Brain Magnetic Resonance Imaging at 3 Tesla Using BLADE Compared With Standard Rectilinear Data Sampling

Wintersperger, Bernd J.; Runge, Val M.; Biswas, Jonmenjoy; Nelson, Chas; Stemmer, Alto; Simonetta, Alexander B.; Reiser, Maximilian; Naul, L. Gill; Schoenberg, Stefan O.

doi:10.1097/01.rli.0000223742.35655.24

Cited by 66 publications

(67 citation statements)

References 18 publications

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“…There have been no previous reports comparing SNR between cVIBE and rVIBE in a phantom study. Although the reasons for the higher SNR with rVIBE are unclear, the reason can be explained by the repeated acquisition around the center of k-space compared with standard Cartesian k-space readout, and uncorrected higher frequency data in kx-ky because of cylindrical shape of stack-of-stars trajectory [21][22][23].…”

Section: Discussionmentioning

confidence: 99%

Free-Breathing Hepatobiliary Phase Gd-EOB-DTPA-Enhanced MR Imaging with Radial VIBE Sequence: Comparison with Conventional Cartesian VIBE Sequence

Sasaki¹,

Fukukura²,

Kumagae³

et al. 2017

OMICS J Radiol

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Section: Discussionmentioning

confidence: 99%

Free-Breathing Hepatobiliary Phase Gd-EOB-DTPA-Enhanced MR Imaging with Radial VIBE Sequence: Comparison with Conventional Cartesian VIBE Sequence

Sasaki¹,

Fukukura²,

Kumagae³

et al. 2017

OMICS J Radiol

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“…T 1 -FLAIR-BLADE could not achieve higher image quality scores than T 1 -SE in a small minority of cases, perhaps because of the occasional generation of another unique artifact by BLADE (wrap artifact 6 ), especially in those cases with severe head motion (Fig. 2).…”

Section: Magnetic Resonance In Medical Sciencesmentioning

confidence: 99%

“…On T 1 -SE images, the border between the gray and white matter of the cerebellum tends to be aŠected by a pulsation artifact from the sigmoid sinus. Previous clinical studies have shown that a BLADE acquisition can reduce pulsation artifacts from the transverse and sigmoid sinuses at T 2 -FLAIR imaging 6 and contrast-enhanced T 1 -FLAIR in adults. 8 The reduction of this artifact from the venous sinus was also achieved in non-contrast-enhanced T 1 -FLAIR-BLADE in children.…”

Section: Magnetic Resonance In Medical Sciencesmentioning

confidence: 99%

“…The clinical use of T 1 -FLAIR-BLADE has been reported with or without gadolinium enhancement for brain imaging in adults 6,8,9 and with gadolinium contrast for brain imaging in children. 10 However, we believe the utility of T 1 -FLAIR-BLADE as a non-contrast-enhanced T 1 -weighted sequence in pediatric patients has not been well established.…”

Section: Blade [T 1 -Flair-blade])mentioning

confidence: 99%

“…1 BLADE has been increasingly applied in clinical settings, and its utility in acquiring T 2 -weighted images has been reported. [2][3][4][5][6] However, the application of this technique to conventional spin-echo T 1 -weighted imaging (T 1 -SE) is not straightforward because the rather long echo-train length the BLADE sequence requires to make à`b lade'' prolongs echo time (TE). When aiming to obtain aˆne T 1 contrast, the relatively long TE to acquire k-space information is a disadvantage.…”

Section: Introductionmentioning

confidence: 99%

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Effective Performance of T1-weighted FLAIR Imaging with BLADE in Pediatric Brains

et al. 2012

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Purpose: In magnetic resonance imaging of the brain, BLADE is used to compensate for head motion. The technique focuses mainly on acquisition of T 2 -weighted or contrast-enhanced T 1 -weighted images in adults; its utility for nonenhanced T 1 -weighted imaging in children is not well established. We compared the quality of T 1 -weighted ‰uid-attenuated inversion recovery brain imaging with BLADE (T 1 -FLAIR-BLADE) to that of conventional spin-echo T 1 -weighted imaging (T 1 -SE) in pediatric patients who cannot stay still during MR imaging.Materials and Methods: Our investigation included a volunteer study and a retrospective clinical study. Six healthy adult volunteers underwent scanning to compare the contrast of T 1 -SE, T 1 -weighted ‰uid-attenuated inversion recovery imaging (T 1 -FLAIR), and T 1 -FLAIR-BLADE at both 1.5 and 3 tesla. Comparison was based on scores assigned independently by 2 blinded observers and by calculated contrast-to-noise ratio. The clinical study included 20 children who underwent both T 1 -SE and T 1 -FLAIR-BLADE at either 1.5 (n＝9) or 3 T (n＝11). On each sequence, 2 blinded observers independently scored visualization of the cerebral gyri and contrast between gray and white matter. We compared scores between sequences separately for 1.5 and 3T using Wilcoxon signed-rank tests.Results: At both 1.5 and 3T, contrast was better using T 1 -FLAIR and T 1 -FLAIR-BLADE than T 1 -SE in volunteers, and overall scores were signiˆcantly higher with T 1 -FLAIR-BLADE (Pº0.05) than T 1 -SE in the clinical study.Conclusion: T 1 -FLAIR-BLADE may be superior to T 1 -SE in demonstrating brain structures in children who cannot stay still and may be used to supplement or replace T 1 -SE when T 1 -SE is insu‹cient for patient motion.

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Diterpenoid biopolymers: New directions for renewable materials engineering

2010

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Most types of ambers are naturally occurring, relatively hard, durable resinite polymers derived from the exudates of trees. This resource has been coveted for thousands of years due to its numerous useful properties in industrial processes, beauty, and purported medicinal properties. Labdane diterpenoid‐based ambers represent the most abundant and important resinites on earth. These resinites are a dwindling nonrenewable natural resource, so a new source of such materials needs to be established. Recent advances in sequencing technologies and biochemical engineering are rapidly accelerating the rate of identifying and assigning function to genes involved in terpenoid biosynthesis, as well as producing industrial‐scale quantities of desired small‐molecules in bacteria and yeast. This has provided new tools for engineering metabolic pathways capable of producing diterpenoid monomers that will enable the production of custom‐tailored resinite‐like polymers. Furthermore, this biosynthetic toolbox is continuously expanding, providing new possibilities for renewing dwindling stocks of naturally occurring resinite materials and engineering new materials for future applications. © 2010 Wiley Periodicals, Inc. Biopolymers 95: 71–76, 2011.

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Brain Magnetic Resonance Imaging at 3 Tesla Using BLADE Compared With Standard Rectilinear Data Sampling

Abstract: PROPELLER (BLADE) brain magnetic resonance imaging is also applicable at 3 T. In addition to minimizing motion artifacts, the PROPELLER acquisition scheme reduces other magnetic resonance artifacts that would otherwise degrade scan quality.

Cited by 66 publications

References 18 publications

Free-Breathing Hepatobiliary Phase Gd-EOB-DTPA-Enhanced MR Imaging with Radial VIBE Sequence: Comparison with Conventional Cartesian VIBE Sequence

Free-Breathing Hepatobiliary Phase Gd-EOB-DTPA-Enhanced MR Imaging with Radial VIBE Sequence: Comparison with Conventional Cartesian VIBE Sequence

Effective Performance of T1-weighted FLAIR Imaging with BLADE in Pediatric Brains

Diterpenoid biopolymers: New directions for renewable materials engineering

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