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DSA volumetric 3D reconstructions of intracranial aneurysms: A pictorial essay.

Cieściński J, Serafin Z, Strześniewski P, Lasek W, Beuth W - Pol J Radiol (2012)

Bottom Line: A gold standard of cerebral vessel imaging remains the digital subtraction angiography (DSA) performed in three projections.In this pictorial essay, specific applications of this technique are presented in the management of intracranial aneurysms, including: preoperative aneurysm evaluation, intraoperative imaging, and follow-up.Volumetric reconstructions of 3D DSA are a valuable tool for cerebral vessels imaging.

View Article: PubMed Central - PubMed

Affiliation: Department of Radiology and Diagnostic Imaging, Nicolaus Copernicus University, Collegium Medicum, Bydgoszcz, Poland.

ABSTRACT
A gold standard of cerebral vessel imaging remains the digital subtraction angiography (DSA) performed in three projections. However, in specific clinical cases, many additional projections are required, or a complete visualization of a lesion may even be impossible with 2D angiography. Three-dimensional (3D) reconstructions of rotational angiography were reported to improve the performance of DSA significantly. In this pictorial essay, specific applications of this technique are presented in the management of intracranial aneurysms, including: preoperative aneurysm evaluation, intraoperative imaging, and follow-up. Volumetric reconstructions of 3D DSA are a valuable tool for cerebral vessels imaging. They play a vital role in the assessment of intracranial aneurysms, especially in evaluation of the aneurysm neck and the aneurysm recanalization.

No MeSH data available.


Related in: MedlinePlus

Recanalization of the right internal carotid artery aneurysm. The recanalization is apparent on the 3D reconstruction (A, arrow), but not on 2D subtracted image (B, arrow).
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f10-poljradiol-77-2-47: Recanalization of the right internal carotid artery aneurysm. The recanalization is apparent on the 3D reconstruction (A, arrow), but not on 2D subtracted image (B, arrow).

Mentions: Detection of an aneurysm recurrence is crucial for patient’s prognosis, because incomplete occlusion of the aneurysm may result in serious or fatal consequences [8]. Follow-up of embolized aneurysms with 3D DSA enables the detection of a residual flow, localization of its origin, and evaluation of adjacent vessel branches (Figures 10, 11). Since the size of the leakage is crucial for the decision on reembolization, three-dimensional measurement of the refilling area without the need for calibration is very helpful. Moreover, it is proposed that magnetic resonance angiography (MRA) should be a primary follow-up imaging modality after coiling, because it offers similar diagnostic performance, is cheaper, safer, and less time-consuming [8,9]. Therefore, 3D DSA remains a reference method for cases of inconclusive MR results, and a method of confirmation of a detected recanalization.


DSA volumetric 3D reconstructions of intracranial aneurysms: A pictorial essay.

Cieściński J, Serafin Z, Strześniewski P, Lasek W, Beuth W - Pol J Radiol (2012)

Recanalization of the right internal carotid artery aneurysm. The recanalization is apparent on the 3D reconstruction (A, arrow), but not on 2D subtracted image (B, arrow).
© Copyright Policy - open-access
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC3403801&req=5

f10-poljradiol-77-2-47: Recanalization of the right internal carotid artery aneurysm. The recanalization is apparent on the 3D reconstruction (A, arrow), but not on 2D subtracted image (B, arrow).
Mentions: Detection of an aneurysm recurrence is crucial for patient’s prognosis, because incomplete occlusion of the aneurysm may result in serious or fatal consequences [8]. Follow-up of embolized aneurysms with 3D DSA enables the detection of a residual flow, localization of its origin, and evaluation of adjacent vessel branches (Figures 10, 11). Since the size of the leakage is crucial for the decision on reembolization, three-dimensional measurement of the refilling area without the need for calibration is very helpful. Moreover, it is proposed that magnetic resonance angiography (MRA) should be a primary follow-up imaging modality after coiling, because it offers similar diagnostic performance, is cheaper, safer, and less time-consuming [8,9]. Therefore, 3D DSA remains a reference method for cases of inconclusive MR results, and a method of confirmation of a detected recanalization.

Bottom Line: A gold standard of cerebral vessel imaging remains the digital subtraction angiography (DSA) performed in three projections.In this pictorial essay, specific applications of this technique are presented in the management of intracranial aneurysms, including: preoperative aneurysm evaluation, intraoperative imaging, and follow-up.Volumetric reconstructions of 3D DSA are a valuable tool for cerebral vessels imaging.

View Article: PubMed Central - PubMed

Affiliation: Department of Radiology and Diagnostic Imaging, Nicolaus Copernicus University, Collegium Medicum, Bydgoszcz, Poland.

ABSTRACT
A gold standard of cerebral vessel imaging remains the digital subtraction angiography (DSA) performed in three projections. However, in specific clinical cases, many additional projections are required, or a complete visualization of a lesion may even be impossible with 2D angiography. Three-dimensional (3D) reconstructions of rotational angiography were reported to improve the performance of DSA significantly. In this pictorial essay, specific applications of this technique are presented in the management of intracranial aneurysms, including: preoperative aneurysm evaluation, intraoperative imaging, and follow-up. Volumetric reconstructions of 3D DSA are a valuable tool for cerebral vessels imaging. They play a vital role in the assessment of intracranial aneurysms, especially in evaluation of the aneurysm neck and the aneurysm recanalization.

No MeSH data available.


Related in: MedlinePlus