Department of Radiology, Yantai Municipal Laiyang Central Hospital, Yantai, Shandong, 265200, China.
Department of Radiology, Yantai Affiliated Hospital of Binzhou Medical University, No. 717, Jinbu Street, Yantai, Shandong, 264100, China.
J Gastrointest Surg. 2017 Nov;21(11):1954-1956. doi: 10.1007/s11605-017-3456-4. Epub 2017 Jun 14.
The aim of this study is to explore MR features and imaging mechanism of intestinal phytobezoar and to deepen the understanding of intestinal phytobezoar.
Eighteen cases of intestinal phytobezoar (including 15 cases in small intestine and 3 cases in colon) underwent MR examinations. Summing-up and analyzing MR features combinded with intraoperative findings.
All 18 cases of intestinal phytobezoar showed irregular shape low signal on T2-weighted image, which was named coke sign in this study. And on T1-weighted image showed as follows: (i) 12 cases of intestinal phytobezoar (11 in small intestine and 1 in ascending colon) showed internal low signal and peripheral ring-like high signal, which was named empty shell sign in this study, (ii) 4 cases of intestinal phytobezoar (3 in jejunum and 1 in ileum) showed mixed slightly higher signal, and (iii) 2 cases of intestinal phytobezoar (both in colon) showed slightly low signal.
Intestinal phytobezoar presented coke sign on T2-weighted image and complicated signal, more often empty shell sign on T1-weighted image. Correct diagnosis of an intestinal phytobezoar has an instructive value in selection of treatment strategy.
本研究旨在探讨植物性胃石的磁共振（MR）特征和成像机制，加深对肠植物性胃石的认识。
对 18 例肠植物性胃石（包括小肠 15 例，结肠 3 例）进行 MR 检查。结合手术结果总结和分析 MR 特征。
18 例肠植物性胃石均在 T2 加权图像上呈不规则形低信号，本研究将其命名为焦炭征。在 T1 加权图像上表现为：（i）12 例肠植物性胃石（11 例在小肠，1 例在升结肠）呈内部低信号和外周环状高信号，本研究将其命名为空壳征，（ii）4 例肠植物性胃石（3 例在空肠，1 例在回肠）呈混合稍高信号，（iii）2 例肠植物性胃石（均在结肠）呈稍低信号。
肠植物性胃石在 T2 加权图像上呈焦炭征，在 T1 加权图像上呈复杂信号，常呈空壳征。正确诊断肠植物性胃石对选择治疗策略具有指导价值。
