The usefulness of 3D MR angiography in surgery for ruptured cerebral aneurysms

Watanabe, Zenichirou; Kikuchi, Yasuhiro; Izaki, Kenji; Hanyu, Noriaki; Lim, Fhilip Soh Hian; Gotou, Hiromi; Koizumi, Jinniti; T, Gotou; Kowada, M; Watanabe, Kazuo

doi:10.1016/s0090-3019(01)00452-9

Cited by 20 publications

(7 citation statements)

References 8 publications

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“…Although MR angiography (MRA) has given very good results in detecting aneurysms in acute SAH [18], it is often impractical in severely affected patients, due to long examination time, low spatial resolution compared to DSA, high cost, sensitivity to motion artifacts, difficulties in demonstrating vessels with low flow conditions. Due to these limitations, intracranial MRA is preferred as a screening modality for specific groups at higher risk of harbouring an aneurysm than the general population: diseases of connective tissue such as Ehlers-Danlos type IV, autosomal dominant polycystic kidney, fibro-muscular dysplasia, neurofibromatosis type 1 and α 1 antitrypsin deficiency.…”

Section: Magnetic Resonance Angiography (Mra)mentioning

confidence: 99%

Intracranial aneurysms

Gasparotti

Liserre

2005

Eur Radiol

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Section: Magnetic Resonance Angiography (Mra)mentioning

confidence: 99%

Intracranial aneurysms

Gasparotti

Liserre

2005

Eur Radiol

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“…6,10,12,18,20,21,25) One recent study found that the sensitivities of CT and MR angiography for preoperative evaluation of cerebral aneurysms larger than 3 mm in diameter were 96% and 94%, respectively, and 61% and 38% for aneurysms smaller than 3 mm in diameter, respectively, and specificity was 90% for both size ranges. 22) With improvements in CT angiography, some institutions have started to perform surgical clipping on the basis of only preoperative 3D-CT angiography, rather than digital subtraction (DS) angiography.…”

Section: Introductionmentioning

confidence: 99%

“…Some institutions have even attempted to perform surgery using only MR angiography. 18,21) Such institutions may also have to determine whether endovascular coil embolization is indicated on the basis of 3D-CT or MR angiography findings.…”

Section: Introductionmentioning

confidence: 99%

Comparing Accuracy of Cerebral Aneurysm Size Measurements From Three Routine Investigations: Computed Tomography, Magnetic Resonance Imaging, and Digital Subtraction Angiography

Takao

Murayama

Ishibashi

et al. 2010

Neurol. Med. Chir.(Tokyo)

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Modern imaging technologies, such as computed tomography (CT) angiography, magnetic resonance (MR) angiography, and digital subtraction (DS) angiography are widely used for pretreatment evaluation of cerebral aneurysms, but the relative accuracies of these modalities are unclear. This study compared the measurements of aneurysm neck and dome height and width on CT angiography, time-offlight (TOF)-MR angiography, and DS angiography using a three-dimensional workstation. An elastic model of a side-wall aneurysm was connected to an artificial heart pulsatile circuit system. The aneurysm model was prepared using a silicone membrane of 0.6-mm thickness under normal physiological circulation parameters. Using this aneurysm model, three-dimensional TOF-MR angiography, contrast-enhanced CT angiography, and DS angiography were performed. Source images were postprocessed on a dedicated workstation to calculate the aneurysm size. DS angiography measurements were found to be the most accurate. In contrast, aneurysm neck sizes measured on CT angiography were significantly wider than actual values (p º 0.05) and aneurysm heights measured using TOF-MR angiography were significantly lower than actual values (p º 0.01). In this in-vitro model, at least one aneurysm dimension measured with CT angiography and with TOF-MR angiography differed significantly from actual values. Aneurysm neck width markedly affects therapeutic planning, as a wide neck requires craniotomy or endovascular treatment using an adjunctive device, so inaccuracies should be considered when aneurysm treatment is planned using modern methods of visualization.

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“…Newer methods, unfortunately, have much lower accuracy in the diagnosis 19,20 . Newer methods, unfortunately, have much lower accuracy in the diagnosis 19,20 .…”

Section: Introductionmentioning

confidence: 99%

Assessing the quality of angiographic display of brain blood vessels aneurysms compared to intraoperative state

Nikolić¹,

Tasić²,

Jovanović³

et al. 2013

VOJNOSANIT PREGL

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The results of this study are consistent with current publications review and clearly recognize the advantages and disadvantages of diagnostic neuroradiological procedures, with DSA of brain blood vessels as a binding preoperative diagnostic procedure in cases in who it is not possible to clearly visualize the supporting blood vessel and neck of the aneurysm by using the findings of CTA, MRA and MSCTA.

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The usefulness of 3D MR angiography in surgery for ruptured cerebral aneurysms

Cited by 20 publications

References 8 publications

Intracranial aneurysms

Intracranial aneurysms

Comparing Accuracy of Cerebral Aneurysm Size Measurements From Three Routine Investigations: Computed Tomography, Magnetic Resonance Imaging, and Digital Subtraction Angiography

Assessing the quality of angiographic display of brain blood vessels aneurysms compared to intraoperative state

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