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Abstract #4494

Rapid LAVA imaging with deep learning reconstruction: evaluation of image quality and diagnostic performance in patients with liver cancer

Guo Sa1, Qidong Wang1, Desheng Shang1, Qingqing Wen2, Weiqiang Dou2, Zhan Feng1, and Feng Chen1
1Department of Radiology, First Affiliated Hospital,School of Medicine,ZheJiang University, Hangzhou, China, 2MR Research, GE Healthcare, Beijing, China

Synopsis

Keywords: AI/ML Image Reconstruction, Cancer

Motivation: 3D gradient-echo based liver acceleration volume acquisition (LAVA) sequence is widely used for dynamic contrast imaging in liver. LAVA usually requires breath-holding for over 16 seconds, posing a challenge for individuals with difficulty in prolonged breath-holding.

Goal(s): To investigate whether deep learning reconstruction (DLR) allows for LAVA imaging with reduced scan time but without sacrificing image diagnostic quality.

Approach: SNR, CNR, and subjective analysis using 5-point Likert scales were compared to evaluate the image quality and diagnostic performance between DLR-LAVA and conventional LAVA.

Results: Compared to conventional LAVA, DLR-LAVA showed similar SNR, CNR, and qualitative image quality scores.

Impact: Deep learning reconstruction based rapid LAVA imaging is promising for reducing breath-hold time while maintaining similar image quality compared with conventional LAVA imaging.

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