Three-dimensional display of the orifice of intracranial aneurysms: a new potential application for magnetic resonance angiography

Bontozoglou, Nikos; Spanos, H; Lasjaunias, P.; Zarifis, G.

doi:10.1007/bf00612115

Cited by 19 publications

(3 citation statements)

References 11 publications

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“…We show two select cases with cerebral aneurysms having homogeneous hyperintensity in the dome (Figs. 1 and 2) and one case with multiple stenoocclusive changes of the intracranial arteries (Fig. 3).…”

Section: Intravascular Virtual Mr Endoscopic Imagingmentioning

confidence: 94%

“…To our knowledge, however, there is no study evaluating the clinical value of the perspective volume-rendering method in assessment of the cerebral aneurysms. Only the nonperspective 3D display (multithreshold SSD) of MR angiography has been reported for the endovascular evaluation of the intracranial aneurysms (1,2), and additional information to the digital subtraction angiography was obtained on aneurysms, including the aneurysmal sac, orifice, and neck, and/or the relationship to the parent vessel and adjacent vasculatures (1).…”

Section: Intravascular Virtual Mr Endoscopic Imagingmentioning

confidence: 99%

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Invited III. New developments: 2. Virtual MR endoscopy in the central nervous system

Shigematsu¹,

Korogi²,

Hirai³

et al. 1998

Magnetic Resonance Imaging

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Recent advances in three-dimensional (3D) data acquisition and postprocessing technologies have been playing a important role in widening the potential applications of 3D display. The authors described new applications of a virtual endoscopic algorithm for 3D display of high resolution MR images: (a) intracranial intravascular virtual MR endoscopy using the 3D fast imaging with steady state precession (FISP) sequence, and (b) virtual MR endoscopy of the cerebrospinal fluid (CSF) spaces using the constructive interference in steady state (CISS) three-dimensional Fourier transform (3DFT) sequence. The virtual endoscopic images were displayed with use of a commercially available perspective volume-rendering algorithm. Our initial experience showed that virtual MR endoscopy can be performed to observe the intracranial arteries and CSF spaces from the viewpoints within themselves. Although the clinical use of the intracranial virtual MR endoscopy has not been established yet, the images obtained are very attractive and further investigations in this field will be expected.

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Section: Intravascular Virtual Mr Endoscopic Imagingmentioning

confidence: 94%

Section: Intravascular Virtual Mr Endoscopic Imagingmentioning

confidence: 99%

Invited III. New developments: 2. Virtual MR endoscopy in the central nervous system

Shigematsu¹,

Korogi²,

Hirai³

et al. 1998

Magnetic Resonance Imaging

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show abstract

“…The use of intravascular virtual MR endoscopy for the evaluation of intracranial aneurysms is quite rare. İn a different study, Bontozoglou et al (3,4) described the size of the aneurysmal sac and its orifice using 3D endovascular MR angiography via an orthographic rendering method. As far as we know, only Shigematsu et al (20) described the use of intravascular virtual MR endoscopy …”

Section: Incesu L Et Al: Mr Endoscopy In Cerebral Aneurysmsmentioning

confidence: 99%

Intravascular virtual MR endoscopy evaluation of cerebral aneurysms

İncesu

Aslan²,

Polat³

et al. 2013

Turkish Neurosurgery

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AIm:The aim of this study was to evaluate the role of intravascular virtual MR endoscopy in the planning of correct surgical clipping of the aneurysm neck. mATeRIAL and meTHods: A total of 36 aneurysms were detected by using magnetic resonance angiography (MRA) in thirty patients. Intravascular virtual MR endoscopy is a realistic 3-dimensional simulation of intravascular structures that is generated by postprocessing of MRA maximum-intensity projection images. The images were evaluated by two neuroradiologists, in terms of image quality via qualitative analysis of MRA and intravascular virtual MR endoscopy of the orifice of the aneurysm neck, as well as the relationship of the main and bifurcating arteries with the orifice of the aneurysm. The readers were fully blinded. Mann-Whitney U test was used to compare the differences in mean scores for each reader between these two groups.ResuLTs: Based on the scoring system, evaluating image quality using qualitative analysis, both readers found the mean scores to be 3.82 ± 0.52 and 3.91 ± 0.72 for intravascular virtual MR endoscopy, and 2.97 ± 0.71 and 2.89 ± 0.83 for MRA, which was statistically different (p<0.001).CoNCLusIoN: Intravascular virtual MR endoscopy may provide useful knowledge in the proper the surgical clipping of the aneurysm neck.KeywoRds: Cerebral aneurysm, Intravascular virtual MR endoscopy, Magnetic resonance angiography ÖZ AmAÇ: Bu çalışmanın amacı, anevrizma boynunun doğru cerrahi kliplenmesinin planlanmasında intravasküler sanal MR endoskopinin rolünü değerlendirmektir. yÖNTem ve GeReÇLeR: 30 hastada 36 anevrizma magnetik rezonans anjiyografi (MRA) kullanılarak ortaya çıkarıldı. İntravasküler sanal MR endoskopi, MRA maximum-intensity projeksiyon görüntülemenin işlenmesinden üretilen intravasküler yapıların gerçekçi 3 boyutlu simülasyonudur. İki nöroradyolog tarafından MRA ve intravasküler sanal MR endoskopide anevrizma boynunun orifisi ve anevrizmanın orifisi ile bifurkasyon arter ve ana arterin ilişkisi kalitatif analiz vasıtasıyla görüntü kalitesi açısından değerlendirildi. İki okuyucu tamamen bağımsızdı. Bu iki grup arasındaki her bir okuyucu için ortalama puan farkının anlamlılığına Mann-Whitney testi ile karşılaştırıldı.BuLGuLAR: Kalitatif analiz kullanılarak görüntü kalitesini puanlama sistemine göre değerlendirilmesinde her iki okuyucu intravasküler sanal MR endoskopi için 3.82 ± 0.52 ve 3.91 ± 0.72; MRA için 2.97 ± 0.71 ve 2.89 ± 0.83 ortalama skora sahipti ve bu fark istatistiksel olarak anlamlıydı (p<0.001).soNuÇ: İntravasküler sanal MR endoskopi anevrizma boynunun uygun cerrahi kliplenmesinde faydalı bilgi sağlayabilir.ANAHTAR sÖZCÜKLeR: Serebral anevrizma, İntravasküler sanal MR endoskopi, Magnetik rezonans anjiyografi

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Magnetic Resonance Angiography and Flow Imaging

Gibby¹

2000

Neuroimaging

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Three-dimensional display of the orifice of intracranial aneurysms: a new potential application for magnetic resonance angiography

Cited by 19 publications

References 11 publications

Invited III. New developments: 2. Virtual MR endoscopy in the central nervous system

Invited III. New developments: 2. Virtual MR endoscopy in the central nervous system

Intravascular virtual MR endoscopy evaluation of cerebral aneurysms

Magnetic Resonance Angiography and Flow Imaging

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