Cervical Spine: Three-dimensional Fast Spin-Echo MR Imaging—Improved Recovery of Longitudinal Magnetization with Driven Equilibrium Pulse

Melhem, Elias R.; Itoh, Ryuta; Folkers, Paul J. M.

doi:10.1148/radiology.218.1.r01ja38283

Cited by 30 publications

(27 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This driven equilibrium pulse transforms the residual transverse magnetization (long T 2 ) into longitudinal magnetization. 23 Compared to 2D-T 2 WI, it was possible to identify a small amount of joint eŠusion in DE-VISTA-T 2 WI. In all cases that demonstrated eŠusion of the TMJ in DE-VISTA-T 2 WI, it was possible to identify joint eŠusion in DE-VISTA-AFI.…”

Section: Discussionmentioning

confidence: 99%

Usefulness of Dual Echo Volumetric Isotropic Turbo Spin Echo Acquisition (VISTA) in MR Imaging of the Temporomandibular Joint

Sugimori¹,

Tanaka²,

Nishimura³

et al. 2013

magn reson med sci

View full text Add to dashboard Cite

Purpose: We investigated the ability to detect the articular disk and joint eŠusion of the temporomandibular joint (TMJ) of a method of dual echo volumetric isotropic turbo spin echo acquisition (DE-VISTA) additional fusion images (AFI).Methods: DE-VISTA was performed in the 26 TMJ of 13 volunteers and 26 TMJ of 13 patients. Two-dimensional (2D) dual echo turbo spin echo was performed in the 26 TMJ of 13 volunteers. On a workstation, we added proton density-weighted images (PDWI) and T 2 weighted images (T 2 WI) of the DE-VISTA per voxel to reconstruct DE-VISTA-AFI. Two radiologists reviewed these images visually and quantitatively.Results: Visual evaluation of the articular disk was equivalent between DE-VISTA-AFI and 2D-PDWI. The sliding thin-slab multiplanar reformation (MPR) method of DE-VISTA-AFI could detect all articular disks. The ratio of contrast (CR) of adipose tissue by the articular disk to that of the articular disk itself was signiˆcantly higher in DE-VISTA-AFI than DE-VISTA-PDWI (Pº0.05) in patients and volunteers with closed or open mouth. In volunteers, the CR between adipose tissue and the disk on DE-VISTA-AFI was marginally signiˆcant to that on 2D-PDWI at opened mouth (P＝0.071) and not signiˆcantly diŠerent (P＝0.18) from that at closed mouth. Joint eŠusion could be identiˆed in DE-VISTA-AFI in all 8 joints that had joint eŠusion in DE-VISTA-T 2 WI but in only 3 of those joints in 2D-T 2 WI. The CR of joint eŠusion to adipose tissue on DE-VISTA-AFI did not diŠer signiˆcantly from that on DE-VISTA-PDWI. However, using DE-VISTA-T 2 WI in addition to DE-VISTA-PDWI, we could visually identify joint eŠusion on DE-VISTA-AFI that could not be identiˆed on DE-VISTA-PDWI alone.Conclusion: DE-VISTA-AFI can depict the articular disk and a small amount of joint eŠusion by the required plane of MPR using the sliding thin-slab MPR method.

show abstract

Section: Discussionmentioning

confidence: 99%

Usefulness of Dual Echo Volumetric Isotropic Turbo Spin Echo Acquisition (VISTA) in MR Imaging of the Temporomandibular Joint

Sugimori¹,

Tanaka²,

Nishimura³

et al. 2013

magn reson med sci

View full text Add to dashboard Cite

show abstract

“…Presenting symptoms and number of MR FU examinations, as well as the elapsed period of time between the first and last MR study, were noted. The MR-systems, sequences, 25,26 and sequence parameters used are listed in Table 1.…”

Section: Methodsmentioning

confidence: 99%

Imaging of Intralabyrinthine Schwannomas: A Retrospective Study of 52 Cases with Emphasis on Lesion Growth

Tieleman¹,

Casselman²,

Somers³

et al. 2008

AJNR Am J Neuroradiol

View full text Add to dashboard Cite

show abstract

“…This method has been recently combined with fast-recovery (FR) FSE sequences [13]. The benefit of FR-FSE over conventional FSE is the dramatically reduced TR, at similar or even improved T2 contrast between tissue and fluids [14]. With FR-FSE, assuming that the transverse signal of tissue (short T2) has decayed away at the end of the FSE train, a negative 90deg (echo reset) pulse orients spins with long-T2 (e.g.…”

Section: Degenerative Disease and Chronic Instabilitymentioning

confidence: 99%

“…fluid) from the transverse plane back along the longitudinal direction leading to a much faster recovery of long T2 components to the equilibrium signal and thus better contrast between long and short T2 species. FR-FSE has demonstrated great utility also for 3D acquisitions as the TR can be substantially reduced and thus the imaging time [14].…”

Section: Degenerative Disease and Chronic Instabilitymentioning

confidence: 99%

Cutting-Edge Imaging of the Spine

Vertinsky

Krasnokutsky

Augustin

et al. 2007

Neuroimaging Clinics of North America

View full text Add to dashboard Cite

Damage to the spinal cord may be caused by a wide range of pathologies and generally results in profound functional disability. Therefore, a reliable diagnostic workup of the spine is very important because even relatively small lesions in this part of the central nervous system can have a profound clinical impact. This is primarily due to the dense arrangement of long fiber tracts extending to and from the extremities within the spinal cord. Because of its inherent sensitivity to soft tissues and its capability of displaying long segments of the vertebral column in one examination, MRI has become the method of choice for the detection and diagnosis of many disorders in the spine. A variety of innovative MRI methods have been developed to improve neuroimaging. Nevertheless, the application of these new methods to the spinal cord is, compared to its cephalad cousin, still not used that frequently. These techniques include the development of better pulse sequences and new MR contrast parameters that offer a wider spectrum of biophysical parameters in deriving a diagnosis. Overall, these new "cutting-edge" technologies have the potential to profoundly impact the ease and confidence of spinal disease interpretation and offer a more efficient diagnostic work-up of patients suffering from spinal disease.

show abstract

Cervical Spine: Three-dimensional Fast Spin-Echo MR Imaging—Improved Recovery of Longitudinal Magnetization with Driven Equilibrium Pulse

Cited by 30 publications

References 16 publications

Usefulness of Dual Echo Volumetric Isotropic Turbo Spin Echo Acquisition (VISTA) in MR Imaging of the Temporomandibular Joint

Usefulness of Dual Echo Volumetric Isotropic Turbo Spin Echo Acquisition (VISTA) in MR Imaging of the Temporomandibular Joint

Imaging of Intralabyrinthine Schwannomas: A Retrospective Study of 52 Cases with Emphasis on Lesion Growth

Cutting-Edge Imaging of the Spine

Contact Info

Product

Resources

About