Lesson 1Use of Gadolinium-Based Contrast Agents: Indications, Contraindications, and NSF Risk MitigationThis lesson reviews gadolinium contrast properties, uses, and dosing, then covers contraindications, nephrogenic systemic fibrosis risks, screening, and ways to lower risks while keeping diagnostic image quality and clinical benefits high.
Gadolinium chelate types and stability classesClinical indications in neuro and MSK MRIRenal function assessment and eGFR thresholdsContraindications and high‑risk patient groupsNSF pathophysiology and risk reduction stepsInformed consent and documentation practicesLesson 2Sequence Selection and Parameter Adjustments to Trade Image Contrast, Spatial Resolution, and Scan TimeThis lesson explains how choosing sequences and settings affects contrast, resolution, and scan time, teaching practical balances using TR, TE, flip angle, field of view, matrix, and parallel imaging in standard protocols.
TR, TE, and flip angle fundamentalsAdjusting contrast with sequence familiesBalancing spatial resolution and SNRScan time, averages, and parallel imagingFOV, matrix, and slice thickness choicesProtocol optimization for clinical questionsLesson 3Safety Zones, Zone Access Control, and Patient Monitoring Inside MRI (Hearing Protection, Emergency Response)This lesson defines MRI safety zones, access rules, and staff duties, then covers patient monitoring, ear protection, emergency plans, and safe handling of codes or quench events in the MRI area.
ACR MRI safety zones I–IV layoutControlled access and staff responsibilitiesScreening before zone III and IV entryHearing protection selection and fittingPhysiologic monitoring and alarms in MRIEmergency response, code and quench plansLesson 4Artefacts in MRI and How They Affect Interpretation: Motion, Susceptibility, Chemical Shift, and Their MitigationThis lesson explains common MRI artefacts, their causes and looks, focusing on motion, susceptibility, and chemical shift, then offers ways to spot, reduce, or use artefacts for better image reading accuracy.
Patient motion and ghosting artifactsFlow and pulsation artifacts in neuro MRIMagnetic susceptibility and metal artifactsChemical shift and India ink artifactsAliasing, wraparound, and truncationSequence and parameter tweaks to reduce artifactsLesson 5Basic MRI Signal Formation: Hydrogen Nuclei, T1 and T2 Relaxation, Proton Density, and Image Contrast MechanismsThis lesson introduces MRI signal from hydrogen atoms, Larmor precession, and resonance, then covers T1 and T2 relaxation, proton density, and how they create contrast in clinical MRI images.
Hydrogen nuclei, spin, and Larmor frequencyRF excitation, resonance, and signal inductionT1 relaxation and longitudinal recoveryT2 relaxation and transverse decayProton density and its role in contrastFactors influencing overall image contrastLesson 6Patient Preparation for MRI Musculoskeletal and Neuro Exams (Positioning, Coils, Immobilisation, and Comfort Measures)This lesson details preparing patients for musculoskeletal and brain MRI, including screening, positioning, coil selection, immobilisation, and comfort tips to boost image quality and cut motion, anxiety, and redo scans.
Pre‑exam screening and patient educationPositioning for spine and brain MRIPositioning for joints and extremity MRICoil selection and placement optimizationImmobilization devices and motion controlComfort, anxiety reduction, and sedationLesson 7MRI Safety Screening: Ferromagnetic Hazards, Implants, Pacemakers, and the Safety Questionnaire WorkflowThis lesson outlines MRI safety screening processes, stressing ferromagnetic risks, implants, and heart devices, and how to read device labels, handle conditional implants, and record clearance choices.
Ferromagnetic object and projectile risksStandard MRI safety questionnaire itemsPacemakers and cardiac device categoriesMR Safe, MR Conditional, MR Unsafe labelsHandling aneurysm clips and neurostimulatorsDocumentation and communication of clearanceLesson 8Common MRI Sequences Relevant to Musculoskeletal and Neuro Imaging: T1-Weighted, T2-Weighted, FLAIR, DWI, GRE/SWI, Proton Density, and STIRThis lesson reviews main MRI sequences for musculoskeletal and brain imaging, describing contrast features, common uses, and limits of T1, T2, FLAIR, DWI, GRE or SWI, proton density, and STIR.
T1‑weighted sequences and main indicationsT2‑weighted and fluid‑sensitive imagingFLAIR for parenchymal and CSF pathologyDWI and ADC for acute ischemia and tumorsGRE and SWI for blood and calcificationPD and STIR in joint and marrow evaluation
