Download Multi Slice Spiral CT Scanner

Multi Slice Spiral CT Scanner-128 Slice
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Purchaser’s Specifications
Multi Slice Spiral CT Scanner-128 Slice
Manufacturer
Brand
Type / Model
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Description of Function
CT (computed tomography), sometimes called CAT scan, uses special x-ray equipment to
obtain image data from different angles around the body and then uses computer processing of
the information to show a cross-section of body tissues and organs.
CT imaging is particularly useful because it can show several types of tissue—lung, bone, soft
tissue and blood vessels—with great clarity. Using specialized equipment and expertise to create
and interpret CT scans of the body, radiologists can more easily diagnose problems such as
cancers, cardiovascular disease, infectious disease, trauma and musculoskeletal disorders.
The multi-slice CT scanner refers to a special CT system equipped with a multiple-row detector
array to simultaneously collect data at different slice locations.
Operational Requirements
Multi-Slice (128 Slices) Spiral CT Scanner for high resolution whole body scanning including
Cardiac, Vascular applications. The model must be latest (shall mention year of manufacturing),
state of art technology. The equipment must be capable of acquiring 128 slices per 360 deg.
rotation.
Latest slip ring technology. True isotropic volume acquisition and submillimetric resolution.
It shall be DICOM ready.
It shall integrate and interface with PACS.
Upgradability to higher level of slices possible.
System Configuration
Spiral CT Mainframe with Gantry, X-Ray Tube and Generator, Topogram, Image
Reconstruction, Image evaluation tools, post processing tools, as specified in the technical
specifications.
Main Console with monitor.
Additional Console with monitor.
Patient Table.
Non Invasive Monitor with complete accessories.
Defibrillator Monitor/ Recorder with complete accessories.
Dry view Laser Camera.
Laser Colour Printer.
Anaesthesia Induction System with all accessories.
Pressure Injector.
Technical Specifications
Gantry:
 Aperture of 70 cm or more.
 It must have control panel on either side.
 It must have light for positioning.
 It must have FOV of at least 50cm or more.
 Tilt remote tilt of +/- 30 degrees or more from console.
 Entire range of rotation times for full 360 degree shall be 0.35 seconds or less for
excellent cardiac acquisition & whole body applications.
 Remote controlled tilt from operator table should be possible.
Detector:
 Data acquisition system capable of acquiring 128 slices per 360 deg. rotation
 System must have 64 or more rows of detectors.
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Purchaser’s Specifications
 Coverage in Z-axis: > 40 mm or more.
Scan Time:
Complete 360 deg. scan must be performed at 0.40 sec. or less.
X-ray Generator:
 The Generator must be of high frequency type and having adequate output to facilitate
spirals of at least 100 sec duration.
 The system X-ray power must not be less than 100 KW.
 The mA range available must be between 10 to 800 mA with increments in steps of not
more than 10 mA.
X-Ray Tube:
 Tube current: 10-800mA.
 Real Time mA modulation for dose regulation for both Z-axis and angular dose
modulation.
 Tube Voltage: 80-140 KV or more.
 Anode heat storage capacity 7MHU.
 Anode temperature monitoring system.
 The X- ray tube shall have a cooling rate of not less than 1000 KHU/min.
 Filter and beam limiting devices. The Al equivalent (at least 5mm) and other specific
features to reduce radiation dose to the patient must be specified.
 Dual focal spot, approx. 0.7mm x 1mm.
 Warranty of tube: Comprehensive warranty of X-ray tube for 2 years irrespective of
number of scans.
Area of Coverage:
 High resolution (0.4 mm or better) coverage along Z axis must be 20 mm or more per
rotation.
Resolution
 High Contrast: 20 LP/cm. or better for complete FOV (specify the phantom used, scan
time, mA, scan field, dose, slice and MTF).
 Low contrast for CATPHAN: Clearly specify the low contrast resolution. Also specify
the phantom used scan time, mA, filter for image reconstruction, scan, field, dose, slice.
 Please specify the temporal and visual high resolution.
Single Source Dual Energy capability:
The system must have dual energy capability and the following applications shall be available.
 Differentiation of brain haemorrhage from contrast enhancement
 Mono-energetic imaging for beam hardening artifact elimination, contrast augmentation
& tissue visualization with Mono-energetic images.
