MRI Technologist - Foundations and Ethics: Course Overview and Diagnostic Modalities Flashcards

Vocabulary flashcards reviewing core diagnostic imaging modalities, radiation and MRI safety principles, requisition compliance criteria, and course evaluation structures based on lecture notes.

Medical Requisition

An official document issued by a healthcare professional requesting an imaging exam, which serves as a guide for the technologist regarding the exam type and clinical rationale.

ALARA Principle

Standing for 'As Low As Reasonably Achievable,' a radiation safety guideline mandating that patient radiation exposure be minimized while obtaining diagnostic quality images.

Magnetic Resonance Imaging (MRI)

A diagnostic imaging technique utilizing strong magnetic fields and radio waves—without ionizing radiation—to produce detailed soft tissue images.

Computed Tomography (CT)

An imaging modality using X-rays to generate detailed cross-sectional and 3D images of body structures such as the head, thorax, and abdomen.

Fluoroscopy

A dynamic imaging technique using continuous X-rays to display real-time, movie-like motion of internal body structures.

Angiography

An X-ray imaging technique that visualizes blood vessels following the injection of a contrast medium.

Mammography

A specialized X-ray imaging modality designed specifically for breast tissue evaluation and breast cancer screening.

Ultrasound

A non-ionizing imaging modality using high-frequency inaudible sound waves to visualize organs, soft tissues, and blood flow in real time.

Nuclear Medicine (PET/CT)

An imaging branch involving administered radiopharmaceuticals that emit radiation to detect organ function and metabolic activity.

Ferromagnetic Safety Danger in MRI

The risk where powerful magnetic fields attract or move ferromagnetic devices or implants (such as pacemakers or surgical clips), requiring mandatory pre-scan screening.

Patient Identifiers Requirement

The mandatory practice of verifying a patient's identity on a requisition using at least two distinct identifiers (such as name, date of birth, or medical record number).

Clinical Indications

The explicit medical reasons and symptoms specified on a requisition that guide the technologist in choosing appropriate imaging protocols and sequences.

Incomplete Requisition Hazards

Potential clinical issues resulting from ambiguous or missing request details, including diagnostic errors, treatment delays, and patient safety risks.

Personal Protective Equipment in Radiology

Lead-equivalent protective devices—such as aprons, thyroid collars, gloves, screens, and glasses—worn by personnel to reduce radiation exposure.

Dosimeter

A wearable device used by radiology personnel to track and monitor individual cumulative radiation doses against established annual legal limits.

Dossier Client et Documentation Unit Weighting

The learning unit covering client records, protocols, patient identification, and consent (Modules 1 to 4), weighted at 35% of the total course mark.

Rôle du Technologue et Éthique de la Profession Unit Weighting

The learning unit covering professional ethics and technologist roles (Modules 5 to 8), weighted at 30% of the total course mark.

Communication Personnelle et Interpersonnelle Unit Weighting

The learning unit covering effective personal and team communication (Modules 11 to 14), weighted at 35% of the total course mark.