Enhanced Preoperative Planning for Intracranial Aneurysms Through Multimodal Image Fusion of Silent/Time-of-Magnetic Resonance Angiography and Computed Tomography Using 3DSlicer: A Comparative Efficacy Analysis With Computed Tomography Angiography.

IF 1.1 4区 医学 Q4 CLINICAL NEUROLOGY Neurologist Pub Date : 2024-11-01 DOI:10.1097/NRL.0000000000000582
Xiaolin Hou, Tao Wu, Dingjun Li, Yuan Yao, Lin Zeng
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Abstract

Objective: This study evaluates the effectiveness of multimodal image fusion (MIF) using silent and time-of-flight (TOF) magnetic resonance angiography (MRA) and computed tomography (CT) for preoperative planning in patients with intracranial aneurysms who have contraindications to contrast media.

Materials and methods: A retrospective study included 40 patients with intracranial aneurysms, diagnosed using three-dimensional computed tomography angiography (CTA). These patients underwent both Silent and TOF MRA scans, followed by a CTA scan. The multi-image fusion (MIF) technique, applied using 3DSlicer software, integrated the silent/TOF-MRA with CT images for preoperative assessment. This study compared the image quality, aneurysm detection sensitivity, and anatomic accuracy of the MIF images with those of three-dimensional CTA.

Results: Silent-MRA-CT fusion images demonstrated higher sensitivity (95.5%) and lower false negative rates (4.5%) compared with TOF-MRA-CT. Furthermore, silent-MRA-CT fusion images outperformed TOF-MRA-CT in terms of signal homogeneity, venous signal interference suppression, and aneurysm visibility (all P < 0.05). The interclass correlation coefficient and kappa values for aneurysm morphology and shape indicated superior measurement consistency and shape concordance of silent-MRA-CT with CTA compared with TOF-MRA-CT (all P < 0.01).

Conclusion: This study supports the use of silent/TOF-MRA-CT fusion imaging as a reliable alternative to CTA, noting that silent-MRA-CT closely mirrors CTA. Contrast-free MRA-CT fusion images have the potential to be used for preoperative planning in patients with intracranial aneurysms who have contraindications to contrast.

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使用 3DSlicer 通过静默/磁共振血管造影和计算机断层扫描的多模态图像融合增强颅内动脉瘤的术前规划:与计算机断层扫描血管造影的疗效比较分析》。
研究目的本研究评估了使用无声和飞行时间(TOF)磁共振血管造影(MRA)和计算机断层扫描(CT)的多模态图像融合(MIF)对有造影剂禁忌症的颅内动脉瘤患者进行术前规划的有效性:这项回顾性研究纳入了 40 名使用三维计算机断层扫描血管造影术(CTA)确诊的颅内动脉瘤患者。这些患者都接受了静态和 TOF MRA 扫描,然后进行了 CTA 扫描。使用 3DSlicer 软件的多图像融合(MIF)技术将无声/TOF MRA 与 CT 图像整合在一起进行术前评估。这项研究比较了 MIF 图像与三维 CTA 图像的图像质量、动脉瘤检测灵敏度和解剖准确性:结果:与 TOF-MRA-CT 相比,无声-MRA-CT 融合图像显示出更高的灵敏度(95.5%)和更低的假阴性率(4.5%)。此外,无声-MRA-CT 融合图像在信号均匀性、静脉信号干扰抑制和动脉瘤可见度方面均优于 TOF-MRA-CT(所有 P <0.05)。动脉瘤形态和形状的类间相关系数和卡帕值表明,无声-MRA-CT 与 CTA 的测量一致性和形状一致性优于 TOF-MRA-CT(所有 P < 0.01):本研究支持将无声/TOF-MRA-CT 融合成像作为 CTA 的可靠替代方法,并指出无声-MRA-CT 与 CTA 非常相似。对于有造影剂禁忌症的颅内动脉瘤患者,无对比剂的 MRA-CT 融合成像有望用于术前规划。
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来源期刊
Neurologist
Neurologist 医学-临床神经学
CiteScore
1.90
自引率
0.00%
发文量
151
审稿时长
2 months
期刊介绍: The Neurologist publishes articles on topics of current interest to physicians treating patients with neurological diseases. The core of the journal is review articles focusing on clinically relevant issues. The journal also publishes case reports or case series which review the literature and put observations in perspective, as well as letters to the editor. Special features include the popular "10 Most Commonly Asked Questions" and the "Patient and Family Fact Sheet," a handy tear-out page that can be copied to hand out to patients and their caregivers.
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