 Characterization of Renal Calculi & differentiation of Uric Acid and Calcified Stones.
 Characterization of Gout - Application for visualizing deposits of uric acid crystals.
Patient Table:
 Maximum load>/= 200Kg with 1mm positioning accuracy.
 Table speed horizontal=>100 mm/sec.
 Vertical table travel: 50cm.
 Longitudinal Scan Range: 100-1600 mm or better.
 Facility of positioning aid for horizontal Isocentric positioning of the patient.
 Carbon fibre table top.
 Minimum table top height must not be more than 55cm from the floor level for easy
transportation.
Spiral CT:
 Must be 3rd /4th Generation CT.
 Min. slice thickness=/<0.7mm.
 Max slice thickness>/=10 mm.
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Purchaser’s Specifications
 Slice increment.-specify scan and selectable slice thickness.
 Pitch Factor (volume pitch): variable between 0.5 sec to 1.5 or more and it must be user
selectable. Bidder shall specify all possible pitch selections.
 Single continuous spiral on time >/= 100 sec.
 Gapless spiral length: 150cm or more.
 Must optimize radiation dose and resolution for each selection.
 Bolus Triggered Spiral acquisition must be possible.
Topogram:
 Length and width: Bidder shall specify range.
 Views: Frontal & lateral views.
 Must be able to interrupt acquisitions manually once the desired anatomy is obtained.
Data Acquisition System:
 Detector: Capable of acquiring 128 slices per 360 deg. of rotation through latest flying
focal spot technology or equivalent.
 Geometric and absorption efficiency of detectors in %.
 Inbuilt mechanism for adapting the tube current during each scan this must enable
radiation dosage reduction where body part thickness is less.
 Must have dose reduction techniques, Iterative Reconstruction (IR) or equivalent and
may reduce the patient does up to 75%. Bidder shall specify the patient dose reduction
techniques.
 Acquisition of cardiac images with ECG gating (prospective & retrospective) shall be
possible.
 Inbuilt paediatric protocols.
Image Reconstruction: Real time reconstruction speed: 20 images per second or more at 512 x 512 matrix.
 Display matrix: 1024 x 1024 or more.
 Reconstructed slice thickness range shall be less than one mm (<1) to 10mm.
 Specify scan field and reconstruction field.
Main Console with latest hardware, and software with all latest application software:
 It must have processor with configuration of 16 GB RAM, 1TB hard drive. The system
shall have all functions menu driven. All applications like scanning, image
reconstruction, filming, MPR, CT Angiography, maximum intensity projection MIP, 3D
Volume rendering technique, Virtual Endoscopy must be possible from the console.
The image reconstruction time must be 10 images/second or more in 512 x 512 matrix.
 Monitor 26” or more high resolution flat medical grade LCD monitor with a display on
1024x1024 matrix or more.
 Reconstructed slice thickness: 1mm- 10mm.freely selectable.
 There must be facility to read and write CD/DVD on main console.
 Raw Data storage with 1TB hard disc having more than 100,000 image storing capacity
in 512 x512 format.
 Shall be able to simultaneously transfer image to workstation while performing scan.
 With DICOM 3.0 interface for transfer, print, receive, archive, retrieve and work list.
Helical Application:
 Scan length of at least 100cm. in a single gapless Spiral/Helical Scan with a free pitch
selection. Types of helical must be mentioned.
 Facility to monitor contrast enhancement & automatically initiate scanning.
 Acquisition of Cardiac images with ECG Gating (Prospective & Retrospective Gating).
Specify the temporal resolution achieved using 1, 2 or 4 sections of consecutive cardiac
cycle to reconstruct each axial image.
 Real time X-ray dose reduction which combines both Z axis and angular tube current
modulation to adjust the dose to the size and shape of individual. It must be possible to
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Purchaser’s Specifications
modulate the mA with ECG signals.
Post Processing Workstation (Satellite Console):
Workstation with CPU, 26” or more LCD Monitor. Satellite console must have all the features
as of main console (swappable). Image Evaluation Software and following post Processing
facility:
 Calcium scoring, cardiac LV, RV analysis, cardiac scoring & reporting, CT coronary
analysis software, cardiac comprehensive report.
 Software for brain perfusion and abdominal tumour perfusion studies.
