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Title: Magnetic resonance imaging of musculoskeletal lesions: Comparison of three fat-saturation pulse sequences
Authors: Pui, M.H. 
Goh, P.S. 
Choo, H.F. 
Fok, E.C.M.
Keywords: fat suppression
magnetic resonance imaging
Issue Date: 1997
Citation: Pui, M.H., Goh, P.S., Choo, H.F., Fok, E.C.M. (1997). Magnetic resonance imaging of musculoskeletal lesions: Comparison of three fat-saturation pulse sequences. Australasian Radiology 41 (2) : 99-102. ScholarBank@NUS Repository.
Abstract: Fat-saturation (FS) pulse sequences can improve the detection of musculoskeletal lesions. We prospectively compared contrast-enhanced T1- weighted FS spin-echo (SE) images, T2-weighted FS fast spin-echo (FSE) images and inversion recovery (IR) FSE images to determine if any of these three pulse sequences is superior for depicting bone marrow and soft tissue lesions. T1-weighted FS-SE images (400-680/10-20 [TR/TE]) after intravenous injection of gadolinium-diethylenetriaminepentaacetic acid (DTPA), T2- weighted FS-FSE (2400-4200/96-112) and IR-FSE (3700-6000/12-14/170 [TR/TE/TI]) images were obtained with a 1.5-T magnet system in 35 patients. The visibility, margination and extent of 37 bone marrow and 67 soft tissue lesions, image uniformity, susceptibility and motion artefacts were qualitatively analysed by four radiologists. The number and size of lesions detected, the mean lesion signal-to-noise ratio (S/N) and contrast-to-noise ratio (C/N) were also statistically compared. More bone and soft-tissue lesions were detected on the IR-FSE and T2-weighted FS-FSE than the T1- weighted FS-SE images. The IR-FSE images were significantly better than the T2-weighted FS-FSE and T1-weighted FS-SE images for bone marrow lesion conspicuity (P
Source Title: Australasian Radiology
ISSN: 00048461
Appears in Collections:Staff Publications

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