X-ray CT Dose Index Management by Body Part Segmentation
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Solution Overview
Problem
Conventional X-ray CT dose reports do not allow for the management of dose indices on a body part-by-body part basis when multiple body parts are included in the imaged range, leading to inadequate exposure tracking and management.
Innovation Solution
A medical apparatus and program that segment the imaged range into individual body parts, allowing for the identification and calculation of dose indices for each body part, enabling precise dose index management on a body part-by-body part basis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a conventional dose report records a dose index for the whole range to be imaged as one body part, then the device complexity is reduced, but the measurement precision of dose indices for individual body parts deteriorates
Solution Approach 1:
The patent segments the imaged range into multiple body parts and calculates separate dose indices for each body part. The dose report includes both the total dose index for the entire imaged range and individual dose indices for each segmented body part, enabling precise tracking of radiation exposure for each anatomical region while maintaining a simplified overall report structure.
2Measurement precision
If a dose report includes dose indices for multiple body parts on a body part-by-body part basis, then the measurement precision of dose indices is improved, but the device complexity increases
Solution Approach 1:
The patent divides the imaged range into multiple body parts and calculates individual dose indices for each segment. The dose report is structured to include a total dose index for the entire range and separate dose indices for each body part, providing detailed measurement precision without creating excessive complexity through organized presentation of segmented data.
Data Source
AI summary
To provide a technique with which dose indices can be managed for body parts in a range to be imaged on a body part-by-body part basis, an X-ray CT apparatus comprises: image producing unit (51) for producing a scout image (10) of a patient; defining unit (52) for defining a range (11) to be imaged in the scout image (10); segmenting unit (53) for segmenting the range (11) to be imaged into two body parts; identifying unit (54) for identifying which one of body parts (12) included in a human body each of the two body parts corresponds to; and calculating unit (55) for calculating a dose index for each of the two body parts.