CARDIAC MASS

Notes

· If possible, the supervising radiologist should review the initial images to localize the cardiac mass and determine the proper imaging planes for the rest of the exam. The following table lists suggested image planes...

· Gadolinium dose- 0.1 mmol/kg Multihance

Pulse Sequences

1. 3 Plane Survey

Axial Plane

2. B-TFE

3. e-THRIVE PRE

4. INTERACTIVE

Cardiac imaging planes should be selected based on the location of the mass

5. BB_SSh

6. T2W-BB

7. T1_TSE-BB

8. T1_TSE-BB FS

9. IR_TFE_3D_BH *(IR 400-500)

10. DYNAMIC FIRST-PASS PERFUSION

11. IR_TFE_3D_BH *(IR 400-500) (same cardiac plane as pre-contrast series)

12. e-THRIVE POST (axial plane)

13. B-TFE_BH (Short Axis) *This series is used for ejection fraction calculation and should be relatively motion free.

14. B-TFE_BH (4 chamber, 2 chamber, etc)

15. B-TFE_BH *(Optional only if time allows) (4 chamber, 2 chamber, etc)

16. IR_TFE_LOOKLOCKER

17. IR_TFE_3D_BH (Short Axis, 4 chamber, 2 chamber, etc)

18. IR_TFE_3D_BH (Short Axis, 4 chamber, 2 chamber, etc)

19. IR_TFE_3D_BH *(Optional only if time allows) (4 chamber, 2 chamber, etc)

References

Ø Cardiovascular MRI Articles

Ø Standardized cardiovascular magnetic resonance imaging (CMR) protocols, society for cardiovascular magnetic resonance: board of trustees task force on standardized protocols http://scmr.org/assets/files/1532-429X-10-35.pdf

Phase Contrast Articles

Ø Cardiovascular Applications of Phase-Contrast MRI http://www.ajronline.org/cgi/content/full/192/3/662

Ø Cardiovascular Flow Measurement with Phase-Contrast MR Imaging: Basic Facts and Implementation http://radiographics.rsna.org/content/22/3/651.full

SVC and Inferior Vena Cava:

The encoding velocity for the first measurement or for flow measurement is 110 cm/sec. The usual velocity for peak velocity measurement is 50–80 cm/sec.

Ascending Aorta:

The encoding velocity for the first measurement or for flow measurement is 200 cm/sec. The usual velocity for peak velocity measurement is 100–160 cm/sec.

Main Pulmonary Artery:

The encoding velocity for the first measurement or for flow measurement is 180 cm/sec. The usual velocity for peak velocity measurement is 60–120 cm/sec.

Right and Left Pulmonary Arteries:

The encoding velocity for the first measurement or for flow measurement is 200 cm/sec. The usual velocity for peak velocity measurement is 60–120 cm/sec.

Ø Quantification of Flow Dynamics in Congenital Heart Disease: Applications of Velocity-encoded Cine MR Imaging http://radiographics.rsna.org/content/22/4/895.full

Rev: 5/13/10