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Record W2978198543

Évaluation des capteurs plans en imagerie cardiaque interventionnelle

2005· article· fr· W2978198543 on OpenAlexaff
Guillaume Sulpice

Bibliographic record

VenueCMBES Proceedings · 2005
Typearticle
Languagefr
FieldEngineering
TopicAdvanced X-ray and CT Imaging
Canadian institutionsMontreal Heart Institute
Fundersnot available
KeywordsHumanitiesArt
DOInot available

Abstract

fetched live from OpenAlex

Les systemes d’angiographie cardiaque doivent permettre aux cardiologues interventionnistes de quantifier avec precision le degre de stenose et de voir en temps reel de fines structures en mouvement telles que les arteres, les catheters ou les stents. La dose au patient peut etre relativement importante selon la duree des procedures. La qualite d’image etant directement reliee a la dose, l’enjeu technologique du systeme est d’offrir la meilleure qualite d’image a un taux d’exposition le plus bas possible. L’integration de la technologie des detecteurs plats en angiographie cardiaque semble apporter une amelioration importante de la qualite d’image par rapport aux traditionnels amplificateurs de brillance et cameras, avec cependant, des taux d’exposition plus eleves. Quels sont les reels avantages de ces systemes qui tendent a s’imposer sur le marche? Apres une description de la technologie des detecteurs plats et leur integration au systeme d’imagerie cardiaque, nous presentons leurs performances en terme de qualite d’image, d’exposition et de quantification automatique des arteres. Ces resultats sont obtenus avec le fantome de fluoroscopie cardiovasculaire NEMA/SCA&I que nous presentons ici comme moyen standardise de caracteriser les systemes d’angiographie cardiaques

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 distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesMeta-epidemiology (narrow)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Other design · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.833
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.002
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

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 head0.016
GPT teacher head0.247
Teacher spread0.230 · 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 teacher head, not a consensus.

Study designOther design
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
Published2005
Admission routes1
Has abstractyes

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Same venueCMBES ProceedingsSame topicAdvanced X-ray and CT ImagingFrench-language works237,207