THE SONOGRAPHIC APPEARANCE OF THE NORMAL GASTRIC WALL - AN INVITRO STUDY
THE SONOGRAPHIC APPEARANCE OF THE NORMAL GASTRIC WALL - AN INVITRO STUDY
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DOI：
10.1016/0301-5629(86)90067-0
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发表时间：
1986-12-01
影响因子：
2.9
通讯作者：
LABO, G
中科院分区：
文献类型：
--
作者：
BOLONDI, L;CASANOVA, P;LABO, G
为了评估胃壁内超声可识别层的真实的数量和解剖对应关系，我们使用高频（7.5 MHz）旋转换能器检查5个手术胃标本，悬浮在水浴中。在胃壁内可清楚地分辨出5层，厚度为3-6 mm。细针和柳叶刀插入粘膜下层时位于第3高回声层水平，插入固有肌层时位于第4高回声层水平。悬浮在水中的其他均匀组织（脾脏、子宫肌层）两侧总是显示薄的回声带。在这些发现的基础上，并考虑到超声与组织相互作用的物理规律，我们得出结论，第1和第5高回声层部分产生的超声波反射在界面液体/壁。第2低回声层对应于粘膜的最深部分;第3高回声层对应于粘膜下层和粘膜下层/固有肌层界面，第4低回声层对应于固有肌层。
In order to evaluate the real number and anatomical correspondence of the ultrasonographically recognizable layers within the gastric wall, we used a high frequency (7.5 MHz) rotating transducer to examine five surgical specimens of the stomach suspended in a water bath. Five layers were always clearly distinguishable within the gastric wall, whose thickness was 3-6 mm. Fine needles and lancets were localized at the level of the 3rd hyperechoic layer when inserted in the submucosa and in the 4th hyperechoic layer when inserted in the muscolaris propria. Thin echogenic bands were always displayed on both sides of other homogeneous tissues (spleen, myometrium) suspended in water. On the basis of these findings and also taking in account the physical laws of ultrasound interactions with tissues, we conclude that the 1st and the 5th hyperechoic layers are partially generated by ultrasound reflection at the interface liquid/wall. The 2nd hypoechoic layer corresponds to the deepest part of the mucosa; the 3rd hyperechoic to the submucosa and the submucosa/muscularis propria interface and the 4th hypoechoic layer to the muscularis propria.