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QUIZ 5: Knee Imaging Basics Of MRI:How I Do It AFIIM -ISRA 2015.

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Presentation on theme: "QUIZ 5: Knee Imaging Basics Of MRI:How I Do It AFIIM -ISRA 2015."— Presentation transcript:

1 QUIZ 5: Knee Imaging Basics Of MRI:How I Do It AFIIM -ISRA 2015

2 QUIZ 5: Knee Imaging Basics Of MRI:How I Do It AFIIM -ISRA 2015 Why in PD sequence the echo time (TE) is 40ms? A: to optimize the FAT SAT B: to avoid the “magic angle “ on the PCL C: to optimize the analysis of cartilage D: to optimize the ferromagnetic nodes in VNS Why in PD sequence the echo time (TE) is 40ms? A: to optimize the FAT SAT B: to avoid the “magic angle “ on the PCL C: to optimize the analysis of cartilage D: to optimize the ferromagnetic nodes in VNS

3 QUIZ 5: Knee Imaging Basics Of MRI:How I Do It AFIIM -ISRA 2015 Why in PD sequence the echo time (ET) is 40ms? A: to optimize the FAT SAT B: to avoid the “magic angle “ on the PCL to optimize the analysis of cartilage C: to optimize the analysis of cartilage D: to optimize the ferromagnetic nodes in VNS Why in PD sequence the echo time (ET) is 40ms? A: to optimize the FAT SAT B: to avoid the “magic angle “ on the PCL to optimize the analysis of cartilage C: to optimize the analysis of cartilage D: to optimize the ferromagnetic nodes in VNS

4 Basics Of MRI:How I Do It AFIIM -ISRA 2015 How do you optimize the knee position ? A: Knee in extension internal rotation 15° B : Knee in flexion 15°,neutral rotation C: Knee in flexion 30°,neutral rotation D: Knee in flexion 15°,external rotation 15° How do you optimize the knee position ? A: Knee in extension internal rotation 15° B : Knee in flexion 15°,neutral rotation C: Knee in flexion 30°,neutral rotation D: Knee in flexion 15°,external rotation 15° QUIZ 5: Knee Imaging

5 Basics Of MRI:How I Do It AFIIM -ISRA 2015 How do you optimize the knee position ? A: Knee in extension internal rotation 15° B : Knee in flexion 15°,neutral rotation C: Knee in flexion 30°,neutral rotation Knee in flexion 15°,external rotation 15° D: Knee in flexion 15°,external rotation 15° How do you optimize the knee position ? A: Knee in extension internal rotation 15° B : Knee in flexion 15°,neutral rotation C: Knee in flexion 30°,neutral rotation Knee in flexion 15°,external rotation 15° D: Knee in flexion 15°,external rotation 15° QUIZ 5: Knee Imaging

6 Basics Of MRI:How I Do It AFIIM -ISRA 2015 For partial tear of ACL whatis the best sequence ? A: Sag. PD FS, slice thikness:3mm B: Coronal STIR with short RT C: 3D FSE isotropic sequence (CUBE,SPACE,…) D: Axial 3D FSPGR For partial tear of ACL whatis the best sequence ? A: Sag. PD FS, slice thikness:3mm B: Coronal STIR with short RT C: 3D FSE isotropic sequence (CUBE,SPACE,…) D: Axial 3D FSPGR QUIZ 5: Knee Imaging

7 Basics Of MRI:How I Do It AFIIM -ISRA 2015 For partial tear of ACL whatis the best sequence ? A: Sag. PD FS, slice thikness:3mm B: Coronal STIR with short RT 3D FSE isotropic sequence (CUBE,SPACE,…) C: 3D FSE isotropic sequence (CUBE,SPACE,…) D: Axial 3D FSPGR For partial tear of ACL whatis the best sequence ? A: Sag. PD FS, slice thikness:3mm B: Coronal STIR with short RT 3D FSE isotropic sequence (CUBE,SPACE,…) C: 3D FSE isotropic sequence (CUBE,SPACE,…) D: Axial 3D FSPGR QUIZ 5: Knee Imaging

8 Basics Of MRI:How I Do It AFIIM -ISRA 2015 When a VNS is suspected wich sequence do you first use ? A: 3D FSP GR Fat Sat B: 3D FSE ISO (CUBE) C: 2D T2 *(GRE) D: T1 SE When a VNS is suspected wich sequence do you first use ? A: 3D FSP GR Fat Sat B: 3D FSE ISO (CUBE) C: 2D T2 *(GRE) D: T1 SE QUIZ 5: Knee Imaging

9 Basics Of MRI:How I Do It AFIIM -ISRA 2015 When a VNS is suspected wich sequence do you first use ? A: 3D FSP GR Fat Sat B: 3D FSE ISO (CUBE) 2D T2 *(GRE) C: 2D T2 *(GRE) D: T1 SE When a VNS is suspected wich sequence do you first use ? A: 3D FSP GR Fat Sat B: 3D FSE ISO (CUBE) 2D T2 *(GRE) C: 2D T2 *(GRE) D: T1 SE QUIZ 5: Knee Imaging

10 Basics Of MRI:How I Do It AFIIM -ISRA 2015 One proposition is wrong in those 3 pictures : A.the medial retinacular is anormal B.The bone marrow oedema is typical landmarks for ACL tear C.There is blood intra articular effusion D.The mecanism is often valgus-flexion-external rotation One proposition is wrong in those 3 pictures : A.the medial retinacular is anormal B.The bone marrow oedema is typical landmarks for ACL tear C.There is blood intra articular effusion D.The mecanism is often valgus-flexion-external rotation QUIZ 5: Knee Imaging

11 Basics Of MRI:How I Do It AFIIM -ISRA 2015 One proposition is wrong in those 3 pictures : A.the medial retinacular is anormal B.The bone marrow oedema is typical landmarks for ACL tear C.There is blood intra articular effusion D.The mecanism is often valgus-flexion-external rotation One proposition is wrong in those 3 pictures : A.the medial retinacular is anormal B.The bone marrow oedema is typical landmarks for ACL tear C.There is blood intra articular effusion D.The mecanism is often valgus-flexion-external rotation QUIZ 5: Knee Imaging

12 Basics Of MRI:How I Do It AFIIM -ISRA 2015 Transient patella dislocation most commonly results from a twisting motion, with the knee in flexion and the femur rotating internally on a fixed foot Patellar dislocation accounts for 3% of all knee injuries Medial retinacular abnormalities, medialpatellar contusion,lateral condylar contusion,joint effusion Transient lateral patellar subluxation have a distinctive constellation of MR findings that can be used to distinguish this entity from other common knee injuries (ACL tear, direct contusion) Transient patella dislocation most commonly results from a twisting motion, with the knee in flexion and the femur rotating internally on a fixed foot Patellar dislocation accounts for 3% of all knee injuries Medial retinacular abnormalities, medialpatellar contusion,lateral condylar contusion,joint effusion Transient lateral patellar subluxation have a distinctive constellation of MR findings that can be used to distinguish this entity from other common knee injuries (ACL tear, direct contusion) Kirsch MD, Fitzgerald SW, Friedman H et- al. Transient lateral patellar dislocation: diagnosis with MR imaging. AJR Am J Roentgenol. 1993;161 (1): 109-13. QUIZ Knee Imaging


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