detectors
  • open, compact gantry
  • no visible moving parts
  • exceptional COR
• 4-axis patient table
  • 3-axis motion with joystick
  • effortless patient (self-) positioning
  • unique swivel of table (90o)

Each detectors include:

• 33 circular, 60 mm (2.4") and 4 circular, 38 mm (1.5") PMTs per detector
• UFOV: 370 mm x 210 mm
• Crystal thickness: 6.35 mm (1/4") - optimal for low energy imaging
• Energy range: 40-200 keV

Detector Positioning

• The detectors are positioned at 90o geometry, optimal for Cardiac SPECT scanning procedures
• Detectors scanning motion is performed inside the gantry
• Top simplicity: SPECT Scanning is performed along a fixed radius: 248 mm (9.8")

Detector Design Highlights

• High quantum efficiency PMTs feature enhanced energy resolution, long term stability and improved magnetic shielding
• Enhanced intrinsic spatial resolution due to a light-guide-free detector design
• Computerized digital auto tuning for fast adjustment and excellent stability HV module provides extended long-term stability
• Minimal dead space between the detectors and the patient for higher resolution scans

Measured per NU-1, 1994 using Tc-99m where applicable.

The Cardio-C accommodates the following optional set of two high-precision collimators for Nuclear Cardiology applications:

• LEGP collimator for high sensitivity cardiac SPECT scan
• LEHR collimator for high resolution cardiac SPECT scan

Collimators weight: 12-15 kg (26-33 lbs) each.

Open C-shaped tomographic gantry accommodates patient comfort - ease and speed of patient positioning

Integrated in the highest level: patient imaging table and console are integrated with the gantry.

• Small footprint enables installation in a room as small as 2.6 m x 2.6 m (8'7" x 8'7")
• Concealed detectors motion: Absence of visible moving parts serves to reduce patients anxiety and enhance their comfort level
• Open gantry design facilitate patient setup and access
• Smart handles facilitate patient loading
• Emergency stop buttons enhance operational safety
• Robotic cables in energy chain cable carriers extend the service life of the camera
• The gantry weighs less than 550 kg including the detectors and a collimator set, minimizing site preparation requirements
• No floor preparation needed as no anchor points are used to attach the gantry to floor
• Minimal number of parts in the assembly inherently increases reliability

• The patient table is located at the side of the gantry facilitating unrestricted patient access.
• Once activated, the tables unique swivel mechanism gently transports the patient to the gantry for the scanning procedure.
• Compact four-axis table designed to maximize detectors-to-patient proximity during scan.
• Low attenuation (5% at 140 keV)
• Ergonomic tabletop made of a 2.5mm thin, strong aluminium alloy.
• Supporting handles maximize patient comfort and facilitate patient setup.
• Easy patient positioning with a special joystick situated at the patient's bed end. \
• Unique swiveling table is locked in scanning position by a strong electromagnet
• Maximum 200 kg (440 lbs) patient weight
• Maximum 200 cm (6'7") patient length (with leg support)

The acquisition system provides basic acquisition types with predefined default parameters and clinical acquisition protocols comprised of multiple acquisition types in a predefined sequence which come with default parameters.

Acquisition Station Hardware

• PC acquisition station attached to the gantry; driven by Windows™ XP Professional Operating System
• The acquisition control monitor and keyboard are integrated in the gantry structure
• Five channel AD acquisition card per head simultaneously sampling the signals at the rate of 40 MHz
• 1024 multichannel analyzer energy channels (40-400 keV), with digitized picture binned up to 4096 x 4096 image pixels

Features

• Cardio-C Acquisition includes the following fixed elements:
  • Basic acquisition types
  • Pre-defined Clinical protocols
• In addition Cardio-C features User-Configurable protocols
• Digital "on-the-fly" linearity and energy corrections for optimized uniformity
• 2562 resolution energy and spatial correction matrix (interpolated to 32,7682) for improved accuracy.
• Operator selectable energy correction sets for different isotope combinations
• Energy spectrum histogram display ensures accurate photo-peaking for each isotope(s)
• Up to three energy windows per dataset with user selectable widths and offsets
• Up to four separate energy sets acquired per detector
• 256 Megabytes of framing memory per detector

Multiple digital corrections

• On-line direct addressing linearity correction with FOV-expanding technology
• On-line energy correction
• Uniformity correction without count rate loss
• Pile-up recovery and resolution enhancing technology for high count rates

Acquisition Types

• Static
• Fast dynamic
• Multigated
  • On-line irregular beat rejection
  • User-selectable R-R window
• Tomography
  • "Step and shoot" Acquisition mode
  • User defined number of projection from 4 to 192
• Gated Tomography
  • "Step and shoot" Acquisition mode
  • User defined number of projection from 4 to 192

Typical minimum room layout - Not For Construction. Click on the image to enlarge it.