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

Clin Imaging. 2018 Sep-Oct:51:260-265. doi: 10.1016/j.clinimag.2018.05.022. Epub 2018 Jun 1.

Abstract

Purpose: The purpose was to evaluate the clinical value of PETRA sequence for the diagnosis of internal derangement of the knee.

Materials and methods: The major structures of the knee in 34 patients were evaluated and compared among conventional MRI findings, PETRA images, and arthroscopic findings.

Results: The specificities of PETRA with 2D FSE sequence were higher for meniscal lesions than those obtained when using 2D FSE alone.

Conclusion: Using PETRA images along with conventional 2D FSE images can increase the accuracy of assessing internal derangements of the knee and, specifically, meniscal lesions.

Keywords: Cartilage; Knee; Magnetic resonance imaging; Meniscus; PETRA; Ultrashort echo time.

Publication types

  • Evaluation Study

MeSH terms

  • Adolescent
  • Adult
  • Aged
  • Female
  • Humans
  • Image Enhancement / methods*
  • Image Interpretation, Computer-Assisted / methods
  • Knee / pathology*
  • Knee Joint / pathology*
  • Magnetic Resonance Imaging / methods*
  • Male
  • Meniscus / pathology*
  • Middle Aged
  • Sensitivity and Specificity
  • Young Adult