GE Discovery NM/CT 670 User Manual

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Technical Publications
Direction 5483063-1EN, Rev.2
Discovery NM/CT 670
Nuclear Medicine Imaging System
Standard Integration Instructions
©2015 by GE Healthcare

GE Discovery NM/CT 670 Specifications

General

Manufacturer	GE Healthcare
Model	Discovery NM/CT 670
Imaging Modalities	SPECT, CT
Image Reconstruction	Iterative Reconstruction
Gantry Aperture	70 cm
CT Tube Voltage	80, 100, 120, 140 kV
SPECT Detectors	2
CT Detector Rows	16
Patient Weight Capacity	204 kg (450 lbs)
Detector Type	Solid-state digital detectors
CT Slice Thickness	0.625 mm to 10 mm
Patient Positioning	Supine
Software	Xeleris
CT Tube Current	10 mA to 500 mA
Energy Range	70 keV to 511 keV
Collimators	LEHR, MEGP

Summary

Preface

Safety Information in the System Documentation Set

Provides essential safety information for operating the system and ensuring user well-being.

Safety Labels in This Document

Details the hazard classifications (DANGER, WARNING, CAUTION) used throughout the manual.

Conventions in This Document

Explains formatting, symbols, and special notations used in the manual for clarity.

Chapter 1: General System Requirements

1.1 Objectives and Overview

Outlines the manual's purpose and the information provided for site preparation professionals.

1.2 Customer Responsibilities

Details the customer's duties in site preparation, including adherence to specifications and drawings.

1.3 Delivery Requirements

Specifies guidelines for system component handling, transportation, and unpacking.

Chapter 2: Equipment Description and General Construction Requirements

2.1 Equipment and System Components

Describes the NM/CT hybrid system and illustrates its various components with figures.

2.2 Room Size, Layout and Considerations

Provides guidelines for scan and operator room dimensions, layout, and component placement.

2.3 Room Structural Requirements

Details requirements for floor, ceiling, and wall construction, including acoustic and vibration specs.

Chapter 3: Special Construction Requirements

3.1 Radiation Protection and Shielding Requirements

Covers radiation shielding regulations and requirements for staff and background radiation reduction.

3.3 EMI Considerations

Addresses electrostatic discharge, electromagnetic interference, and immunity for optimal performance.

Chapter 4: Environmental HVAC Requirements

4.1 General Guidelines

Emphasizes maintaining constant temperature and humidity for system functionality and component longevity.

4.2 Heat Output

Provides a table detailing the heat output (BTU/hr and Watt) of system components.

Chapter 5: Electrical Requirements

5.1 Power Feed

Recommends dedicated feeder runs and details transformer size and feeder requirements.

5.2 Power Supply Requirements

Specifies requirements for line voltage, frequency, and measured kVa load characteristics.

5.3 Grounding

Details the system's equal potential grounding system and its primary grounding points.

Appendix A: Customer Checklist

Safety Declaration

Confirms that relevant site personnel have read the safety and system overview manuals.

Completion Sign Off

Confirms that pre-installation is complete and all checklist items have been verified.

Appendix B: Measuring Floor Flatness

Required Tools

Lists the necessary tools for accurately measuring floor flatness according to specifications.

Appendix D: Regulatory Clearances

D.1 Regulatory Clearances

Outlines minimum clearances required by U.S. federal regulations and national standards.

D.1.2 Regulated Minimum Working Clearance by Major Subsystem

Specifies minimum working clearances for subsystems like gantry, table, console, and PDU.

D.2 Service Clearances

Defines service clearances needed to safely perform maintenance and remove system covers.