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Record W75267038

A practical approach to PET/MRI: Common abdominal pathology in oncology

2013· article· en· W75267038 on OpenAlexaff
Liran Domachevsky, Ryan D. Niederkohr, Katherine M. Krajewski, Jyothi P. Jagannathan, Katherine Zukotynski

Bibliographic record

Venuenot available
Typearticle
Languageen
FieldMedicine
TopicRadiomics and Machine Learning in Medical Imaging
Canadian institutionsUniversity of Toronto
Fundersnot available
KeywordsMedicineRadiologyMedical physicsPositron emission tomographyModalitiesMagnetic resonance imagingPET-CTNuclear medicine
DOInot available

Abstract

fetched live from OpenAlex

1234 Learning Objectives 1. Review the appearance of common abdominal pathology on MRI. 2. Discuss the added value which MRI may provide to PET/CT in oncology patients. 3. Provide illustrative examples where MRI may serve as a problem-solving tool for non-revealing or confounding PET/CT in oncology patients. Both PET and MRI are important imaging modalities that provide unique and often complementary information of significant clinical value. Hybrid PET/MRI scanners have recently become commercially available for clinical use. Knowledge of MRI, its clinical applications and the appearance of frequently encountered pathology is essential for all imaging physicians who will be involved in reading PET/MRI, whether they are trained in nuclear medicine, radiology or both. This knowledge will allow accurate correlation of PET and MR studies and help guide recommendations for follow-up imaging when appropriate. The aim of this paper is to review the MRI characteristics of commonly encountered abdominal pathology, to discuss the added or complementary value which MRI may provide to PET/CT in oncology patients, and to highlight scenarios where MRI may serve as a problem-solving tool for non-revealing or confounding PET/CT in this patient population.

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)0.006
metaresearch head score (Gemma)0.023
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Not applicable · Consensus signal: none
GenreCandidate signal: Review · Consensus signal: none
Teacher disagreement score0.023
Threshold uncertainty score0.077

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0060.023
Meta-epidemiology (narrow)0.0020.001
Meta-epidemiology (broad)0.0010.001
Bibliometrics0.0070.002
Science and technology studies0.0020.006
Scholarly communication0.0050.008
Open science0.0040.005
Research integrity0.0090.010
Insufficient payload (model declined to judge)0.0230.017

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 head0.024
GPT teacher head0.368
Teacher spread0.343 · 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 designNot applicable
Domainnot available
GenreReview

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
Published2013
Admission routes1
Has abstractyes

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