 Complete virtual endoscopy package.
 Software for stenosis analysis.
 Software for dental planning.
 Facility for direct 3D image formatting in any plane during acquisition as planned on
scout images.
 Osteo software.
Additional fully functional independent workstation of similar capability as satellite workstation
shall be installed in Radiology department.
Monitors for each consoles):
 Resolution: 1280 x 1240.
 Pixel Size < 0.3 mm.
 Flat screen medical grade LCD type of at least 26” with fast image refresh rate and
preferably instantaneous and flicker free.
 Must be non-interlaced and progressive display type & sturdy.
Bidder shall specify the number of total monitors being supplied.
Consoles Common Feature:
 The two sets of workstation must be interconnected by ISDN lines (to be provided by
the vendor) for two way transfer of images and reports.
 Spatial alignment and visualization of two different data sets of one patient generated on
different modalities or with different acquisition time.
 Post Processing Software: Perfusion CT, VRT, MIP, SSD, Image Fusion, Vessel
segmentation, Virtual Endoscopy software to be provided on both the workstation.
 Cine display must be available, both interactive and automatic, and must have a
minimum image refresh rates of 8-10/ sec.
 Window width and centre must be freely selectable.
 Patient online Registration, pre-registration facility and transfer of information from
HIS/RIS via DICOM must be possible.
Image Evaluation Tools:
 Parallel evaluation of multiple ROI in circle, irregular and polygonal forms.
 Statistical Evaluation for area/ volume, S.D, Mean/Max and Histograms.
 Advanced cardiac packages with ECG gating for cardiac and vascular evaluation in
trauma patients.
 Profile cuts: horizontal, vertical and oblique views.
 Distance & angle measurement, freely selectable positioning of co-ordinate system, grid
and image annotation.
 Dynamic evaluation of contrast enhancement in organs and tissues, calculation of time
density curves, peak enhancement images and time-to-peak images.
Post Processing Tools:
 2-D, including image zoom and pan, image manipulations, including averaging, reversal
of grey-scale values, and mirroring; image filter functions, including advanced
smoothing algorithm and advanced bone correction.
 Real-time multi-planar reconstruction (MPR) of secondary views, with viewing
perspectives in all planes including curved & orthogonal MPR.
 CT angiography, MIP, MinlP, SSD, VRT and other advanced 3D applications and
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Purchaser’s Specifications
colour coding for different tissues.
 Spatial alignment and visualisation of two different data sets of one patient generated on
different modalities or with different acquisition times.
 Perfusion CT for study of brain, liver, kidney, pancreas etc.
 Advance vessel analysis with plaque visualization.
 Auto bone removal.
 Volume measurements.
 Lung nodule analysis.
 Colonography.
 Image fusion of morphological data obtained on CT, MR& PET data.
 Neuro DSA.
 Coronary tree analysis: Automated 3D processing of coronary arteries, calcium scoring,
stent analysis, LV analysis.
 Multi-modality automatic tumour tracking & automatic measurements in RECIST,
WHO, Volume & Choi criteria calculation.
Patient communication system:
 An integrated intercom and Automated Patient Instruction System (API) must be
provided
Image Documentation
A. Dry View Imaging Camera:
 Dry Laser Technology.
 Resolution: 16 bits/ 600 dpi.
 Supports 5 multiple film sizes one of them must be 17”x14”.
 Must have 3 or more online film sizes.
 Throughput of 180 films or more per hour.
 DICOM 3.0 compatible.
 Camera must print on a multi-format mode.
B. State of the art Laser Colour Printer:
 Colour dry printer for printing film quality images on plain paper.
 DICOM compliant.
 Laser/Thermal Dye Sublimation Technology for B/W or colour printing.
 Resolution: 1200x1200 dpi.
 Speed: more than 20 ppm.
Connectivity and Archival:
 DlCOM connectivity must be optimised for networking with other imaging systems.
 DICOM converters for linking the camera with other imaging systems of the
department must be provided, if required separately. It must have sufficient memory to
store images from the CT as well as other system connected to it.
 Filming parallel to other activities, including independent scanning, documentation and
post-processing and configurable image text.
 Archiving: DVD/CD writer must be provided for archival. Specify minimum number of
uncompressed and compressed images that it can store per disc. Option of viewing these
discs on any PC without DICOM viewer must be available.
