mrimaster

MRI Thigh (Upper Legs) Protocols and Planning

Indications for mri thigh scan

Contraindications

Patient preparation

Positioning for mri upper legs

MRI thigh positioning photo

Recommended MRI Thigh (Hamstring ) Protocols and Planning

MRI Thigh Localizer

A three-plane localizer must be taken at the beginning to localize and plan the sequences. Localizers are normally less than 25 seconds and are T1-weighted low-resolution scans.

T2 stir coronal 5mm 460-470 FOV

Plan the coronal slices on the axial plane, and angle the positioning block parallel to the right and left hip joints. Check the positioning block in the other two planes. Ensure an appropriate angle is given in the sagittal plane (parallel to the femoral shaft). The slices must be sufficient to cover the entire thigh from anterior to posterior. The FOV must be large enough to cover the entire thigh, from the hip joints down to the knee joints.

Parameters

TR

5000-6000

TE

110

FLIP

150

NEX

2

SLICE

5 MM

MATRIX

448X384

FOV

460-480

PHASE

R>L

GAP

10%

TI

150

T1 tse coronal 5mm 460-470 FOV

Plan the coronal slices on the axial plane, and angle the positioning block parallel to the right and left hip joints. Check the positioning block in the other two planes. Ensure an appropriate angle is given in the sagittal plane (parallel to the femoral shaft). The slices must be sufficient to cover the entire thigh from anterior to posterior. The FOV must be large enough to cover the entire thigh, from the hip joints down to the knee joints.

Parameters

TR

400-600

TE

15-25

SLICE

5 MM

FLIP

160

PHASE

R>L

MATRIX

512X448

FOV

460-480

GAP

10%

NEX(AVRAGE)

2

T1 tse axial 6mm 450-470 FOV

Plan the axial slices on the coronal plane and angle the positioning block parallel to the right and left hip joints. Check the positioning block in the other two planes. An appropriate angle must be given in the sagittal plane (perpendicular to the femoral shaft). The slices must be sufficient to cover the entire thigh from the hip joints down to the knee joints. In the case of localized pathology, focus the axial block solely on that specific area.

Parameters

TR

400-600

TE

15-25

SLICE

6 MM

FLIP

160

PHASE

A>P

MATRIX

512X448

FOV

400-470

GAP

10%

NEX(AVRAGE)

2

T2 stir axial 6mm 450-470FOV

Plan the axial slices on the coronal plane and angle the positioning block parallel to the right and left hip joints. Check the positioning block in the other two planes. An appropriate angle must be given in the sagittal plane (perpendicular to the femoral shaft). The slices must be sufficient to cover the entire thigh from the hip joints down to the knee joints. In the case of localized pathology, focus the axial block solely on that specific area.

Parameters

TR

5000-6000

TE

110

FLIP

160

NEX

2

SLICE

6 MM

MATRIX

448X448

FOV

400-470

PHASE

A>P

GAP

10%

TI

150

T2 tse sagittal 5mm right

Plan the sagittal slices on the coronal plane; angle the positioning block parallel to the femoral shaft. Check the positioning block in the other two planes. An appropriate angle must be given in the axial plane (vertically across the right thigh). Slices must be sufficient to cover the right thigh from medial to the lateral aspect.

Parameters

TR

4000-5000

TE

100-120

SLICE

5 MM

FLIP

130-150

PHASE

A>P

MATRIX

512X448

FOV

460-480

GAP

10%

NEX(AVRAGE)

2

T2 tse sagittal 5mm left

Plan the sagittal slices on the coronal plane; angle the positioning block parallel to the femoral shaft. Check the positioning block in the other two planes. An appropriate angle must be given in the axial plane (vertically across the left thigh). Slices must be sufficient to cover the left thigh from medial to the lateral aspect.

Parameters

TR

4000-5000

TE

100-120

SLICE

5 MM

FLIP

130-150

PHASE

A>P

MATRIX

512X448

FOV

460-480

GAP

10%

NEX(AVRAGE)

2