ISMRM23 - Non-Standard MR Contrast Mechanisms: From Properties to Function IV: Short & Sweet: UTE & ZTE

ISMRM & ISMRT Annual Meeting & Exhibition • 03-08 June 2023 • Toronto, ON, Canada

Non-Standard MR Contrast Mechanisms: From Properties to Function IV: Short & Sweet: UTE & ZTE

Sunrise Course

ORGANIZERS: Karin Shmueli, Cristian Tejos, Richard Thompson, Alex Tze Lun Leong

Thursday, 08 June 2023

718A

07:00 - 08:00

Moderators: Hyungseok Jang

Skill Level: Basic to Intermediate

Session Number: S-Th-07

CME Credit

Session Number: S-Th-07

Overview
This course with cover the theoretical foundations and applications of imaging modalities that make use of non-standard contrast mechanisms, such as elastography (MRE), magnetic susceptibility (QSM and SWI), electric conductivity (MR EPT), functional susceptibility changes (fQSM), and ultrashort TE (UTE) and zero TE (ZTE) sequences.

Target Audience
This course is designed for scientists and clinicians who are interested in understanding, developing, or applying imaging techniques that make use of non-standard contrast mechanisms, such as elastography (MRE), magnetic susceptibility (QSM), and electric conductivity (MR EPT). The course is also focused on those interested in functional imaging based on changes in susceptibility (fQSM) or those wishing to use ultrashort TE (UTE) and zero TE (ZTE) sequences to scan challenging structures due to their rapid spin-spin relaxation.

Educational Objectives
As a result of attending this course, participants should be able to:
- Explain the acquisition and processing methods for different MRI approaches with non-traditional contrast mechanisms;
- Discuss the pros and cons of each method; and
- Identify different areas of applications for each method.

07:00		Short & Sweet: UTE & ZTE: Theory View Presentation Video Emil Ljungberg Keywords: Physics & Engineering: Pulse design Ultra-short or zero echo time (UTE and ZTE) enables MR contrasts that are not possible with conventional methods. In this presentation, you will learn how to achieve an echo time of near zero, the obstacles that must be tackled along the way, and about substances with ultra-short T2. This will set the stage for examples of novel images that cannot be acquired any other way.
07:30		Short & Sweet: Case Study & Applications of UTE/ZTE in MSK Contrast/Metal Artifact Reduction View Presentation Video Reto Sutter Keywords: Musculoskeletal: Skeletal, Musculoskeletal: Tendons Ultra-Short Echo Time (UTE) and Zero Echo Time (ZTE) imaging are two advanced techniques that have been increasingly applied in musculoskeletal imaging for visualization of tissues with short T2 relaxation times. ZTE imaging has been used primarily for the assessment of various osseous pathologies including fractures, osteolysis and degenerative changes. UTE imaging was used to assess a variety of bone, cartilage, and tendon pathologies. UTE/ZTE imaging also allows for quantitative assessment of short T2 tissues, providing information about tissue properties such as T2* relaxation times and collagen content making them valuable tools for the diagnosis and monitoring of musculoskeletal disorders.Ultra-Short Echo Time (UTE) and Zero Echo Time (ZTE) imaging are two advanced techniques that have been increasingly applied in musculoskeletal imaging for visualization of tissues with short T2 relaxation times. ZTE imaging has been used primarily for the assessment of various osseous pathologies including fractures, osteolysis and degenerative changes. UTE imaging was used to assess a variety of bone, cartilage, and tendon pathologies. UTE/ZTE imaging also allows for quantitative assessment of short T2 tissues, providing information about tissue properties such as T2* relaxation times and collagen content making them valuable tools for the diagnosis and monitoring of musculoskeletal disorders.