Non Invasive Monitor:
 Portable and Light weight preferably <10kg
 Modular with 12 inch multi-colour TFT display.
 Monitoring parameters: ECG, respiration, NIBP, SpO2 and temperature.
 Digital and 6 waves / traces display.
 Trends up to 24 hours.
 60 minutes or more battery back-up.
 Convenient handle for carrying the same.
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Purchaser’s Specifications
 Able to fix with bed/trolley.
Monitor cum Defibrillator with Recorder:
 Biphasic, latest model, with auto and manual mode. Manual selection up to 200 J.
 Must be mains and battery operated, with charging indicator.
 Must be able to deliver 30 shocks with fully charged battery.
 Must have true 1-2-3 Color-coded operations.
 Must have inbuilt thermal recorder.
 Must have automatic lead switching to see patient ECG through paddles or leads.
 Shall measure chest impedance and must be able to compensate.
 Must be provided with Adult and Paediatric external paddles.
 Must have both Synchronous and Asynchronous mode.
 The charging time to highest energy level must be less than 5 seconds.
 Disposable defibrillator pads – 10 nos. with each machine
 Must have external pacemaker facility.
State of the art General Anaesthesia Induction System:
 Anaesthesia gas delivery system for delivery of oxygen, nitrous oxide and medical air
with pressure gauges.
 Circle absorber system.
 Precision maintenance free vaporiser for halothane, Isoflurane/ Sevoflurane.
 Anaesthesia ventilator: Must be able to set tidal volume, respiratory rate and I:E ratio.
 Ventilator must have audible alarms for ventilator failure, low oxygen supply pressure,
inadequate volume delivery, disconnection alarm, and power supply failure.
 Monitoring system to monitor Anaesthetic gases, ECG, EtCO2, Pulse Oxymeter and
airway pressure, NIBP, 2IBP , rectal/&skin temperature.
Pressure Injector:
 It shall be dual head pressure injector preferably syringe less pressure injector.
 Flow rate: 0.1-10 ml/sec, Volume: 1 ml to syringe capacity, programmable pressure
limit of 325 psi with 200 ml syringe, syringes 200 ml disposable sterile syringes, with
minimum of 30 protocols. Syringe heater range 35 0C+/- 5 0C. Must be provided with
head mounting device and integral IV pole.
 Unit will be provided with display monitor to provide pressure monitor graph, Flow
profile, stop watch feature, scan display, multiphase capability and protocol locking
capabilities.
Image Transfer, Archiving & Networking:
Option 1.
 Vendor must provide image and report distribution software with all the necessary
hardware to connect terminals for image viewing. This system must be able to provide
on-line accessibility of processed image data in six
 OT's, ICU, CCU, and radiology conference room at trauma centre etc. The server
hardware must consist of Dual CPU 5 GHz or more processor, 5GB RAM, 500 GB
HDD, DVD, CD R/W, 19" or more fiat LCD monitor. Each viewing terminal must have
a PC with 5 GHz processor, 5GB RAM, 500 GB HDD, CD/DVD, combo drive, 19”or
more flat LCD monitor. It shall have latest hardware for the server.
Option 2.
 Image archiving server with facility for long term storage of data base must be
provided. Archival Solution of processed images & reports on line & of OT line must
be clearly stated. It must be possible to handle & access one month image data on line
without accessing the accessory storage, presuming 50 cases per day.
 The archive server must consist of Dual CPU 5 GHz processor or more, 5 GB RAM,
500 GB HOD, DVD, CD R/W, I9' or more flat LCD monitor. The archive server must
be connected to RAID/Jukebox/ Extended storage device of required capacity.
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Purchaser’s Specifications
Future Upgrading Requirements:
A free, comprehensive software update (compatible with the existing platform) with latest
hardware having higher capacity must be provided for at least 10 years.
Accessories, spares and consumables
Main Console with monitors.
Additional Console with monitors.
DVD/CD Archiving with 1000 compatible DVDs.
Patient Table – 01 no.
Non Invasive Monitor with the following accessories: 01 unit
 ECG /Resp.: 5 leads reusable ECG cable with Clip – 2 set per monitor and 10 leads
reusable ECG cable with clip – 1set per monitor.
