Specification for the Purchase of a Multi Row CT Scanner

1Fairview Range Regional Health Services 750 East 34th Street Hibbing, MN 55746 Phone # (218) 262-4881 Fax # (218) 362-6697Request for Proposal of Multi Row CT Scanner*RFP's are due on or before November 30, 2001. Please return completed RFP's to Danette Balaski, Materials ManagerVendor Name: ______Address: ______Contact Name: ______Telephone #: ______Fax #: ______Make/Model Proposed:______# of proposed model out in market:______Length of time make and model out in market:______*Please attach current reference list. 2 RFP TABLE OF CONTENTSI) Minimum SpecificationsII) GantryIII) Detector SystemIV) X-ray GeneratorV) X-ray Tube AssemblyVI) Sequential Scanning ParametersVII) Spiral Scanning ParametersVIII) Spiral Image Reconstructions from Raw Data IX) Survey Radiograph (Topogram)X) Dynamic Studies XI) Image Quality (Sequential and Spiral)XII) Patient PositioningXIII) Computer SystemXIV) Examination and Evaluation ConsolesXV) Laser CameraXVI) Room RequirementsXVII) Training RequirementsXVIII)Service ConditionsXIX) Price/Options/Warranty 3 Minimum Specifications: Multislice Spiral scanner for performing all clinical applications; Sub-Millimeter Slices, Quarter Second CT and Volume Speed set new standards in CT scanning; Workflow, Application Packages and User Interface are designed for the special challenges of Multislice CT. Wide variety of multislice application packages incl. Cardiac diagnosis. Ultra modern gantry design, low patient dose; integrated cooling system Shortest scan time for a full 360° rotation  500 ms Type of Detector and # of rows  8 Solidstate Multirows for slices up to 2x10 or 4x5 mm Number of slices per second  8 Volume Speed  80 mm/s Min. slice width  0.5 mm Continuous scan field  50 cm Gantry opening  70 cm Gantry tilt in Spiral mode with remote control  +/- 30° Tube capacity  5.3 MHU Generator power for spiral applications  60 kW Reconstruction time (512² matrix) in Spiral mode  1 s Table scan range  150 cm Spiral length with spec. low contrast  120 cm (Option  150 cm) Low contrast specification (LC) - 20 cm Phantom -  5 mm /  3 HU / 150 mAs Patient skin dose at specified LC  20 mGy High-contrast specification (HC) at 2% MTF  24 Lp/cm in the largest possible scan field of 50 cm Temporary image store (images / 512² matrix)  13.000 Automatic filming with laser camera yes System-integrated network capability (Dicom 3) yes 4 Multislice Spiral scanner for performing all clinical applications; Sub-Millimeter Slices, Quarter Second CT and unequalled Volume Speed set new standards in CT scanning; Workflow, Application Packages and User Interface are designed for the special challenges of Multislice CT. Wide variety of multislice application packages incl. Cardiac diagnosis.II) Gantry a) Gantry tilt - Angle of tilt - Remote control of control console b) Aperture c) Scan plane – gantry front distance d) Unrestricted scan field - Scan field size 1 - Scan field size 2 - Scan field size 3 e) Patient access - Table to gantry distance - Table to scan plane distance - Table length/height/width - Table weight capacity f) Dissipation of heat from the gantry III) Detector System b) Number of detector rows c) Number of slices per rotation d) Number of detector elements e) Fan-beam angle f) Number of active detector channels - with scan field size 1 - with scan field size 2 - with scan field size 3 - Acquisition enhancement techniques 5 g) Number of projections h) Focus-to-isocenter distance ( 600 mm)IV) X-ray Generator a) kV values b) Tube current (at 120 kV) c) Nominal max. power output d) Effective max. power output (max. mA x 120 kV) e) Reserve capacity (120 kV) with 1s scan time (360°) at specified LC (=mAmax of generator vs. mAs of spec. LC) V) X-ray Tube Assembly a) Anode heat storage capacity b) Focal spot size (IEC 336/93) - Large focus - Small focus c) Max. anode cooling rate d) Constant output of anode e) Filtration f) Available mAs range g) Display of spiral length available for selected scanning parametersVI) Sequential Scanning Parameters a) mAs range for 180° for 360° b) Scan times for 360° for 180°/240° c) Tube voltages e) Collimated