Clinical value of pointwise encoding time reduction with radial acquisition (PETRA) MR sequence in assessing internal derangement of knee

Publication date: September–October 2018
Source:Clinical Imaging, Volume 51
Author(s): Sung Kwan Kim, Donghyun Kim, Sun Joo Lee, Hye Jung Choo, Minkyung Oh, Yohan Son, MunYoung Paek
PurposeThe purpose was to evaluate the clinical value of PETRA sequence for the diagnosis of internal derangement of the knee.Materials and methodsThe major structures of the knee in 34 patients were evaluated and compared among conventional MRI findings, PETRA images, and arthroscopic findings.ResultsThe specificities of PETRA with 2D FSE sequence were higher for meniscal lesions than those obtained when using 2D FSE alone.ConclusionUsing PETRA images along with conventional 2D FSE images can increase the accuracy of assessing internal derangements of the knee and, specifically, meniscal lesions.



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