Photon-counting CT imaging of a patient with coiled and untreated intracranial saccular aneurysms.

IF 0.8 Q4 NEUROIMAGING
Neuroradiology Journal Pub Date : 2025-10-01 Epub Date: 2025-01-29 DOI:10.1177/19714009251313514
Adrienn Tóth, Jennifer Y Cho, Evan Wilson, Jim O'Doherty, Maria Vittoria Spampinato
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引用次数: 0

Abstract

We describe a novel application of photon-counting detector CT (PCD-CT) in neurovascular imaging by harnessing the improved spatial resolution, attenuation of electronic noise, and reduction of metal artifacts. The presented case offers the unique challenge of high-quality imaging for the assessment of treated and untreated intracranial saccular aneurysms, in the setting of metal artifacts from embolization coils. Our goal was to explore optimized reconstruction parameters for ultra-high-resolution imaging (UHR) using a dedicated, sharp neurovascular kernel (Hv72) and the highest strength of quantum iterative reconstruction (QIR-4) for detailed characterization of the vasculature. Virtual monoenergetic images (VMIs) and iterative metal artifact reduction (IMAR) were employed to investigate metal artifact reduction techniques. PCD-CT has the promising potential to enhance patient care in the follow-up of patients with treated aneurysms requiring more complex imaging parameters and image post-processing due to intracranial artifacts.

一名颅内囊状动脉瘤患者的光子计数 CT 成像。
我们描述了光子计数检测器CT (PCD-CT)在神经血管成像中的新应用,通过利用改进的空间分辨率、电子噪声的衰减和金属伪影的减少。本病例提供了独特的高质量成像评估治疗和未治疗的颅内囊状动脉瘤,在金属假物栓塞线圈的设置。我们的目标是利用专用的尖锐神经血管核(Hv72)和最高强度的量子迭代重建(QIR-4)探索超高分辨率成像(UHR)的优化重建参数,以详细表征血管系统。采用虚拟单能图像(vmi)和迭代金属伪影还原(IMAR)技术对金属伪影还原技术进行了研究。对于因颅内伪影而需要更复杂成像参数和图像后处理的动脉瘤患者,PCD-CT在随访中具有增强患者护理的潜力。
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来源期刊
Neuroradiology Journal
Neuroradiology Journal NEUROIMAGING-
CiteScore
2.50
自引率
0.00%
发文量
101
期刊介绍: NRJ - The Neuroradiology Journal (formerly Rivista di Neuroradiologia) is the official journal of the Italian Association of Neuroradiology and of the several Scientific Societies from all over the world. Founded in 1988 as Rivista di Neuroradiologia, of June 2006 evolved in NRJ - The Neuroradiology Journal. It is published bimonthly.
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