slice thicknesses f) Collimated slice thicknesses (combinations g) Slice fusion technique - The following slice thicknesses can also 6 be reconstructed using slice fusion h) Cycle time incl. image reconstruction and storing, archiving and filming - with asynchronous display - with instant imagingVII) Spiral Scanning Parameters a) Rotation times for 360° for 180°/240° b) Max. single spiral without cooling delaysWith 20 cm Catphan phantom - at pitch 1-8 (standard) - at spec. low-contrast resolution c) Tube current (at 120 kV) d) Parameter change possible between ranges - Which parameters: mA Y or N kV Y or N Rotation time Y or N Slice thickness Y or N Pitch Y or N Direction of feed Y or N Algorithm Y or N e) Max. Scan field size f) Table feed range g) Collimated Slice thicknesses h) Collimated slice thicknesses (combinations) e.g., 4 X 1 mm i) Slice Fusion Technique - The following slice thicknesses can also be reconstructed using slice fusion j) Minimal reconstruction increment 7 - to be increased by ... steps k) VAR Algorithm (Volume artifact reduction) l) Multiple definable image reconstructions - Retrospective - Prospective m) Image reconstruction time (512² matrix) n) Program for artifact free Scan and Display when the anatomy is not completely contained within the measured field o) Selectable scan initiation delay p) Min. interspiral delay q) Pitch ranges r) Max. gantry tilt possible in Spiral mode - Possible with remote control VIII) Spiral Image Reconstruction from Raw Data a) Reconstructed display fields - Centric and eccentric - Prospective and retrospective b) Reconstruction matrix c) Display matrix d) Reconstruction times - Standard (512² matrix - High-resolution (512² matrix) - Retrospective (512² matrix) e) Image reconstruction concurrent to scanIX) Survey Radiograph (Topogram) a) Scan field sizes - Scan length b) Definition of multiple spiral ranges 8 c) Number of preselectable spiral ranges d) Spiral ranges with varying gantry tilt preselectable e) Survey radiograph can be stopped at any timeX) Dynamic Studies a) Continuous scanning mode - Min. interscan delay without table feed - Max. scan duration b) Dynamic single-slice mode - Shortest interscan delay (back-to-back) Without table feed - Number of scans in sequence up toXI) Image Quality (Sequential and Spiral) Low Contrast Perceptibility - Scan time - Scan field size (at least 30 cm) - Tube voltage - Slice thickness a) Resolution ( 3 mm) -20 cm Catphan- b) Contrast ( 4 HU) -20 cm Catphan- c) Skin dose d) mAs product e) CTDI values at 120 kV, 10 mm, 360° - 16 cm phantom (1cm below surface) (in center) - 32 cm phantom (1cm below surface) (in center ) 9 Max. high contrast (with clinical algorithm) - Scan time - Tube voltage - Tube current mA - Slice thickness a) Resolution (50% MTF) ( 2% MTF) ( 0% MTF) at 2% corresponds to mm XII) Patient Positioning a) Max. longitudinal travel b) Max. scan range (metal-free) c) Vertical range of table d) Positioning accuracy at any table feed rate e) Width of tabletop f) Max. table load with guaranteed positioning accuracyXIII) Computer System Describe a) Key performance data- Frequency 10 3*550 MHz- RAM - RAM max. extension - Word length b) Temporary image store- Image storage capacity equaling images (512²matrix) - Max. extension of storage capacity: Up to equaling images (512²matrix) c) Archiving - Rewritable optical storage medium - Storage capacity - Images(512²matrix//un-/compr.) d) Windows user interface Y or N e) Image Processor - storage capacity - storage capacity, max. extension - Diacom compatible (Y or N)XIV) Examination and Evaluation ConsolesExamination console a) Control computer- Frequency - RAM - Word length b) Windows user interface c) Operating and image viewing monitor - Screen size (diagonal) - Monitor resolution 11 - Frame frequency d) Gray-scale steps e) Display matrix f) Anatomy-specific window settings g) Scan and patient data can be overlaid or blanked out on film h) Functional sequences concurrent to scanning - Evaluation - Filming - Storage - Networking i) Creation of custom operating procedures by the user (scanning and/or postprocessing procedures) j) # of networking consoles