Quantitative evaluation of the tibial tunnel after anterior cruciate ligament reconstruction using diffusion weighted and dynamic contrast enhanced MRI: a follow-up feasibility study.
Objective: The aim of the study was to evaluate the feasibility of two quantitative MRI methods: diffusion weighted imaging (DWI) and dynamic contrast enhanced imaging (DCEI), for follow-up assessment of the tibial tunnel after reconstruction of the anterior cruciate ligament (ACL).Materials and Met...
| Published in: | Skeletal Radiology Vol. 41; no. 5; pp. 569 - 575 |
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| Main Authors: | , , , , , , , , , , , |
| Format: | research Journal Article |
| Published: |
Springer Nature
May2012
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| Online Access: | View this record in EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=104443484&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 104443484 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 03642348 O14 jtl: Skeletal Radiology issn: 03642348 maglogo: N pubinfo: dt: May2012 vid: 41 iid: 5 pid: 237 pub: Springer Nature place: New York, New York artinfo: ui: 104443484 NLM21879337 2011752140 10.1007/s00256-011-1256-6 NLM21879337 104443484 ppf: 569 ppct: 6 formats: fmt: @attributes: type: P tig: atl: Quantitative evaluation of the tibial tunnel after anterior cruciate ligament reconstruction using diffusion weighted and dynamic contrast enhanced MRI: a follow-up feasibility study. aug: au: Rupreht M Jevtic V Sersa I Vogrin M Seruga T Jevsek M Rupreht, Mitja Jevtič, Vladimir Serša, Igor Vogrin, Matjaž Seruga, Tomaž Jevšek, Marko affil: Radiology Department, University Medical Centre Maribor, Ljubljanska 5, 2000 Maribor, Slovenia sug: subj: Anterior Cruciate Ligament Reconstruction Image Enhancement Methods Magnetic Resonance Imaging Methods Postoperative Complications Diagnosis Tibia Pathology Adult Anterior Cruciate Ligament Injuries Contrast Media Diagnostic Use Edema Diagnosis Edema Etiology Pilot Studies Female Prospective Studies Graft Survival Human Male Postoperative Complications Etiology Postoperative Period Rupture Diagnosis Rupture Etiology Tibia Blood Supply Wound Healing Adult: 19-44 years Female Male ab: Objective: The aim of the study was to evaluate the feasibility of two quantitative MRI methods: diffusion weighted imaging (DWI) and dynamic contrast enhanced imaging (DCEI), for follow-up assessment of the tibial tunnel after reconstruction of the anterior cruciate ligament (ACL).Materials and Methods: Twenty-three patients were examined by MRI at 1 and 6 months following ACL reconstruction. DWI and DCEI were utilized for evaluating the region of interest (ROI) within the proximal part of the tibial tunnel. From the resulting apparent diffusion coefficient (ADC) maps, ADC values were calculated. DCEI data were used to extract the enhancement factor (f(enh)) and the enhancement gradient (g(enh)) for the same ROI.Results: Calculated ADC as well as the f(enh) and g(enh) had diminished to a statistically significant extent by 6 months after ACL reconstruction. The average ADC value diminished from 1.48 (10(-3) mm(2)/s) at 1 month to 1.30 (10(-3) mm(2)/s) at 6 months after reconstruction. The average f(enh) value decreased from 1.21 at 1 month to 0.50 at 6 months and the average g(enh) value decreased from 2.01%/s to 1.15%/s at 6 months, respectively.Conclusion: The study proved feasibility of DWI and DCEI for quantitative assessment of the tibial tunnel at 1 and 6 months after ACL reconstruction. Both methods have the potential for use as an additional tool in the evaluation of new methods of ACL reconstruction. To our knowledge, this is the first time quantitative MRI has been used in the follow-up to the ACL graft healing process. pubtype: Academic Journal doctype: research Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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