Sequence Parameters and Image Optimization in MRI

Heidi Veillette, BSc, RT(R)(MR)*

*Medical Writer, Veillette Communications; Calgary, Alberta, Canada.

Address correspondence to: Heidi@VeilletteCommunications.com

Disclosure statement: The author reports having no significant financial or advisory relationships with corporate organizations related to this activity. 

ABSTRACT

Magnetic resonance imaging (MRI) is a powerful diagnostic imaging modality known for its exceptional soft tissue contrast, functional imaging capabilities, and lack of ionizing radiation. MRI radiologic technologists (RTs) are responsible for producing high-quality images by understanding how system components, sequence parameters, and digital image settings work together to influence image signal, contrast, spatial resolution, and scan time. This comprehensive course on MRI sequence parameters equips MRI RTs with the knowledge and confidence needed to optimize protocols across a wide range of clinical applications. This course begins with reviewing the fundamentals of nuclear precession, resonance, excitation, and relaxation, and builds on this foundation by detailing signal formation and spatial localization. Learners will explore how digital imaging settings influence image quality and how core sequence parameters determine image weighting and overall diagnostic value. Advanced topics, including fat suppression techniques, specialized gradient sequences, parallel imaging, and artifact-reduction tools will be also covered, providing practical strategies to improve workflow and image quality. By the end of the course, RTs will be able to refine imaging protocols, reduce artifacts, and produce high-quality diagnostic images with confidence.