Ultrasonic Probe Positioning via Body Surface Map
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Solution Overview
Problem
In ultrasonic diagnostic apparatuses, it is challenging for operators and non-experts to determine the specific position on the body surface and direction of the ultrasonic probe during scanning, as existing systems lack clear visualization of the probe's position and movement, making it difficult to accurately acquire images of internal organs.
Innovation Solution
The ultrasonic diagnostic apparatus incorporates a position detector and control circuitry that uses a three-dimensional coordinate system to associate the ultrasonic image with a vivisection view, allowing for the designation of biological reference points and displaying support data, such as atlas images, to help operators accurately position the probe and understand the scan method.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional ultrasonic diagnostic apparatus displays only MPR and VR images in three-dimensional space, then the imaging capability is maintained, but the operator cannot determine the specific position on the body surface and direction of the ultrasonic probe during scanning
Solution Approach 1:
The patent introduces a two-dimensional body surface map as an additional visualization dimension alongside the traditional three-dimensional MPR and VR images. This body surface map displays the probe position projected onto the body surface, providing complementary spatial information that helps operators understand probe location without adding physical complexity to the imaging system.
Solution Approach 2:
The patent uses a body surface map as an intermediary representation that translates three-dimensional probe position information into a two-dimensional visual format that is easier to interpret. This intermediary view bridges the gap between the physical probe position and the internal organ images, making position information accessible without modifying the core imaging functionality.
2Adaptability or versatility
If ultrasonic scan is performed in various directions according to situation, then the imaging flexibility is improved, but it becomes difficult for non-scan operators to understand the specific position and direction of the probe
Solution Approach 1:
The patent implements a feedback mechanism where the body surface map continuously updates to reflect the current probe position and orientation during scanning. This real-time visual feedback allows operators to see exactly where the probe is located on the body surface and in what direction it is pointing, making the scanning process more intuitive and easier to understand for both operators and non-operators.
Solution Approach 2:
The patent uses color coding to represent different probe orientations and positions on the body surface map. By assigning specific colors to different scanning directions and positions, the system provides intuitive visual cues that make it easier to understand probe orientation without requiring complex technical knowledge.
3Device complexity
If no position sensor is attached to the ultrasonic probe, then the device complexity is reduced, but the ability to detect and visualize probe position is lost
Solution Approach 1:
The patent introduces a body surface map as an intermediary representation that visualizes probe position information without requiring complex sensor systems. By projecting three-dimensional probe position onto a two-dimensional body surface map, the system achieves position visualization with minimal additional complexity, using simple geometric projections rather than complex sensor arrays.
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 solution enables more accurate and efficient ultrasonic scanning by providing clear visual feedback and support data, allowing operators to correctly position the probe and improve the objectivity of ultrasonic diagnosis, reducing the need for manual annotation and improving the consistency of scans.
Implementation Method 1
a position detector 32 that detects a position in three-dimensional space of either the ultrasonic image or the ultrasonic probe
Implementation Method 2
a position detector 32 that detects a position in three-dimensional space of either the ultrasonic image or the ultrasonic probe
Implementation Method 3
a mechanical four-dimensional probe for swinging a plurality of transducers arrayed in line or a two-dimensional array probe with a plurality of transducers arranged in a grid
Implementation Method 4
acquires a three-dimensional ultrasonic image in real time
Data Source
AI summary
An ultrasonic diagnosis apparatus includes a position detector, and control circuitry. The position detector detects a position in a three-dimensional space of one of an ultrasonic image and an ultrasonic probe. The control circuitry uses a vivisection view defined in a three-dimensional space. The control circuitry associates a structure related to a subject included in the ultrasonic image with a structure included in the vivisection view using a position and orientation in a first three-dimensional coordinate system of the structure related to the subject included in the ultrasonic image and a position and orientation in a second three-dimensional coordinate system of the structure included in the vivisection view.