Multiple contrast fast spin-echo approach to black-blood intracranial MRA: Use of complementary and supplementary information

Liu, Keche Ng; Margosian, Paul M.

doi:10.1016/s0730-725x(01)00459-3

Cited by 9 publications

(12 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In addition is has previously been shown that black blood techniques give improved sensitivity to small vessels and immunity to irregular flow artefacts [5,6,31]. These findings are also confirmed in our series where the ability of BB to demonstrate the relationship of the aneurysm to branch vessels as well as measurement of the size of the aneurysm neck was significantly better than with 3D-TOF.…”

Section: Discussionsupporting

confidence: 89%

“…A few previous papers have examined the feasibility of using a different form of MRA, namely black or dark blood imaging (BB). This uses a fast spin echo sequence [5,6] to overcome some of the drawbacks of 3D-TOF. In this study, we will compare BB with traditional 3D-TOF and IA DSA, assessing its advantages and where it may be used to complement current practice.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Does black blood MRA have a role in the assessment of intracerebral aneurysms?

Stivaros¹,

Harris

Adams

et al. 2008

Eur Radiol

View full text Add to dashboard Cite

The aim of this study was to assess whether the addition of a black blood (BB) sequence to standard three-dimensional time-of-flight (3D-TOF) imaging yields improved quantitative assessment of intracranial aneurysms. Thirty seven patients with 42 proven intracranial aneurysms underwent intra-arterial digital subtraction angiography, 3D-TOF and BB MRI imaging. This multimodality imaging was used to create a composite reference aneurysm description. The 3D-TOF and BB imaging were graded on a subjective seven-point scale to determine what improvement if any the addition of BB imaging yielded. Comparison of measurements from all imaging modalities demonstrated no significant difference (p < 0.01) in aneurysm length/width or parent vessel width. Aneurysm neck measurements were underestimated on 3D-TOF images although there was still a significant correlation (R(2) = 0.72, p < 0.05). Comparison of TOF and BB examinations to the composite reference using the Wilcoxon signed-rank test showed significant improvement in the demonstration of the aneurysm to parent/branch vessels and the morphology/size of the aneurysm neck, particularly in the setting of local haematoma or slow flow (p < 0.001). We propose the addition of the BB sequence as a useful adjunct to 3D-TOF imaging particularly when detailed aneurysm morphology is required or there is thrombus in subarachnoid space.

show abstract

Section: Discussionsupporting

confidence: 89%

Section: Introductionmentioning

confidence: 99%

Does black blood MRA have a role in the assessment of intracerebral aneurysms?

Stivaros¹,

Harris

Adams

et al. 2008

Eur Radiol

View full text Add to dashboard Cite

show abstract

“…On the other hand, BBMRA does not present the challenges associated with TOF‐MRA . In the present study, SAH, mostly in the subacute phase, showed high signal on the source images of BBMRA, and apparently had minimal effect on minIP images.…”

Section: Discussionmentioning

confidence: 40%

“…Black‐blood MRA (BBMRA) has been proposed as an alternative to TOF‐MRA. This technique typically utilizes a non‐T 1 ‐weighted contrast spin‐echo type technique, which may overcome several issues associated with gradient‐echo based TOF‐MRA, such as image obscurity due to the hemorrhage and aneurysm clip . In the last decade, a variation of the black‐blood 3D turbo spin echo (TSE) technique was introduced, which uses nonselective a variable refocusing flip angle (VRFA) along the echo train to achieve pseudosteady‐state for a low refocusing flip angle .…”

mentioning

confidence: 99%

Three‐dimensional spin‐echo‐based black‐blood MRA in the detection of vasospasm following subarachnoid hemorrhage

