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- W2044560649 abstract "Purpose: To verify the fat quantification accuracy of abdominal fat quantification results on images acquired with a Water Saturated b-SSFP (WS b-SSFP) MRI Sequence. Method and Materials: 10 healthy (5 female and 5 male) volunteers underwent both WS T1W TSE and WS b-SSFP scans with breath hold on a 1.5 T clinical MR scanner. For the WS T1W TSE sequence, the parameters were as follows: TR/TE/flip angle = 500 ms/5 ms/90°, turbo factor = 7 and readout bandwidth = 128 KHz. For the WS 3D b-SSFP sequences, the imaging parameters were as follows: TR/TE/flip angle = 2.9 ms/1.2 ms/55°, ETL = 128 with 12 dummy echoes, and readout bandwidth = 200 KHz. For WS T1W TSE sequence, 6 axial slices centered at L2-L3 level were acquired in two consecutive expired breath-holds, with 14 seconds each. Since WS b-SSFP is a much faster scan, 8 slices (with slice 2–7 imaged at the same positions of the 6 TSE slices) were obtained in 11 seconds in one breath-hold. For each subject, fat volumes from six common slices of WS TSE and WS b-SSFP were measured and summed. Total abdominal fat (TAF), intra-abdominal fat (IAF), and subcutaneous abdominal fat (SAF) volumes from images of both scans were measured and compared. Results: The TAF, IAF, and SAF mean differences of the fat volume measured from images of the two scans are only 0.34%, −0.25%, and 0.91%, respectively. The Bland-Altman plots show that all the measurement differences between WS b-SSFP and WS TSE are within the 95% of difference. Conclusion: The two methods are the same in terms of the measurement accuracy for human abdominal imaging. Therefore, WS b-SSFP MRI can be used for abdominal fat quantification to reduce imaging and post-processing difficulties and ultimately reduce research cost in abdominal fat distribution studies." @default.
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- W2044560649 date "2008-06-01" @default.
- W2044560649 modified "2023-09-26" @default.
- W2044560649 title "TU-D-332-02: Abdominal Fat Quantification Accuracy Using Water Saturated B-SSFP MRI Sequences: A Verification Study" @default.
- W2044560649 doi "https://doi.org/10.1118/1.2962593" @default.
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