Department of Radiology, Van Yuzuncu Yil University, Faculty of Medicine, Van, Turkey.
Acta Radiol. 2022 Feb;63(2):143-148. doi: 10.1177/0284185120988131. Epub 2021 Jan 21.
Determining the nature of purely cystic hepatic lesions is essential because different kinds have different follow-ups, treatment options, and complications.
To explore the potential of apparent diffusion coefficient (ADC) values of diffusion-weighted imaging (DWI) for the differentiation of type I hydatid cysts (HC) and simple liver cysts (SLC), which have similar radiological appearances.
This single-center prospective study was conducted during 2016-2019. Round, homogenous, anechoic liver cysts >1 cm were classified according to at least two years of imaging follow-up, radiological features, serology, as well as puncture aspiration injection reaspiration procedure and pathology results. ADC values of 95 cysts (50 type I HCs and 45 SLCs) were calculated on DWI. The differences in ADC values were analyzed by independent t-test.
Of 51 patients, 28 were female, 23 were male (mean age 32.07 ± 22.95 years; age range 5-82 years). Mean diameter of 45 SLCs was 2.59 ± 1.23 cm (range 1.2-7.6 cm) and ADC value was 3.03 ± 0.47 (range 2.64-5.85) while mean diameter of 50 type I HCs was 7.49 ± 2.95 cm (range 2.8-14 cm) and ADC value was 2.99 ± 0.29 (range 2.36-3.83). There was no statistically significant difference in ADC values between type I HCs and SLCs.
Some studies report that ADC values of type I HCs are statistically significantly lower than those of SLCs. Others suggest no significant difference. In our study with a higher number of cases, using ADC parameters similar to those in previous studies, we did not find any statistically significant difference.
确定单纯性肝囊肿的性质至关重要，因为不同类型的肝囊肿具有不同的随访、治疗选择和并发症。
探讨弥散加权成像（DWI）表观扩散系数（ADC）值在鉴别具有相似影像学表现的Ⅰ型包虫囊肿（HC）和单纯性肝囊肿（SLC）中的作用。
本单中心前瞻性研究于 2016 年至 2019 年进行。根据至少两年的影像学随访、影像学特征、血清学以及穿刺抽吸再抽吸程序和病理结果，将圆形、均匀、无回声的肝囊肿>1cm 进行分类。在 DWI 上计算 95 个囊肿（50 个Ⅰ型 HC 和 45 个 SLC）的 ADC 值。采用独立 t 检验分析 ADC 值的差异。
51 例患者中，女性 28 例，男性 23 例（平均年龄 32.07±22.95 岁；年龄范围 5-82 岁）。45 个 SLC 的平均直径为 2.59±1.23cm（范围 1.2-7.6cm），ADC 值为 3.03±0.47（范围 2.64-5.85），而 50 个Ⅰ型 HC 的平均直径为 7.49±2.95cm（范围 2.8-14cm），ADC 值为 2.99±0.29（范围 2.36-3.83）。Ⅰ型 HC 和 SLC 的 ADC 值无统计学差异。
一些研究报道Ⅰ型 HC 的 ADC 值明显低于 SLC，而其他研究则表明两者无显著差异。在我们这项纳入更多病例的研究中，使用与以往研究相似的 ADC 参数，我们未发现两者之间存在任何统计学差异。
