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Record W7133004826

Strain measurement in vertebral bodies by image registration

2006· dissertation· W7133004826 on OpenAlexaff
Michael Hardisty

Bibliographic record

VenueTSpace · 2006
Typedissertation
Language
FieldMedicine
TopicBone health and osteoporosis research
Canadian institutionsUniversity of Toronto
Fundersnot available
KeywordsStrain (injury)Image registrationBiomechanicsMeasure (data warehouse)Image (mathematics)Image processing
DOInot available

Abstract

fetched live from OpenAlex

The spine is a complex mechanical structure, understanding the mechanics of this structure is critical in developing new interventions to combat cancer and other diseases. The purpose of the study was to use image registration to measure strain allowing quantification the biomechanical response of vertebrae under axial compression. A rigorous validation for using image registration to measure strain in bone was presented, strain was accurately measured up to -0.2 with a detection limit of 0.001. Strain fields in rodent vertebrae were measured by image registration and compared to finite element analysis, which showed limited agreement. In a pilot study differences in the biomechanical responses of tumour involved and control thoracolumbar rat vertebrae were assed with image registration. The average axial strain in the tumour-bearing vertebrae group was 0.025 greater. Image registration was applied successfully to measure strain in whole bones in 3D, demonstrating the efficacy for assessing pathologies and treatments.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame machine prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.

metaresearch head score (Codex)0.001
metaresearch head score (Gemma)0.004
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: Bench or experimental
GenreCandidate signal: Empirical · Consensus signal: none
Teacher disagreement score0.003
Threshold uncertainty score0.009

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0010.004
Meta-epidemiology (narrow)0.0010.001
Meta-epidemiology (broad)0.0010.000
Bibliometrics0.0020.002
Science and technology studies0.0000.001
Scholarly communication0.0010.001
Open science0.0010.001
Research integrity0.0010.001
Insufficient payload (model declined to judge)0.0030.001

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.043
GPT teacher head0.388
Teacher spread0.344 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designBench or experimental
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations0
Published2006
Admission routes1
Has abstractyes

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