Ozturk Muhsin Ozgun, Resorlu Mustafa, Aydin Sonay, Memis Kemal Bugra
Department of Radiology, Erzincan Binali Yıldırım University, Faculty of Medicine, Erzincan 24000, Türkiye.
Department of Radiology, Canakkale Onsekiz Mart University, Faculty of Medicine, Canakkale 17000, Türkiye.
World J Radiol. 2024 Nov 28;16(11):629-637. doi: 10.4329/wjr.v16.i11.629.
The appendix vermiformis is a part of the gastrointestinal tract, situated in the lower right quadrant of the abdomen. Acute appendicitis, acute inflammation of the appendix vermiformis, is the most common cause of acute abdomen requiring surgical intervention. Although computed tomography (CT) offers high diagnostic efficacy in assessing the appendix across various anatomical positions, it also involves radiation exposure. Reducing exposure factors and narrowing the field of view (FOV) are ways to decrease the radiation dose to the patient. To narrow the FOV, appendix locations within the population must be defined using metric markers.
To determine the location of the appendix vermiformis on CT using the vertebrae and the right iliac bone as anatomical landmarks.
This retrospective study examined 470 patients presenting with abdominal pain who underwent abdominal CT scans between January 01, 2015 and January 01, 2018. Forty-three patients were excluded due to various reasons. The most superior and inferior points and the origin of the appendix were measured separately in relation to the vertebrae and right iliac bone for localization. The population was divided into normal and acute appendicitis groups, and the relationship between appendix location and anthropometric parameters relationship was examined. values below 0.05 were considered statistically significant.
The final analysis included 427 adult patients (206 females and 221 males) with a mean age of 42.1 ± 19.5 years. An ascending appendix course was the most common (90.4%). The appendix ranged from the L2 vertebral body level to the coccygeal vertebral level relative to the vertebrae. The appendix ranged between (-) 140.5 mm and (+) 87.4 mm relative to the right iliac bone. A negative correlation was found between patient age, height, body mass index, and the highest and lowest points of the appendix in regard to the vertebrae.
The study's findings unveiled the locations of the appendix in the population in relation to the bony anatomical landmarks. These data can be used as the basis for future research aimed at reducing patient exposure to ionizing radiation.
阑尾是胃肠道的一部分，位于腹部右下腹。急性阑尾炎，即阑尾的急性炎症，是需要手术干预的急腹症的最常见原因。尽管计算机断层扫描（CT）在评估不同解剖位置的阑尾时具有较高的诊断效能，但它也涉及辐射暴露。降低暴露因素和缩小视野（FOV）是减少患者辐射剂量的方法。为了缩小视野，必须使用度量标记来定义人群中阑尾的位置。
以椎骨和右髂骨作为解剖标志，确定CT上阑尾的位置。
这项回顾性研究检查了2015年1月1日至2018年1月1日期间接受腹部CT扫描的470例腹痛患者。由于各种原因，排除了43例患者。分别测量阑尾相对于椎骨和右髂骨的最上点、最下点以及阑尾的起点以进行定位。将人群分为正常组和急性阑尾炎组，并检查阑尾位置与人体测量参数之间的关系。P值低于0.05被认为具有统计学意义。
最终分析纳入了427例成年患者（206例女性和221例男性），平均年龄为42.1±19.5岁。阑尾呈上升走行最为常见（90.4%）。相对于椎骨，阑尾范围从第2腰椎椎体水平至尾椎椎体水平。相对于右髂骨，阑尾范围在（-）140.5毫米至（+）87.4毫米之间。发现患者年龄、身高、体重指数与阑尾相对于椎骨的最高和最低点之间呈负相关。
该研究结果揭示了人群中阑尾相对于骨性解剖标志的位置。这些数据可作为未来旨在减少患者电离辐射暴露研究的基础。
