QUIZ 5: Knee Imaging

Basics Of MRI:How I Do It AFIIM -ISRA 2015

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

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 C: to optimize the analysis of cartilage D: to optimize the ferromagnetic nodes in VNS

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°

QUIZ 5: Knee Imaging

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°

QUIZ 5: Knee Imaging

Basics Of MRI:How I Do It AFIIM -ISRA 2015

For partial tear of ACL what is the best sequence ?

A: Sag. PD FS , slice thikness:3mmB: Coronal STIR with short RTC: 3D FSE isotropic sequence (CUBE,SPACE,…)D: Axial 3D FSPGR

QUIZ 5: Knee Imaging

Basics Of MRI:How I Do It AFIIM -ISRA 2015

For partial tear of ACL what is the best sequence ?

A: Sag. PD FS , slice thikness:3mmB: Coronal STIR with short RTC: 3D FSE isotropic sequence (CUBE,SPACE,…)D: Axial 3D FSPGR

QUIZ 5: Knee Imaging

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

QUIZ 5: Knee Imaging

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

QUIZ 5: Knee Imaging

Basics Of MRI:How I Do It AFIIM -ISRA 2015

One proposition is wrong in those 3 pictures :

A. the medial retinacular is anormalB. The bone marrow oedema is typical landmarks for ACL tearC. There is blood intra articular effusionD. The mecanism is often valgus-flexion-external rotation

QUIZ 5: Knee Imaging

Basics Of MRI:How I Do It AFIIM -ISRA 2015

One proposition is wrong in those 3 pictures :

A. the medial retinacular is anormalB. The bone marrow oedema is typical landmarks for ACL tearC. There is blood intra articular effusionD. The mecanism is often valgus-flexion-external rotation

QUIZ 5: Knee Imaging

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)

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