3D Dose Prediction Using Deep Learning for Radiotherapy Planning

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Solution Overview

Problem

Traditional radiotherapy treatment planning workflows are subjective, time-consuming, and variable in quality, leading to inconsistent treatment outcomes and potential compromises in patient care.

Innovation Solution

A computer-implemented method using a fully convolutional neural network (FCNN) for predicting 3D dose distribution in radiotherapy, which generates a clinically deliverable treatment plan by analyzing input data, including 3D voxel images, and transmitting the plan to a radiotherapy system for precise radiation application.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional manual radiotherapy treatment planning workflows are used, then treatment plans can be developed with human expertise and judgment, but the process is time-consuming and produces highly variable quality of treatment

Engineering Contradiction:
Improvequality consistencyVSAvoidplanning time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The treatment planning process is segmented into distinct functional modules: a deep learning-based dose prediction module that generates initial dose distributions, and a subsequent optimization module that refines these distributions. This segmentation allows automated consistent dose calculation while maintaining time efficiency, resolving the contradiction between quality consistency and planning time.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

A deep learning-based dose prediction system serves as an intermediary between patient anatomy data and final treatment plans. This intermediary automatically generates consistent, high-quality dose distributions that eliminate human variability while operating rapidly, thus improving reliability without increasing time loss.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Productivity

If traditional manual radiotherapy treatment planning workflows are used, then human experts can apply clinical judgment, but multiple manual interactions require several hours to several days to plan treatment

Engineering Contradiction:
Improvetreatment planning efficiencyVSAvoidplanning time
Core Design Contradiction:
ProductivityVSLoss of time

Solution Approach 1:

The system enables self-service treatment planning where the deep learning algorithm automatically generates dose distributions and treatment plans without requiring multiple manual interactions from clinicians. The algorithm processes patient data and produces complete treatment plans in minutes, dramatically improving productivity while reducing time loss compared to traditional manual workflows.

Inventive Principle:
Principle #25Self-service

3Reliability

If traditional manual radiotherapy treatment planning is used, then treatment plans can be customized for each patient, but the subjective nature leads to inconsistent quality and compromised patient care

Engineering Contradiction:
Improvetreatment quality consistencyVSAvoidplanning system complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The subjective human judgment process is replaced with an objective deep learning-based dose prediction system. This substitution eliminates variability inherent in manual planning while maintaining the ability to customize treatments for each patient based on their specific anatomy and clinical requirements, improving reliability without excessive complexity.

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

Data Source

PatentUS11717702B23D deep planning radiotherapy system and method
Publication Date: 2023.08.08 MT SINAI SCHOOL OF MEDICINE
  • US11717702B2 patent drawing
  • US11717702B2 patent drawing
  • US11717702B2 patent drawing

AI summary

Systems and methods for three-dimensional dose prediction and treatment planning using a deep learning fully convolutional neural network are disclosed.