Notice bibliographique
Résumé
What Is the Issue? Canada’s Drug Agency (CDA-AMC) is examining the role of portable CT use in Canada. Conventional CT scanners are large, costly, and fixed installations that require specialized infrastructure, such as radiation shielding and high-voltage power. Patients often need to be transported from other parts of a health care facility — such as the intensive care unit (ICU) or emergency department — to centralized radiology units to access conventional CT. This process can be logistically complex, clinically risky, and resource-intensive, particularly for patients who are critically ill or immobilized. Portable CT addresses these challenges by enabling diagnostic imaging at the point of care (e.g., at the patient’s bedside or in the operating room). While further evaluation is needed, portable CT may offer a more accessible and cost-effective imaging option in certain settings and clinical scenarios. The mobility and relatively lower infrastructure requirements for CT scanners suggest potential value in rural, remote, or underserved areas where conventional CT access is limited. What Did We Do? CDA-AMC conducted a limited literature search to summarize information on the technical features, clinical uses, and operational considerations of portable CT in hospital settings. The goal was to describe CT technology and to identify the main uses of portable CT. What Did We Find? Portable CT units most commonly used in ICUs, operating rooms, and emergency departments are compact and manoeuvrable and bring imaging to the patient. While portable CT units may have lower resolution compared to conventional units, it generally provides clinically sufficient image quality for use in critical care, emergency, and intraoperative settings, for some clinical indications. Radiation exposure levels are generally safe, especially with appropriate shielding, although studies have produced variable results depending on the clinical setting, shielding methods, and scanner models used. While portable CT imaging offers advantages, several potential risks and operational considerations may need to be considered including maintenance of acceptable radiation exposure, overuse of imaging, and possible infection control risks. Portable CT reduces the burden on ICU and transport staff as they no longer have to transport patients to the imaging suite, but this may increase the workload for radiology staff, particularly medical radiation technologists who may have to spend more time bringing the imaging to the patient. Portable CT may have the most clinical utility for patients who are critically ill, immobilized, in surgery, or infectious. Pediatric patients and patients in rural or remote communities may also benefit. Portable CT units cost less than fixed systems and require minimal setup, making them well-suited for hospitals with infrastructure or budget constraints.
Récupéré en direct depuis OpenAlex et désinversé. Les résumés ne sont pas conservés dans cette base de données : les index inversés représentent 8,6 Go des 9,3 Go de texte de la base, et le serveur dispose de 13 Go libres.
Comment cette classification a été obtenuedéplier
Prédiction distillée sur la base complète
Imitation des enseignantsNi prévalence calibrée, ni vérité terrain. Validation humaine à venir. Apprise à partir de 10 348 étiquettes directes de Codex et de 10 348 étiquettes directes de Gemma. Le mode candidate est l'union des têtes enseignantes seuillées; le consensus est leur intersection. Ces sorties portent le statut machine_predicted_unvalidated et ne sont ni des étiquettes humaines ni des étiquettes directes de modèles de pointe.
Scores Codex et Gemma par catégorie
| Catégorie | Codex | Gemma |
|---|---|---|
| Métarecherche | 0,000 | 0,000 |
| Méta-épidémiologie (sens strict) | 0,000 | 0,000 |
| Méta-épidémiologie (sens large) | 0,000 | 0,000 |
| Bibliométrie | 0,000 | 0,000 |
| Études des sciences et des technologies | 0,000 | 0,000 |
| Communication savante | 0,000 | 0,000 |
| Science ouverte | 0,000 | 0,000 |
| Intégrité de la recherche | 0,000 | 0,000 |
| Charge utile insuffisante (le modèle a refusé de juger) | 0,000 | 0,000 |
Scores machine (provisoires)
Les deux têtes enseignantes du modèle étudiant, lues sur ce travail. Un score ordonne la base pour la relecture; il n'affirme jamais une catégorie, et le statut de validation accompagne chaque rangée tel quel.
Scores de référence d'un modèle non mature (critères de maturité non atteints, 7 itérations). Un score ordonne; il n'affirme jamais une catégorie.
score_only:v0-immature-baseline · tel quel depuis la passe de notation : score_only signifie que le nombre peut ordonner les travaux, et qu'aucune étiquette de catégorie n'en découleClassification
machine, non validéePrédiction automatique; un appel candidat d’une seule tête enseignante, pas un consensus.
Le détail, modèle par modèle et score par score, se trouve en fin de page sous « Comment cette classification a été obtenue ».