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C-1119 - GRASE (gradient and spin-echo): An alternative for T2-weighted turbo spin echo sequence in ankle joint

G. Srinivasan1, D. Srivastava2; 1 kanchipuram/IN 2 New Delhi/IN Type: Scientific Exhibit
Area of Interests: Extremities, MR physics, Musculoskeletal joint
Imaging Technique: MR
Procedures: Physics, Experimental investigations
Special Focuses: Artifacts, Athletic injuries
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Aims and objectives: The aim was to evaluate chronic ankle pain using GRASE (gradient and spin-echo) and compare with T2-weighted TSE (Turbo spin echo sequence).The primary objective was comparing GRASE and T2W TSE in assessment of  anterior talofibular ligament injury, tendon injury, bone marrow edema and sof[...]

Methods and materials: Institutional review board approval was obtained prior to beginning the study. A cross-sectional study was done to evaluate chronic ankle pain using plain MRI. Study group included patients with chronic ankle pain from time period August 2013 to May 2015. Sample size was 62 patients. Inclusion crit[...]

Results: A total of 61 patients were assessed during the study. The study population age ranged from 18-64 years with a mean age of 40.1 years. Out of the 61 patients, 22 patients had anterior talofibular ligament injury, 10 had tendon injury and 33 patients showed bone marrow edema and 24 patients showed so[...]

Conclusion: GRASE is a new technique for fast ankle joint imaging.T2-weighted GRASE imaging offers an alternative to T2W TSE resulting in similar image quality, but acquired in short time. GRASE is a sequence that combines the strengths and weaknesses of both spin echo and gradient echo techniques. 

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References: 1.Trattnig S, Breitenseher M, Kontaxis G, Helbich T, Rand T, Imhof H. Grase: Ultra-fast turbo gradient spin-echo sequence. Acta radiol. 1997;38(5):880–4.   2.Caruthers S, Jara H, Melhem E. MR imaging: some applications of GRASE. Medicamundi. 1998;42(3):23–8.   3.Rockwell DT, Melhem ER, Bh[...]

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