1. MRI Of The Knee Joint By Dr. Mohamed Samieh Radiology Department
October 6 University

2. Mri Of the Knee joint Indications: -Knee joint complaint Pain Trauma
Swelling
Osteoarthritis
-suspected pathology (pervious examinations)
(contrast)
Inflammation
Tumors

5. Knee pain with normal MRI?!
Kinematic
Meniscal contusion
Plicae

6. How to know the pulse sequences
T1/ PD T2
Gradient
STIR

7. COMMON MR APPEARANCES T1 T2 STRUCTURE OR LESIONS LOW Cortical bone
Menisci(medial & lateral)
Ligaments(ACL, PCL,..)
Calcification

8. Common mr appearances T1 T2 Structure or lesions High Low
Fat(subcutaneous, Lipoma,…)
Bone Marrow
Fluid(effusion, cyst, ganglion)
Blood(haemoarthrosis)

9. Menisci (medial & lateral) Ligaments
Items to be evaluated
Where?
Menisci (medial & lateral)
Ligaments
-Cruciate (ACL, PCL)
-Collateral
-Retinacular
Tendons (Quadriceps, pattelar)
Bones
Synovial effusion
Sagittal PD
Coronal
Axial
Sagittal T1 & T2
Sagittal T2

10. Kinematic MRI

11. meniscus Medial meniscus Banana-shaped Posterior horn wider,
Longer, taller than anterior horn
Posterior horn tightly attached to the capsule
Grade II degenration more common

13. meniscus Lateral meniscus C-shape
Posterior and anterior horns are symmetric
Anterior horn may be hypo plastic,extremely thin
Discoid meniscus and meniscal cysts more common

14. B C A C A B

17. Lateral meniscus

18. Medial meniscus

19. Meniscal lesions
Tear
Degeneration
Cyst
discoid