Development of a cost-effective 3D-printed MRI phantom for enhanced teaching of system performance and image quality concepts.

Purposes: This research highlights the need for affordable phantoms for MRI education. Current options are either expensive or limited. A phantom, easy to manufacture and distribute, is proposed to demonstrate various pedagogical concepts, aiding students in understanding MRI image quality concepts.

Narrative review of tissue-mimicking materials for MRI phantoms: Composition, fabrication, and relaxation properties.

Introduction: Tissue-mimicking materials (TMMs) are now essential reference objects for quality control, development and training in all medical imaging modalities. This review aims to provide a comprehensive synthesis of materials used in the fabrication of TMMs for MRI phantoms, focusing on their composition, fabrication methods, and relaxation properties (T1 and T2).

Methods: A systematic review was conducted, covering articles published between 1980 and 2023.

Full-field noise-correlation elastography for in-plane mechanical anisotropy imaging.

Elastography contrast imaging has great potential for the detection and characterization of abnormalities in soft biological tissues to help physicians in diagnosis. Transient shear-waves elastography has notably shown promising results for a range of clinical applications. In biological soft tissues such as muscle, high mechanical anisotropy implies different stiffness estimations depending on the direction of the measurement.

In plane quantification ofmuscle elastic anisotropy factor by steered ultrasound pushing beams.

Skeletal muscles are organized into distinct layers and exhibit anisotropic characteristics across various scales. Assessing the arrangement of skeletal muscles may provide valuable biomarkers for diagnosing muscle-related pathologies and evaluating the efficacy of clinical interventions..