Abstract #4795

Virtual MR elastography based on IVIM for assessment of tumor, node and prognostic stage in rectal cancer: compared with real MR elastography

Yijing Luo¹, Wenguang Liu¹, Yue Li¹, Huiting Zhang², Feifei Qu², Yanglei Wu², Yigang Pei¹, and Wenzheng Li¹

¹Department of Radiology, Xiangya Hospital, Central South University, Changsha, China, ²MR Research Collaboration, Siemens Healthineers, Shanghai, China

Synopsis

Keywords: Elastography, Contrast Mechanisms

Motivation: It is not widely available to real MR elastography (r-MRE) for clinical because of external elastography equipment.

Goal(s): To assess the staging value of virtual MR elastography (v-MRE) preoperatively in rectal adenocarcinoma (RA).

Approach: Relationship between shift ADC (sADC) from IVIM and real shear-wave speed (C_r-MRE), inversion of the equation for generating virtual shear-wave speed (C_v-MRE), and assessment of pathological stages in RA patients.

Results: In diagnosing T, N and P stage, the virtual MR elastography has potential to replace real MR elastography.

Impact: This study overcomes the shortcomings of real MR elastography and facilitates MR elastography to be used in clinical practice.

How to access this content:

For one year after publication, abstracts and videos are only open to registrants of this annual meeting. Registrants should use their existing login information. Non-registrant access can be purchased via the ISMRM E-Library.

After one year, current ISMRM & ISMRT members get free access to both the abstracts and videos. Non-members and non-registrants must purchase access via the ISMRM E-Library.

After two years, the meeting proceedings (abstracts) are opened to the public and require no login information. Videos remain behind password for access by members, registrants and E-Library customers.

Click here for more information on becoming a member.