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Record W1633342139

간동맥화학색전술 시 시행하는 C-arm CT의 유용성 평가

2012· article· ko· W1633342139 on OpenAlexaboutno aff
김성배, 한성일, 나상훈, 신재준, 김명구

Bibliographic record

Venue대한인터벤션영상기술학회지 · 2012
Typearticle
Languageko
FieldMedicine
TopicDiverse Approaches in Healthcare and Education Studies
Canadian institutionsnot available
Fundersnot available
KeywordsImaging phantomNuclear medicineMedicineComputed tomographyRadiology
DOInot available

Abstract

fetched live from OpenAlex

목적: 최근 첨단 Flat Panel 혈관조영기의 보편화와 함께 TACE 시술 시 정확한 병변의 진단을 위해 시행하는 C-arm CT의 유용성에 대해 CT 표준 Phantom을 이용한 영상평가와 리피오돌 흡수 영상 비교, 선량평가를 해 봄으로써 C- arm CT의 임상적 유용성을 평가 해보고자 하였다. 대상 및 방법: C-arm CT와 MDCT의 영상의 질을 비교하기 위해 AAPM (American Association of Physicists in Medicine) Phantom을 사용하였다. 선량측정 장비는 Mobile MOSFET System (Best medical Canada, Ottawa, Canada)을 Humanoid Phantom (Male ART, The Alderson Radiation Therapy) 내부에 장착하여 측정하였다. 결과: AAPM Phantom을 이용한 측정 결과는 MDCT가 전 평가항목에 대해 적합 판정을 받은 반면에 C-arm CT는 물의 CT감약계수, 균일도, 공간분해능, 인공물 검사 등에서 미달 판정을 받았다. MOSFET Detector를 이용한 피폭선량 측정 결과는 C-arm CT와 MDCT 모두 큰 차이가 없었고 통계 (Wilcoxon Signed Ranks Test)에서도 유의한 차이가 없었다 (p=0.686). 리피오돌 흡수영상 및 조영증가 영상평가에서는 간종양의 리피오돌 흡수부분이 주위의 간 실질부위보다 높은 밀도를 나타내 흡수 여부를 알아보는데 조금도 부족하지 않았다. 결론: 양질의 C-arm CT 영상을 얻기 위해서는 임상 영상의 평가 및 적절한 성능관리용 팬텀 및 프로그램에 의한 정도관리가 이루어져야 한다. 하지만, 현재 C-arm CT 장치에 대한 정확한 관리기준이나 검사수가가 마련되어 있지 않은 상태이므로 조속한 시일 내에 새로운 법적, 제도적 기준이 제시되어야하고 이에 따른 관리가 요구되어야 할 것이다.

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)0.002
metaresearch head score (Gemma)0.003
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: none
Teacher disagreement score0.023
Threshold uncertainty score0.076

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0020.003
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0010.001
Science and technology studies0.0010.001
Scholarly communication0.0020.001
Open science0.0010.001
Research integrity0.0010.001
Insufficient payload (model declined to judge)0.0230.005

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 head0.171
GPT teacher head0.390
Teacher spread0.219 · 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 designObservational
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
Published2012
Admission routes1
Has abstractyes

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