Study of Risk Factors and Image Findings of Isolated Abdominal Incidentally Detected Aortic Dissection.

IF 1.2 4区医学 Q3 ACOUSTICS Journal of Clinical Ultrasound Pub Date : 2024-11-04 DOI:10.1002/jcu.23889

Hiromasa Tsubouchi, Hidenori Onishi, Koji Maeno, Masaya Nakagaichi, Ikue Tsukushi, Youichi Kitano, Yoshitaka Makino, Hiroyuki Hayashi, Hidekazu Terasawa, Hiroko Kabuto, Toshihiro Misawa, Taku Sanada, Azusa Hisada, Kazuo Notsumata, Kazuhiro Okafuji, Osamu Yamamura

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Abstract

Introduction: Isolated abdominal aortic dissection (IAAD) has been reported to account for 1.1%-4.1% of all aortic dissections. If detected late, it is associated with a risk of aortic rupture. We investigated the risk factors and characteristic imaging findings of incidentally discovered IAAD using abdominal ultrasonography (AUS) during health check-up and hereby report our findings.

Methods: The study sample included 41 patients with abdominal aortic abnormalities identified by AUS performed during a health check-up at our hospital and who were diagnosed with IAAD by contrast-enhanced computed tomography (CT); in addition, 205 patients were included in the nonevent group. Furthermore, risk factors and characteristic imaging findings of IAAD were examined retrospectively.

Results: Compared with the nonevent group, smoking and fatty liver were observed significantly more frequently in the IAAD group. Ultrasound findings indicated an intimal flap in 35 cases (85.4%), whereas CT scan revealed displacement of intimal calcifications in 32 cases (78.0%).

Conclusion: Compared with the nonevent group, there were significantly more cases of fatty liver and smoking habits in the IAAD group. In older patients with risk factors for fatty liver and smoking habits, if IAAD is suspected, it is important to monitor the abdominal aorta using ultrasonography during health check-ups.

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孤立性腹部意外发现主动脉夹层的风险因素和图像结果研究

导言：据报道，孤立性腹主动脉夹层（IAAD）占所有主动脉夹层的 1.1%-4.1%。如果发现较晚，则有主动脉破裂的风险。我们利用腹部超声波检查（AUS）对健康体检中偶然发现的主动脉夹层（IAAD）的风险因素和特征性成像结果进行了调查，并在此报告我们的研究结果：研究样本包括 41 名在我院健康体检中通过 AUS 发现腹主动脉异常，并通过对比增强计算机断层扫描（CT）确诊为 IAAD 的患者；此外，还包括 205 名非事件组患者。此外，还对 IAAD 的危险因素和特征性影像学结果进行了回顾性研究：结果：与非事件组相比，IAAD 组中吸烟和脂肪肝的发病率明显更高。超声检查结果显示有内膜瓣的有35例（85.4%），而CT扫描显示有内膜钙化移位的有32例（78.0%）：结论：与非事件组相比，IAAD组中有脂肪肝和吸烟习惯的病例明显增多。对于有脂肪肝和吸烟习惯等危险因素的老年患者，如果怀疑有 IAAD，在体检时使用超声波检查监测腹主动脉非常重要。

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

Journal of Clinical Ultrasound 医学-核医学

CiteScore

1.90

自引率

0.00%

发文量

248

审稿时长

6 months

期刊介绍： The Journal of Clinical Ultrasound (JCU) is an international journal dedicated to the worldwide dissemination of scientific information on diagnostic and therapeutic applications of medical sonography. The scope of the journal includes--but is not limited to--the following areas: sonography of the gastrointestinal tract, genitourinary tract, vascular system, nervous system, head and neck, chest, breast, musculoskeletal system, and other superficial structures; Doppler applications; obstetric and pediatric applications; and interventional sonography. Studies comparing sonography with other imaging modalities are encouraged, as are studies evaluating the economic impact of sonography. Also within the journal''s scope are innovations and improvements in instrumentation and examination techniques and the use of contrast agents. JCU publishes original research articles, case reports, pictorial essays, technical notes, and letters to the editor. The journal is also dedicated to being an educational resource for its readers, through the publication of review articles and various scientific contributions from members of the editorial board and other world-renowned experts in sonography.