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Abstract #1509

Gray-Blood Late Gadolinium Enhancement (GB-LGE) for Improved Myocardial Scar Evaluation

Lingjie Zhang1, Chengbin He1, Siying Ma1, Fuyan Wang1, Yue Qian1, Yunzhu Wu2, and Hongjie Hu1
1Department of Radiology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, China, Hangzhou, China, 2MR Research Collaboration Team, Siemens-Healthineers Ltd., Shanghai, China, Shanghai, China

Synopsis

Keywords: Myocardium, Cardiovascular

Motivation: Traditional bright-blood late gadolinium enhancement (BB-LGE) technique often obscures the visualization of endocardial LGE. In contrast, black blood technique overcomes this limitation but sacrifices contrast between the myocardium and blood pool.

Goal(s): By selecting specific TI (inversion time) values, gray blood images can be generated to achieve the desired contrast among the blood pool, myocardium, and scar tissue.

Approach: We conducted a comparative analysis of image quality, diagnostic confidence score, detection of delayed enhancement lesions, and the contrast-to-noise ratio (CNR) between BB-LGE and GB-LGE.

Results: The implementation of GB-LGE enhances diagnostic confidence and improves CNR between the blood pool and myocardial scar tissue.

Impact: The proposed GB-LGE sequence in this study enhances scar detection rates and diagnostic confidence, addressing limitations associated with equipment and technology. It optimizes clinical workflow efficiency while offering a universal approach with potential for widespread adoption.

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