CT angiography, MR angiography and rotational digital subtraction angiography for volumetric assessment of intracranial aneurysms: an experimental study

Piotin, M. and Gailloud, P. and Bidaut, L. and Mandai, S. and Muster, M. and Morei, J. and Rufenacht, D. A. (2003) CT angiography, MR angiography and rotational digital subtraction angiography for volumetric assessment of intracranial aneurysms: an experimental study. Neuroradiology, 45 (6). pp. 404-409. ISSN 0028-3940

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Item Type:Article
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Abstract

The purpose of our experimental study was to assess the accuracy and precision of CT angiography (CTA), MR angiography (MRA) and rotational digital subtraction angiography (DSA) for measuring the volume of an in vitro aneurysm model. A rigid model of the anterior cerebral circulation harbouring an anterior communicating aneurysm was connected to a pulsatile circuit. It was studied using unenhanced 3D time-of-flight MRA, contrast-enhanced CTA and rotational DSA angiography. The source images were then postprocessed on dedicated workstations to calculate the volume of the aneurysm. CTA was more accurate than MRA (P = 0.0019). Rotational DSA was more accurate than CTA, although the difference did not reach statistical significance (P = 0.1605), and significantly more accurate than MRA (P < 0.00001). CTA was more precise than MRA (P = 0.12), although this did not reach statistical significance. Rotational DSA can be part of the diagnosis, treatment planning and support endovascular treatment of intracranial aneurysms. The emerging endovascular treatment techniques which consist of using liquid polymers as implants to exclude aneurysms from arterial circulation would certainly benefit from this precise measurement of the volume of aneurysms.

Keywords:anterior communicating artery, article, brain angiography, brain circulation, controlled study, diagnostic accuracy, digital subtraction angiography, endovascular surgery, in vitro study, intermethod comparison, intracranial aneurysm, magnetic resonance angiography, priority journal, statistical significance, treatment planning, volumetry, Angiography, Digital Subtraction, Carotid Artery, Internal, Cerebrovascular Circulation, Contrast Media, Humans, Observer Variation, Postmortem Changes, Pulsatile Flow, Tomography, X-Ray Computed, Ultrasonography, Doppler, Transcranial
Subjects:B Subjects allied to Medicine > B100 Anatomy, Physiology and Pathology
Divisions:College of Science > School of Computer Science
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ID Code:24154
Deposited On:07 Apr 2017 10:29

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