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Comparison of T1ρ, dGEMRIC, and quantitative T2 MRI in preoperative ACL rupture patients.

Publication ,  Journal Article
Klocke, NF; Amendola, A; Thedens, DR; Williams, GN; Luty, CM; Martin, JA; Pedersen, DR
Published in: Acad Radiol
January 2013

RATIONALE AND OBJECTIVES: T1ρ, inversion recovery sequence with a gadolinium contrast agent (dGEMRIC), and T2 mapping have shown sensitivity toward different osteoarthritic-associated compositional changes after joint injury, but have not been studied concomitantly in vivo. We hypothesized that these magnetic resonance imaging sequences can be used to measure early glycosaminoglycan (GAG) losses and collagen disruption in cartilage of anterior cruciate ligament (ACL) rupture patients. MATERIALS AND METHODS: Thirteen acute ACL rupture patients were each imaged during a 4-hour presurgery workup to acquire a fast-spin-echo-based T1ρ sequence, a multi-echo spin-echo T2 sequence, and T1-weighted dGEMRIC an average of 55.7 days after injury. After acquisition, the three sequences' relaxation times were analytically compared. RESULTS: Site-specific differences were evinced, but nonsignificant differences in mean relaxation time between layers of the same region and sequence were observed (analysis of variance, P < .05). Spearman's correlation coefficients of 0.542 (T1ρ vs. T2, P < .05), -0.026 (T1ρ vs. dGEMRIC, P = .585) and -0.095 (T2 vs. dGEMRIC, P < .05) were found. CONCLUSION: No appreciable focal GAG loss was detected by dGEMRIC, and T2 was generally elevated in the early acute phase of blunt trauma injury. In contrast, both general and focal elevations in T1ρ relaxation times were identified, indicating an acute increase in unbound water in the matrix after blunt trauma, and show that patient-specific cartilage changes occur within otherwise healthy, young patients. Further investigation into each sequence's long-term significance is warranted to help clinicians decide which sequence(s) will be the most useful for osteoarthritis prognosis given the challenge of concomitantly acquiring all three in a busy clinical setting.

Duke Scholars

Published In

Acad Radiol

DOI

EISSN

1878-4046

Publication Date

January 2013

Volume

20

Issue

1

Start / End Page

99 / 107

Location

United States

Related Subject Headings

  • Nuclear Medicine & Medical Imaging
  • Male
  • Magnetic Resonance Imaging
  • Image Interpretation, Computer-Assisted
  • Humans
  • Glycosaminoglycans
  • Gadolinium DTPA
  • Female
  • Contrast Media
  • Cartilage, Articular
 

Citation

APA
Chicago
ICMJE
MLA
NLM
Klocke, N. F., Amendola, A., Thedens, D. R., Williams, G. N., Luty, C. M., Martin, J. A., & Pedersen, D. R. (2013). Comparison of T1ρ, dGEMRIC, and quantitative T2 MRI in preoperative ACL rupture patients. Acad Radiol, 20(1), 99–107. https://doi.org/10.1016/j.acra.2012.07.009
Klocke, Noelle F., Annunziato Amendola, Daniel R. Thedens, Glenn N. Williams, Christopher M. Luty, James A. Martin, and Douglas R. Pedersen. “Comparison of T1ρ, dGEMRIC, and quantitative T2 MRI in preoperative ACL rupture patients.Acad Radiol 20, no. 1 (January 2013): 99–107. https://doi.org/10.1016/j.acra.2012.07.009.
Klocke NF, Amendola A, Thedens DR, Williams GN, Luty CM, Martin JA, et al. Comparison of T1ρ, dGEMRIC, and quantitative T2 MRI in preoperative ACL rupture patients. Acad Radiol. 2013 Jan;20(1):99–107.
Klocke, Noelle F., et al. “Comparison of T1ρ, dGEMRIC, and quantitative T2 MRI in preoperative ACL rupture patients.Acad Radiol, vol. 20, no. 1, Jan. 2013, pp. 99–107. Pubmed, doi:10.1016/j.acra.2012.07.009.
Klocke NF, Amendola A, Thedens DR, Williams GN, Luty CM, Martin JA, Pedersen DR. Comparison of T1ρ, dGEMRIC, and quantitative T2 MRI in preoperative ACL rupture patients. Acad Radiol. 2013 Jan;20(1):99–107.
Journal cover image

Published In

Acad Radiol

DOI

EISSN

1878-4046

Publication Date

January 2013

Volume

20

Issue

1

Start / End Page

99 / 107

Location

United States

Related Subject Headings

  • Nuclear Medicine & Medical Imaging
  • Male
  • Magnetic Resonance Imaging
  • Image Interpretation, Computer-Assisted
  • Humans
  • Glycosaminoglycans
  • Gadolinium DTPA
  • Female
  • Contrast Media
  • Cartilage, Articular