Growth patterns of true renal artery aneurysms in the current published literature

IF 2.1 3区医学 Q2 RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING

Clinical radiology Pub Date : 2025-05-14 DOI:10.1016/j.crad.2025.106957

H. Briody , E. Tong , R.J. Lee , G.R. Daly , C. Brosnan , K.P. Sheahan , D.P. Mulholland , M.J. Lee

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引用次数: 0

Abstract

AIM

To describe the methods of surveying true renal artery aneurysms (RAAs) and identify the pattern of growth of RAA in the current literature.

MATERIALS AND METHODS

A comprehensive electronic database search was performed. The limits applied included full text and English language. The reference lists of included publications were manually searched for further relevant studies. Studies that surveyed RAA on imaging and calculated mean aneurysm growth rates per year were included.

Results

Literature review yielded six studies comprising 876 patients and approximately 988 aneurysms. Computed tomography (CT) was the most common imaging modality utilised for evaluation of RAA. Mean initial RAA diameter ranged from 1.21 to 1.6 cm. The combined cohort was followed radiologically for up to a maximum of 142 months and reports a zero percent rupture rate. Mean growth rates were consistently below 0.1 cm/y across the included studies (range: 0.017–0.086 cm/y).

Conclusion

The present study highlights a benign course of RAA. The current evidence yields a rupture rate of zero in a combined cohort of approximately 988 aneurysms followed for up to 11 years. Future guidelines should recognise this indolent course and consider rationalisation of RAA surveillance, particularly where initial aneurysm size is well below the threshold for treatment.

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在目前发表的文献中，真肾动脉瘤的生长模式

目的介绍目前文献中真实肾动脉动脉瘤（RAAs）的检测方法及RAA的生长模式。材料与方法进行了全面的电子数据库检索。适用的限制包括全文和英文。人工检索纳入出版物的参考文献列表，以进一步进行相关研究。研究调查RAA的影像学和计算平均动脉瘤生长率每年纳入。结果文献回顾了6项研究，包括876例患者和大约988个动脉瘤。计算机断层扫描（CT）是评估RAA最常用的成像方式。平均初始RAA直径为1.21 ~ 1.6 cm。合并队列的放射学随访最长达142个月，报告破裂率为零。在纳入的研究中，平均生长率始终低于0.1 cm/y（范围：0.017-0.086 cm/y）。结论本研究强调RAA的良性过程。目前的证据表明，在对大约988个动脉瘤进行长达11年的随访中，动脉瘤破裂率为零。未来的指南应该认识到这种惰性过程，并考虑RAA监测的合理化，特别是在初始动脉瘤大小远低于治疗阈值的情况下。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Clinical radiology 医学-核医学

CiteScore

4.70

自引率

3.80%

发文量

528

审稿时长

76 days

期刊介绍： Clinical Radiology is published by Elsevier on behalf of The Royal College of Radiologists. Clinical Radiology is an International Journal bringing you original research, editorials and review articles on all aspects of diagnostic imaging, including: • Computed tomography • Magnetic resonance imaging • Ultrasonography • Digital radiology • Interventional radiology • Radiography • Nuclear medicine Papers on radiological protection, quality assurance, audit in radiology and matters relating to radiological training and education are also included. In addition, each issue contains correspondence, book reviews and notices of forthcoming events.