Takano

Hida

Iwaasa

et al. 2018

Magnetic Resonance Imaging

View full text Add to dashboard Cite

Background Black‐blood MR angiography (BBMRA), which utilizes a non‐T1 contrast spin‐echo type technique, has been expected to overcome several issues associated with time‐of‐flight (TOF) MRA. Purpose To investigate the efficacy of BBMRA to detect vasospasms following subarachnoid hemorrhage (SAH). Study Type Retrospective. Subjects Seventeen patients with SAH in their early posttreatment period. Field Strength/Sequence BBMRA, which uses a volumetric isotropic turbo spin‐echo acquisition (VISTA), and TOF‐MRA on 1.5T scanners. Assessment Visualization of supratentorial arteries and veins in BBMRA was rated on a 4‐point scale by two neuroradiologists. Another neuroradiologist independently assessed TOF‐MRA. The degree of the vasospasm was then evaluated using a 3‐point scale by the same readers. The diagnostic performance of the MRAs was evaluated using computed tomography angiography (CTA) or digital subtraction angiography (DSA) as the standard of reference. Statistical Tests Wilcoxon signed rank test, McNemar test, and Cohen's kappa coefficient. Results BBMRA provided superior visualization of the anterior and middle cerebral arteries than TOF‐MRA (P < 0.05). The depiction of the veins was more pronounced on BBMRA (P < 0.01). Of the 166 arterial segments evaluated by CTA or DSA, 23 (13.9%) could not be assessed using TOF‐MRA because of high signal hemorrhage, whereas BBMRA enabled visualization of all the segments. Vasospasm was confirmed in 30 segments by CTA or DSA. The sensitivity, specificity, and positive and negative predictive values were 73, 96, 76, and 95 for TOF‐MRA and 91, 100, 100, and 98 for BBMRA, respectively (P = 0.13 for sensitivity, P = 0.06 for specificity). The agreement of the degree of vasospasm between MRA and the standard of reference, as indicated by kappa value, was 0.71 (95% confidence interval [CI], 0.55–0.87) for TOF‐MRA and 0.91 (95% CI, 0.82–0.99) for BBMRA. Data Conclusion BBMRA, owing to its contrast properties, may be superior to TOF‐MRA for the evaluation of intracranial arteries after SAH. Level of Evidence: 3 Technical Efficacy: Stage 2 J. Magn. Reson. Imaging 2019;49:800–807.

show abstract

“…However, the TOF technique has limitations for visualizing slow‐ or turbulent‐flow arterial branches due to spin saturation or intravoxel dephasing. In contrast, a black‐blood (BB) sequence is known as an alternative MR angiographic technique for visualizing such vessels (1–4). The BB technique, however, is limited in demonstrating very slow flow without incorporating an inversion recovery preparation pulse (5, 6).…”

mentioning

confidence: 99%

Hybrid of opposite‐contrast MRA of the brain by combining time‐of‐flight and black‐blood sequences: Initial experience in major trunk stenoocclusive diseases

Tsuchiya

Kobayashi

Nitatori

et al. 2009

Magnetic Resonance Imaging

View full text Add to dashboard Cite

Purpose: To assess the feasibility of a new MR angiography (MRA) technique named hybrid of opposite-contrast MRA (HOP MRA) that combined the time-of-flight (TOF) MRA with a flow-sensitive black-blood (FSBB) sequence in the diagnosis of major trunk stenoocclusive diseases.Materials and Methods: On a 1.5 Tesla imager using a dual-echo three-dimensional (3D)-gradient-echo sequence, we obtained the first echo for TOF MRA followed by the second echo for FSBB. We then subtracted the FSBB data set from that of TOF MRA followed by maximum intensity projection. In four normal volunteers and 19 patients with chronic stenoocclusive disease of the major trunk, we performed HOP MRA along with 3D-TOF MRA and compared the findings.Results: In the volunteer group, the HOP MRA technique improved the demonstration of distal arterial branches. In 12 of the 19 patients, the HOP MRA better visualized branches distal to the lesion as well as distal branches of normal trunks than 3D-TOF MRA, while both techniques provided equivalent depiction of branches distal to the lesion but better depiction of normal distal branches in three patients. Conclusion:The HOP-MRA technique is promising in major trunk stenoocclusive diseases as it better demonstrates distal branches probably representing collaterals than 3D-TOF MRA.

show abstract

Multiple contrast fast spin-echo approach to black-blood intracranial MRA: Use of complementary and supplementary information

Cited by 9 publications

References 16 publications

Does black blood MRA have a role in the assessment of intracerebral aneurysms?

Does black blood MRA have a role in the assessment of intracerebral aneurysms?

Three‐dimensional spin‐echo‐based black‐blood MRA in the detection of vasospasm following subarachnoid hemorrhage

Hybrid of opposite‐contrast MRA of the brain by combining time‐of‐flight and black‐blood sequences: Initial experience in major trunk stenoocclusive diseases

Contact Info

Product

Resources

About