Search Results for author: Jianfei Liu

Found 6 papers, 0 papers with code

Self and Mixed Supervision to Improve Training Labels for Multi-Class Medical Image Segmentation

no code implementations6 Mar 2024 Jianfei Liu, Christopher Parnell, Ronald M. Summers

Validation results on 11 patients showed that the accuracy of training labels was statistically significantly improved, with the Dice similarity coefficient of muscle, subcutaneous and visceral adipose tissue increased from 74. 2% to 91. 5%, 91. 2% to 95. 6%, and 77. 6% to 88. 5%, respectively (p<0. 05).

Image Segmentation Medical Image Segmentation +3

Automated Plaque Detection and Agatston Score Estimation on Non-Contrast CT Scans: A Multicenter Study

no code implementations14 Feb 2024 Andrew M. Nguyen, Jianfei Liu, Tejas Sudharshan Mathai, Peter C. Grayson, Ronald M. Summers

Heart, aorta, and lung segmentations were determined using TotalSegmentator, while plaques in the coronary arteries and heart valves were manually labeled for 801 volumes.

Semantic Segmentation

Automated Classification of Body MRI Sequence Type Using Convolutional Neural Networks

no code implementations12 Feb 2024 Kimberly Helm, Tejas Sudharshan Mathai, Boah Kim, Pritam Mukherjee, Jianfei Liu, Ronald M. Summers

In order to reduce clinician oversight and ensure the validity of the DICOM headers, we propose an automated method to classify the 3D MRI sequence acquired at the levels of the chest, abdomen, and pelvis.

3D Classification

Enhanced Muscle and Fat Segmentation for CT-Based Body Composition Analysis: A Comparative Study

no code implementations10 Jan 2024 Benjamin Hou, Tejas Sudharshan Mathai, Jianfei Liu, Christopher Parnell, Ronald M. Summers

This study evaluates the reliability of an Internal tool for the segmentation of muscle and fat (subcutaneous and visceral) as compared to the well-established public TotalSegmentator tool.

Segmentation

Automated Measurement of Pericoronary Adipose Tissue Attenuation and Volume in CT Angiography

no code implementations22 Nov 2023 Andrew M. Nguyen, Tejas Sudharshan Mathai, Liangchen Liu, Jianfei Liu, Ronald M. Summers

In this pilot work, we developed a fully automated approach for the measurement of PCAT mean attenuation and volume in the region around both coronary arteries.

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