Karatay Emrah, Turkoglu Ozlem, Eren Abdulkadir, Javadov Mirkhalig
Department of Radiology, Ministry of Health Tuzla State Hospital, Istanbul, Turkey.
Department of Radiology, University of Health Sciences, Taksim Training and Research Hospital, Istanbul, Turkey.
J Med Ultrasound. 2024 Mar 7;33(1):23-28. doi: 10.4103/jmu.jmu_134_23. eCollection 2025 Jan-Mar.
Hydatid cysts (HCs), which are among the cystic lesions of the liver, are frequently encountered in endemic areas. Routine imaging modalities are sometimes insufficient to differentiate HC types, and ultrasound (US) elastography has just begun to be used for this purpose. In this study, the effectiveness of the strain elastography (SE) method in preoperative HC cases was investigated, and the relationship between HC types and elastography values was evaluated.
HC cases that underwent SE simultaneously with preoperative US between January 2019 and February 2021 were evaluated retrospectively, and 75 cases were included in the study. In addition to elastography data, cyst typing according to the World Health Organization (WHO) classification was also available.
Thirty cases were male and 45 cases were female, the median age was 48 years, and the interquartile range was 41 years. According to the WHO classification, 15 cases were Type I, 27 cases were Type II, and 33 cases were Type III HC. Median strain ratio (SR) values were 5.69 (4.07-14.47) for Type I, median 1.49 (1.26-1.74) for Type II, and median 0.21 (0.13-0.30) for Type III, and there was a highly significant relationship between HC types and SR values ( < 0.001). There was also a very strong (-) directional correlation between HC type and strain rate ( < 0.001, Spemann rho (ρ): -0.928).
US elastography is a new modality in the diagnosis of HC types, and there are few studies available. In this study, unlike the literature, it is the first time that HC typing and discrimination have been used using the SE technique, which is remarkable.
肝包虫囊肿（HCs）是肝脏囊性病变之一，在流行地区较为常见。常规成像方式有时不足以区分HC类型，超声（US）弹性成像刚刚开始用于此目的。在本研究中，研究了应变弹性成像（SE）方法在术前HC病例中的有效性，并评估了HC类型与弹性成像值之间的关系。
回顾性评估2019年1月至2021年2月期间在术前US检查时同时接受SE检查的HC病例，75例纳入研究。除弹性成像数据外，还可根据世界卫生组织（WHO）分类进行囊肿分型。
男性30例，女性45例，中位年龄48岁，四分位间距为41岁。根据WHO分类，I型15例，II型27例，III型HC 33例。I型的中位应变率（SR）值为5.69（4.07 - 14.47），II型中位值为1.49（1.26 - 1.74），III型中位值为0.21（0.13 - 0.30），HC类型与SR值之间存在高度显著关系（<0.001）。HC类型与应变率之间也存在非常强的（-）方向相关性（<0.001，斯皮尔曼rho（ρ）：-0.928）。
US弹性成像是诊断HC类型的一种新方法，相关研究较少。在本研究中，与文献不同的是，首次使用SE技术进行HC分型和鉴别，这一点很显著。