system allows Scan Control a) No. of anatomy-spec. scan protocols freely programmable b) Parameters in anatomy-specific scan protocols freely programmable by user - kV - mAs - Scan time - Slice thickness - Anatomy-spec. algorithm - Window setting c) System-guided operation d) Automatic filming - Filming possible while concurrently examining another patient e) API (automatic patient instruction 12 - Number of user-defined instructions Evaluation Console a) Control computer- Frequency - RAM - Word length - Windows user interface b) Archiving - Rewritable optical storage medium - Storage capacity - Images(512²matrix//un-/compr.) Image Evaluation a) Number and form of ROIs - Form and types b) Density measurement via c) Zoom factor d) No. of multiple images on monitor e) Other evaluation and processing options - Time-density curves - Distance and angle measurement - Surface and volume measurement - CT value profile and freq. distribution - Image rotation, mirroring, roaming subtraction and averaging - Symmetry comparison - Scale - Image filter f) Functions executable in multitasking mode while scanning various studie - Image reconstruction 13 - Archiving - Filming - Image transfer via network - Image evaluation g) Secondary slice reconstruction(MPR) unrestricted at main console - Coronal/sagittal in real time - Oblique slices in real time - Curvilinear slices in real time h) Cine display without restriction at main console - Max. no. of images per series - Frame rate in 512² matrix XV) Laser Camera a) Digital filming - Manual - Automatic/software-controlled - possible concurrent to scanning - DICOM 3 XVI) Room Requirements a) Max. Thermal dissipation - Scanning including cooling system - in Standby b) Temperature range for trouble-free operation c) Removal of dissipated heat for compl. System d) Electrical power rating e) Power requirement for complete system f) Room size needed 14 XVII) Training Requirements Users: a) Hands-on instruction in standard examinations evaluation functions, archiving and filming performed on the system at the installation site by an applications specialist b) How many days of instruction are included without charge - Cost per additional day Biomed: a) Hands on trouble shooting/Cost if applicable b) Fully trained Biomed to service On-site? Off-site? XVIII) Service Conditions a) Annual cost of service contract - w. spare parts / w/o x-ray tubes - w. spare parts / w. x-ray tubes - w/o spare parts / w/o x-ray tubes - w/o spare parts / w. x-ray tubes b) Costs for replacement of x-ray tubes - Guaranteed no. of scan seconds or scans - Charge per scan second or scan For leased tube with full warranty c) Response time after fault is reported d) Service contract for existing system includes software maintenance with constant update service XIX) Pricing/Options 15 I)Base System Price $ Includes: (Please List)2)Options: A Quarter Second Cardio CT $ and avail.B Multislice Perfusion CT $ and avail.C Multislice Osteo CT $ and avail.D Multislice CT fluoro $ and avail. E Multislice Bolus $ and avail. F Multislice Pulmo CT $ and availG Multislice Dental CT $ and avail.C Program for 3D Surface Display (”3D Processing”) $ and avail.Multicolor, shadowed surfaceDisplay of three-dimensionalAnatomical structures- Automatic 3D segmentation via variable threshold values - 3D Surface Rendering, adjustable- 3D Volume measurement including surfaces, angles and distances correlation to MPR display 3) Supplies: Please list any single use/disposable type supply require for use of system and note if the product is vendor specific or open: (i.e. film - kodak item #XXX) a. 16 b. c. d. e.4) Software updates: Average per year/Cost 5) Warranty - Length of time - Conditions (ie. Part, labor, on-site, etc.)6) Installation costs7) Shipping CostsI certify that all information on this form is accurate.Completed by:______Title:______Date:______

Specification for the Purchase of a Multi Row CT Scanner

Details

Download

Copyright

We respect the copyrights and intellectual property rights of all users. All uploaded documents are either original works of the uploader or authorized works of the rightful owners.

Support