mrimaster

HAND

Indications for hand MRI scan

Contraindications

Patient preparation

Positioning

MRI hand positioning

Suggested sequence, parameters and planning

Localiser

A three-plane localizer must be taken at the beginning to localize and plan the sequences. Typically, these localizers take less than 25 seconds and can be achieved using T1 weighted low-resolution scans. It is advisable to obtain additional localizers until you have acquired accurate axial, coronal, and sagittal localizer images.

MRI hand localiser planning image

T2 stir axial 3mm

Plan the axial slices on the coronal localizer and angle the planning block perpendicular to the metacarpal and phalangeal bones. Check the planning block in the other two planes. An appropriate angle must be used in the sagittal plane, perpendicular to the metacarpal and phalangeal bones. The slices should be sufficient to cover the entire hand, from the tip of the fingers to the line of the distal radioulnar joint.

Parameters

TR

5000-6000

TE

110

FLIP

130

NEX

2

SLICE

3MM

MATRIX

384X320

FOV

150-180

PHASE

A>P

GAP

10%

TI

160

T1 tse axial 3mm

Plan the axial slices on the coronal localizer and angle the planning block perpendicular to the metacarpal and phalangeal bones. Check the planning block in the other two planes. An appropriate angle must be used in the sagittal plane, perpendicular to the metacarpal and phalangeal bones. The slices should be sufficient to cover the entire hand, from the tip of the fingers to the line of the distal radioulnar joint.

Parameters

TR

400-600

TE

15-25

SLICE

3 MM

FLIP

130

PHASE

A>P

MATRIX

400X384

FOV

150-180

GAP

10%

NEX(AVRAGE)

2

T1 tse coronal 2mm

Plan the coronal slices on the axial plane, angling the planning block parallel to the line across the metacarpal bones. Check the planning block in the other two planes. An appropriate angle must be used in the sagittal plane, parallel to the metacarpal and phalangeal bones. The slices must be sufficient to cover the entire hand from the dorsal to palmar aspect.

MRI hand coronal planning

Parameters

TR

400-600

TE

15-25

SLICE

2 MM

FLIP

130

PHASE

R>L

MATRIX

384X384

FOV

170-190

GAP

10%

NEX(AVRAGE)

2

T2 stir coronal 2mm

Plan the coronal slices on the axial plane, angling the planning block parallel to the line across the metacarpal bones. Check the planning block in the other two planes. An appropriate angle must be used in the sagittal plane, parallel to the metacarpal and phalangeal bones. The slices must be sufficient to cover the entire hand from the dorsal to palmar aspect.

MRI hand coronal planning

Parameters

TR

3000-4000

TE

110

FLIP

130

NEX

2

SLICE

2 MM

MATRIX

320X320

FOV

170-190

PHASE

R>L

GAP

10%

TI

160

T2 stir sagittal 3mm

Plan the sagittal slices on the axial plane; angle the planning block perpendicular to the line across the metacarpal bones. Check the planning block in the other two planes. An appropriate angle must be used in the coronal plane (parallel to the metacarpal and phalangeal bones). Slices must be sufficient to cover the whole hand from medial aspect to lateral aspect.

Parameters

TR

4000-5000

TE

110

FLIP

130

NEX

2

SLICE

3MM

MATRIX

320X320

FOV

170-190

PHASE

A>P

GAP

10%

TI

160