 NIBP: Adult cuff -2 nos. per monitor and two sizes of Paediatric Cuffs –one per
monitor (Complete sets).
 SpO2: Adult SpO2 sensor with cable – two nos. per monitor and paediatric SpO2
Sensors – 01 no. per monitor.
 IBP: Include 04 nos. per monitor of reusable pressure transducer with bracket, holder
and 100 nos. disposable domes per monitor.
 Temperature: Central temperature Probe – 02 no. per monitor and Skin temperature
probe – 01 no. per monitor.
Defibrillator Monitor/ Recorder with the following accessories- 01 unit
 Adult and paediatric paddle – 01 each.
 Disposable pads – 100 each.
 Reusable 5 leads ECG cable with reusable ECG electrodes (Adult & Paediatric) – 01
each.
 5 leads disposable ECG electrodes with ECG cable (Adult & Paediatric) – 50 each.
Dry view Laser Camera – 01 no.
Laser Colour Printer – 01 no.
Anaesthesia Induction System with all accessories – 01 set.
Pressure Injector (with -1000 syringes) – 01 box.
Collapsible wheel chair with rubberized swivel wheels – 01 no.
Standard Patient positioning accessories and restraining devices – 02 set.
Light weight vinyl Lead Aprons of 0.5 mm lead equivalence – 03 nos.
Lead Glass 100cm X 150 cm of 2mm Lead equivalence with suitable frame – 01 unit.
Laryngoscopes adult and paediatric sizes – 01 set.
Endotracheal tubes of adult and paediatric sizes – 10 each.
Two LED based view boxes with adjustable illumination to view 3 films of 14” x 17” in each
view box.
Coronal head holder: 1 unit
Thyroid collars: 2 nos.
Gonadal shields: Adult & paediatric (male & female) 2 each
Lead apron hanger(for hanging two premium lead aprons): 1 no.
Shall come with test phantoms and QA tools.
All standard accessories, consumables and parts required to operate the equipment, including all
standard tools and cleaning and lubrication materials, to be included in the offer. Bidders must
specify the quantity of every item included in their offer (including items not specified above).
Operating Environment
The system offered shall be designed to operate normally under the conditions of the purchaser's
country. The conditions include Power Supply, Climate, Temperature, Humidity, etc.
Power supply: 380-415VAC 3 phase 50Hz fitted with appropriate plug for CT X-ray parts and
220 – 240 VAC, Single phase 50 Hz, fitted with appropriate plug for other units. The power
cable must be at least 3 metres in length.
Suitable Servo controlled Stabilizer/CVT as applicable.
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Purchaser’s Specifications
UPS of at least 30 minutes operation with suitable rating shall be supplied for the complete
system including computer system, anaesthesia delivery system, monitor and defibrillator.
Standards and Safety Requirements
Must submit ISO 13485:2003/AC: 2007 AND
CE (93/42 EEC Directives) or USFDA approved product certificate.
Shall meet IEC-60601-1-2:2001General Requirements of Safety for Electromagnetic
Compatibility or must comply with 89/366/EEC; EMC directive
Shall meet IEC-60601-2-44 or EN-60601-2-445 Medical Electrical Equipment - PART 2-44:
Particular Requirements for the Safety of X-Ray Equipment for Computed Tomography.
User Training
The Supplier shall conduct user training for this equipment to enable operators to use the
equipment properly. The training shall include the use of all operational functions of the
equipment, as well as routine checks and maintenance expected by users.
One week on-site training by manufacturers' application specialist and service engineer for
training of medical and technical staffs to familiarize in proper operation and basic maintenance
and troubleshooting.
On line support for service and software with remote access for manufacturer to up load
software and trouble shoot.
Warranty
Comprehensive warranty for 2 years after acceptance.
Maintenance Service During Warranty Period
During warranty period supplier must ensure preventive maintenance & corrective/breakdown
maintenance whenever required.
Manufacturer shall commit the availability of spare parts and consumables and accessories for at
least 10 years
Installation and Commissioning
The bidder must arrange for the equipment to be installed and commissioned by certified or
qualified personnel; any prerequisites for installation to be communicated to the purchaser in
advance, in detail.
Documentation
User (Operating) manual in English.
Service (Technical / Maintenance) manual in English.
List of important spare parts and accessories with their part number and costing.
Certificate of calibration and inspection from factory.