该图显示了根据美国心脏协会(AHA)对动脉粥样硬化分级所使用的组织学分级表。该图的目的是给出标准,并解释为什么各部分被分配特定的等级。切片用苏木精和伊红染色。星形表示血管腔。水平的面板代表研究中观察到的每个等级,I-VII(不包括VI)。垂直的柱子描述了在不同放大倍率下相同的剖面。I级:仅存在孤立的巨噬细胞泡沫细胞(箭头突出显示)。这是颈外动脉的一部分。II级:巨噬细胞泡沫细胞呈层状,椭圆形包围。这是胫骨后动脉的一部分。III级:可见细胞外脂质小池,如矩形所示。 This is a section of the vertebral artery. Grade IV: exhibits the presence of a large confluent extracellular lipid pool, indicated by the rectangle. This is a section of the femoral artery. Grade V: has apparently thickened fibromuscular tissue layer, appreciated by the line with brackets. An extracellular lipid pool is also present here, indicated by the rectangle. This is a section of the internal carotid artery. Grade VII: calcification predominates the tunica of the vessel wall, indicated by the green asterisk. This is a section of the radial artery. Credit: Christopher Hoehmann, NYIT Medical Student
“外周动脉可能是冠状动脉疾病的可靠指标”,作者是Brian L. Beatty博士和Bennett Futterman医学博士,他们都是NYITCOM的解剖学副教授,以及Christopher Hoehmann,三年级学生医科学生在那里。在他们的研究中,作者研究了48具尸体的动脉,以确定动脉粥样硬化的风险因素,从每具捐赠的尸体中取样了13个动脉段,包括颈动脉、中央动脉和外周动脉的段。