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Comparative Study
. 2004 Oct;25(9):1628-9; author reply 1629.

The time for 3T clinical imaging is now

Marc D Shapiro, Tom Magee, David Williams, Rick Ramnath, Jeffrey S Ross
Comparative Study

The time for 3T clinical imaging is now

Marc D Shapiro et al. AJNR Am J Neuroradiol. 2004 Oct.
No abstract available

PubMed Disclaimer

Figures

F<sc>ig</sc> 1.
Fig 1.
5 mm Axial T2 TSE obtained on 1.5T in a patient with tuberous scvlerosis showing equivocal lesion (arrow tip) adjacent to left foramen of Monro.
F<sc>ig</sc> 2.
Fig 2.
4 mm Axial T2 FSE, 512 × 384, obtained on 3T 12 weeks later in same patient as Figure 1 with arrow tip on more obvious lesin adjacent to left foramen of Monro. Note increased flow artifacts in phase direction which are exacerbated by 3T. These will be significantly diminished with multidirectional flow comp or with a 3D T2FSE acquisition.
F<sc>ig</sc> 3.
Fig 3.
1 mm Direct Sagittal FLAIR FSE, 256 × 256, demonstrating the only lesions (3mm subependymal nodule [white arrow] and a 2mm subcortical tuber [black arrow]) in another patient with tuberous sclerosis.
F<sc>ig</sc> 4.
Fig 4.
1 mm Reformatted Coronal T1 FSPGR from same patient as Figure 3 obtained in the axial plane with 1mm isotropic voxels, 256 × 256, revealing the subependymal nodule (black arrow) in the superolateral aspect of the left lateral ventricle.
F<sc>ig</sc> 5.
Fig 5.
2 mm Sagittal T1 FSE obtained on 3T showing adequate cord visualization (in patient with a previous anterior fusion) by varying 5 parameters (increasing bandwidth and echo train length [ETL], decreasing slice thickness and TE, and orienting frequency encoding gradient parallel to long axis of metal).
F<sc>ig</sc> 6.
Fig 6.
2 mm Sagittal T2 FSE at 3T from same patient as Figure 5 demonstrating good visualization of the spinal cord by using the aforementionted techniques.
F<sc>ig</sc> 7.
Fig 7.
3 mm T2 Axial T2 FSE with fat sat through the C6-7 foramina, demonstrates adequate visualization of cord and nerve roots (except proximal left C7). If this acquisition had been obtained with 2 mm slice thickness as well as maximum bandwidth and ETL and the lowest TE, the left C7 root may have been seen in its entirety.
See this image and copyright information in PMC

Comment on

  • The high-field-strength curmudgeon.
    Ross JS. Ross JS. AJNR Am J Neuroradiol. 2004 Feb;25(2):168-9. AJNR Am J Neuroradiol. 2004. PMID: 14970013 Free PMC article. No abstract available.

References

    1. Ross J. The high-field-strength curmudgeon. AJNR Am J Neuroradiol 2004;25:168–169 - PMC - PubMed
    1. Lin W, An H, Chen Y, et al. Practical consideration for 3T imaging. Mag Reson Imaging Clin N Am 2003;2:624–627 - PubMed
    1. Jellison BJ, Wu Y, Field AS, et al. Propeller-MR for diffusion-weighted imaging in regions of magnetic field inhomogeneity: brain and cervical spinal cord. Presented at the 41st annual meeting of the American Society of Neuroradiology, Washington, DC, April 27–May 2, 2003. .
    1. Gibb GF, Huston III J, Bernstein MA. Improved image quality of intracranial aneurysms: 3.0T versus 1.5T time-of-flight MR angiography AJNR Am J Neuroradiol 2004;25:8487 - PMC - PubMed