SLICE-THICKNESS ARTIFACTS IN GRAY-SCALE ULTRASOUND
SLICE-THICKNESS ARTIFACTS IN GRAY-SCALE ULTRASOUND
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DOI：
10.1002/jcu.1870090704
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发表时间：
1981-01-01
影响因子：
0.9
通讯作者：
MADRAZO, BL
中科院分区：
文献类型：
--
作者：
GOLDSTEIN, A;MADRAZO, BL
作者已经越来越意识到通常出现在无回声区域中的一种类型的图像伪影的存在（例如，囊肿，膀胱，胆囊[人类]），并给出污泥或碎片的外观。这些伪影回波可能是由换能器波束图案的有限宽度产生患者扫描平面的有限厚度的事实引起的。在该厚扫描平面中产生的所有回波被误解为是由于通常假定的薄扫描平面中的结构。通过在水箱中用400粒度碳化硅砂纸模拟软组织界面来测试和验证该假设。提出了一组线索，使这些文物的快速识别。
Authors have become increasingly aware of the presence of a type of image artifact normally appearing in anechoic areas (e.g., cyst, bladder, gallbladder [human]) and giving the appearance of sludge or debris. These artifactual echoes may be caused by the fact that the finite width of the transducer beam pattern produces a finite thickness of the patient scan plane. All echoes produced in this thick scan plane are misinterpreted as being due to structures in the normally assumed thin scan plane. This hypothesis was tested and verified by simulating soft tissue interfaces with 400 grit silicon carbide sandpaper in a water tank. A set of clues are proposed to enable the rapid identification of these artifacts.