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Abstract #1327

Breath-Hold, Respiratory-Triggered, and Free-Breathing Diffusion-Weighted MR Imaging of Renal Lesions: Comparison of Imaging Quality and Apparent Diffusion Coefficient Values

Haiyi Wang1, Huiyi Ye1, Jia Wang1, Xu Zhang2, Aitao Guo3, Yingwei Wang1, Xinkun Wang1

1Department of Radiology, Chinese PLA General Hospital, Beijing, China; 2Department of Urology, Chinese PLA General Hospital, Beijing, China; 3Department of Pathology, Chinese PLA General Hospital, Beijing, China

Diffusion-weighted imaging (DWI) has become an established method for abdominal imaging. The kidney is a particularly interesting organ to study with DWI. Conventional DWI requires breath-hold during scanning, which sometimes cannot be realized for patients with breath-hold difficulty. This study compares the respiratory-triggered, free-breathing and breath-hold DWI of renal lesions, and the conclusion is drawn that respiratory-triggered and free-breathing DWI can be appropriate sequences for evaluation of renal lesions without any compromise in the calculated ADC values, and free-breathing DWI can display better image quality.