Feasibility Study of Free-Breathing DISCO-Star Sequence in Dynamic Contrast-Enhanced Hepatic MRI
Objective This study aimed to compare the image quality of the free-breathing DISCO-Star sequence with the breath-hold LAVA sequence in hepatic imaging and explore the application potential of the DISCO-Star sequence in liver scans.Methods This study retrospectively analyzed 20 patients who underwent examinations with both the free-breathing DISCO-Star sequence and the breath-hold LAVA sequence between December 2023 and March 2024.The image quality was evaluated using a 5-point scoring system.Evaluation content included the consistency of two observers,motion artifacts,clarity of liver edges,timing of scans,and overall image quality.Results The two observers showed high consistency in overall image quality(K=0.814).The breath-holding LAVA sequence images scored better than the free breathing DISCO-Star sequence images in terms of motion artifacts,clarity of liver edges,timing of the scan,and overall image quality,with statistically significant differences between the two groups(P values all＜0.05).There was no significant difference in the diagnostic ability scoring between the two groups(P=1).Conclusion The DISCO-Star sequence offers image quality comparable to the LAVA sequence without necessitating breath-holds,holding substantial clinical relevance for patients incapable of breath-holding and meriting broader clinical adoption.
Magnetic Resonance ImagingLiverFree-BreathingBreath-Holding
万方数据
维普
