How to evaluate the ACL (anterior cruciate ligament) of the knee?

All Answers (9) Show full discussion

• 
  Ali Golchini · Razi University

  Hi medya bahaa can you explain more abut this problem ?

  Cancel Save

  Hi medya bahaa
  can you explain more abut this problem ?

  Mar 13, 2012
• 
  Raul Medina · Autonomous University of Chihuahua

  in our department we have learned that correct alignment of the planning lines during, for example, sagital Proton density sequence is important in order to obtain good images of ACL . It certainly is different than the angle of PCL although variation is small. You can refer to many technical textbooks to determine which sequences fit best for you. We have found T1 with fat saturation a good chose

  Cancel Save

  in our department we have learned that correct alignment of the planning lines during, for example, sagital Proton density sequence is important in order to obtain good images of ACL . It certainly is different than the angle of PCL although variation is small. You can refer to many technical textbooks to determine which sequences fit best for you. We have found T1 with fat saturation a good chose

  Mar 13, 2012
• 
  Budhy Adisoejoso · Iuliu Haţieganu University of Medicine and Pharmacy

  I think for the ACL you should stick to PD sequence or T2 with fatsat, try to keep your slice thickness minimal (3mm with 0 distance factor, even 2 mm if possible). As you know the ACL goes from the anterior aspect of intercondylar tibial ragion to the fossa of the lateral femur condyle, so for the best sagittal plane you should refer to the coronal and transversal scans. Good luck!

  Cancel Save

  I think for the ACL you should stick to PD sequence or T2 with fatsat, try to keep your slice thickness minimal (3mm with 0 distance factor, even 2 mm if possible). As you know the ACL goes from the anterior aspect of intercondylar tibial ragion to the fossa of the lateral femur condyle, so for the best sagittal plane you should refer to the coronal and transversal scans. Good luck!

  Mar 13, 2012
• 
  Val Adams · University of Liverpool

  Hi On positioning you need to ensure the knee isn't completely straight - around 5-10 degrees of flexion will tense the ACL making it easier to visualise, and bringing it away from the intercondylar notch (this also helps to identify maltracking patella on axial views). In difficult cases you could flex the knee 30 degrees but this would cause problems for evaluating other structures. The sagittal should be angled 5 degrees from midline for ACL, alternatively the knee can be positioned with 5 degrees external rotation. Thin slices are necessary. You could consider using a volume sequence.

  Cancel Save

  Hi
  On positioning you need to ensure the knee isn't completely straight - around 5-10 degrees of flexion will tense the ACL making it easier to visualise, and bringing it away from the intercondylar notch (this also helps to identify maltracking patella on axial views). In difficult cases you could flex the knee 30 degrees but this would cause problems for evaluating other structures. The sagittal should be angled 5 degrees from midline for ACL, alternatively the knee can be positioned with 5 degrees external rotation. Thin slices are necessary. You could consider using a volume sequence.

  Mar 14, 2012
• 
  Vasileios Papakostas

  In transverse plane you put the package of the saggital slices in a little tilted angulation ( 10-15 degrees ) towards the medial compartement . In coronal plane at the same time you put it from lateral to medial compartement in a angulation of 10-15 degrees. Then it appears the normal ACL

  Cancel Save

  In transverse plane you put the package of the saggital slices in a little tilted angulation ( 10-15 degrees ) towards the medial compartement . In coronal plane at the same time you put it from lateral to medial compartement in a angulation of 10-15 degrees. Then it appears the normal ACL

  Mar 14, 2012
• 
  Dalip Dhiman · Himalayan Institute of Medical Sciences

  Use the coil in proper position of the knee . partially flexed.Please go to north clinic of America"s.

  Cancel Save

  Use the coil in proper position of the knee . partially flexed.Please go to north clinic of America"s.

  Mar 18, 2012
• 
  Mark Herbst · Lake Erie College of Osteopathic Medicine

  Place the patient in the scanner with the leg rotated externally in a comfortable position, which gives you the 15 degrees of tilt you want when you image in straight sagittal slices. Use 3-4 mm thickness or you will not see the ACL well.

  Cancel Save

  Place the patient in the scanner with the leg rotated externally in a comfortable position, which gives you the 15 degrees of tilt you want when you image in straight sagittal slices. Use 3-4 mm thickness or you will not see the ACL well.

  Jun 1, 2012
• 
  Claudia Kronnerwetter · Medical University of Vienna

  Enclosed the plan positioning of ACL in clinical MRI-measurement.

  Cancel Save

  Enclosed the plan positioning of ACL in clinical MRI-measurement.

  sag PD tseR 2mm cru.pdf ×

  Jul 19, 2012