Nuclear Medicine Imaging Apparatus Dynamic Detection Termination

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Solution Overview

Problem

Nuclear medicine imaging apparatuses face inefficiencies due to continuous measurement even when radiation is no longer detectable, particularly with short-lived isotopes or labeled compounds, leading to unnecessary operation and reduced image quality.

Innovation Solution

Incorporating a measuring unit to track the number of radiation detections and an end control unit that terminates the detection process when the threshold is reached, ensuring measurements are stopped when radiation is no longer detectable.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the nuclear medicine imaging apparatus continuously performs measurement for a predetermined period of time, then the measurement operation is completed according to schedule, but radiation may not be detected and the measurement becomes unnecessary

Engineering Contradiction:
Improvemeasurement operation completionVSAvoidunnecessary operation
Core Design Contradiction:
ProductivityVSLoss of energy

Solution Approach 1:

The system continuously monitors the detection count of radiation events and uses this feedback to dynamically adjust the measurement operation. When the detection count falls below a threshold, the system automatically terminates the measurement, preventing unnecessary continued operation while ensuring sufficient data collection when radiation is present

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The measurement operation transitions from a static fixed-duration process to a dynamic adaptive process. The end control unit adjusts the measurement timing based on real-time detection counts, making the measurement duration flexible rather than predetermined, thereby optimizing resource utilization

Inventive Principle:
Principle #15Dynamics

2Loss of time

If the nuclear medicine imaging apparatus continuously performs measurement, then the predetermined time period is utilized, but image quality deteriorates due to insufficient radiation detection

Engineering Contradiction:
Improvemeasurement time utilizationVSAvoidimage quality
Core Design Contradiction:
Loss of timeVSMeasurement precision

Solution Approach 1:

The system monitors detection counts in real-time and uses this feedback to determine when to terminate measurement. This ensures measurement continues long enough to accumulate sufficient radiation events for quality imaging while stopping promptly when radiation becomes undetectable, preventing both premature termination and excessive continued measurement

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system replaces fixed mechanical timing control with an intelligent control mechanism that substitutes automated detection-based decision-making for predetermined time schedules. The end control unit uses detection count thresholds to dynamically determine measurement termination, replacing rigid time-based control with flexible performance-based control

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

This approach prevents continuous measurement in vain, optimizing operational efficiency and maintaining image quality by ending the detection process when radiation levels fall below a threshold, thus conserving resources and improving image reconstruction.

Implementation Method 1

a detector that detects radiation for generating a nuclear medicine image

Methodology Applied
Scientific EffectRadiation detection: Radiation

Data Source

PatentUS8519342B2Nuclear medicine imaging apparatus, control method, and computer program product
Publication Date: 2013.08.27 TOSHIBA MEDICAL SYST CORP
  • US8519342B2 patent drawing
  • US8519342B2 patent drawing
  • US8519342B2 patent drawing

AI summary

A nuclear medicine imaging apparatus according to an embodiment of the invention includes a detector, a measuring unit, and an end control unit. The detector is configured to detect radiation for generating a nuclear medicine image. The measuring unit is configured to measure the number of times the detector detects the radiation. The end control unit is configured to control the detector to end the detection operation when the number of times measured by the measuring unit is equal to or less than a threshold value.