Usefulness of the quantitative evaluation of diffusion‐weighted mri in the diagnosis of anterior cruciate ligament tears

Park, Hyojin; Lee, So Yeon; Rho, Myung Ho; Kim, Mi Sung; Kwon, Hee Jin; Chung, Eun Chul

doi:10.1002/jmri.25256

Cited by 6 publications

(3 citation statements)

References 13 publications

(22 reference statements)

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“…However, this study was limited to the qualitative use of DWI. Park et al 46 evaluated the feasibility of quantitative DWI in the diagnosis of ACL rupture. These authors found no additional benefit of DWI to differentiate between ruptured and normal ACLs.…”

Section: Discussionmentioning

confidence: 99%

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Diffusion tensor imaging of the anterior cruciate ligament following primary repair with internal bracing: A longitudinal study

Dyck

Froeling

Heusdens

et al. 2020

Journal Orthopaedic Research

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Diffusion tensor imaging (DTI) provides information about tissue microstructure and its degree of organization by quantifying water diffusion. We aimed to monitor longitudinal changes in DTI parameters (fractional isotropy, FA; mean diffusivity, MD; axial diffusivity, AD; radial diffusivity, RD) of the anterior cruciate ligament (ACL) following primary repair with internal bracing (IBLA). Fourteen patients undergoing IBLA were enrolled prospectively and scheduled for clinical follow‐up, including instrumented laxity testing, and DTI at 3, 6, 12, and 24 months postoperatively. DTI was also performed in seven healthy subjects. Fiber tractography was used for 3D segmentation of the whole ACL volume, from which median DTI parameters were calculated. The posterior cruciate ligament (PCL) served as a control. Longitudinal DTI changes were assessed using a linear mixed model, and repeated measures correlations were calculated between DTI parameters and clinical laxity tests. At follow‐up, thirteen patients had a stable knee and one patient sustained an ACL rerupture after 12 months postoperatively. The ACL repair showed a significant decrease of FA within the first 12 months after surgery, followed by stable FA values thereafter, while ACL diffusivities decreased over time returning towards normal values at 24 months postoperatively. For PCL there were no significant DTI changes over time. There was a significant correlation between ACL FA and laxity tests (r = −0.42, P = .017). This study has shown the potential of DTI to longitudinally monitor diffusion changes in the ACL following IBLA. The DTI findings suggest that healing of the ACL repair is incomplete at 24 months postoperatively.

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Section: Discussionmentioning

confidence: 99%

“…Park et al 46 ACL reconstruction. This factor may account for the relatively high failure rates reported in most studies.…”

Section: Discussionmentioning

confidence: 99%

Diffusion tensor imaging of the anterior cruciate ligament following primary repair with internal bracing: A longitudinal study

Dyck

Froeling

Heusdens

et al. 2020

Journal Orthopaedic Research

View full text Add to dashboard Cite

show abstract

“…Whereas MRI is a very reliable tool in the acute and chronic setting for complete ACL tear and concomitant injuries [ 17 , 18 ], partial ACL tears are less obviously recognized on conventional morphologic sequences, especially in a chronic setting [ 19 , 20 ]. Whereas functional sequences as diffusion weighted imaging MRI may not improve diagnosis [ 21 , 22 ], stress MRI are a valuable tool to visualise translatory and rotatory instability [ 23 , 24 ].…”

Section: Discussionmentioning

confidence: 99%