Abstract：
BACKGROUND: Infraorbital filler injection is a commonly used minimally invasive cosmetic procedure on the face, which can cause vascular complications.
OBJECTIVE: In this study, we aimed to explore the anatomical structure of the infraorbital vasculature and to establish an accurate protocol for infraorbital filler injection.
METHODS: The vascular structure of the infraorbital region was evaluated in 84 hemifacial specimens using computed tomography. Four segments (P1-P4) and five sections (C1-C5) were considered. We recorded the number of identified arteries in each slice and at each location and the number of deep arteries. Furthermore, we also measured the infraorbital artery (IOA) distribution.
RESULTS: At P1-P4, the lowest number of arteries was detected in segment P4, with a 317/1727 (18.4%) and 65/338 (2.3%) probability of total and deep arterial identification, respectively. The probabilities of encountering an identified artery at the five designated locations (C1-C5) were 277/1727 (16%), 318/1727 (18.4%), 410/1727 (23.7%), 397/1727 (23%), and 325/1727 (18.8%), respectively. The probability of an IOA being identified at C2 was 68/84 (81%).
CONCLUSIONS: We described an effective filler injection technique in the infraorbital region to minimize the associated risks.
METHODS: This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .
OBJECTIVE: In this study, we aimed to explore the anatomical structure of the infraorbital vasculature and to establish an accurate protocol for infraorbital filler injection.
METHODS: The vascular structure of the infraorbital region was evaluated in 84 hemifacial specimens using computed tomography. Four segments (P1-P4) and five sections (C1-C5) were considered. We recorded the number of identified arteries in each slice and at each location and the number of deep arteries. Furthermore, we also measured the infraorbital artery (IOA) distribution.
RESULTS: At P1-P4, the lowest number of arteries was detected in segment P4, with a 317/1727 (18.4%) and 65/338 (2.3%) probability of total and deep arterial identification, respectively. The probabilities of encountering an identified artery at the five designated locations (C1-C5) were 277/1727 (16%), 318/1727 (18.4%), 410/1727 (23.7%), 397/1727 (23%), and 325/1727 (18.8%), respectively. The probability of an IOA being identified at C2 was 68/84 (81%).
CONCLUSIONS: We described an effective filler injection technique in the infraorbital region to minimize the associated risks.
METHODS: This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .
摘要：
背景：眶下填充剂注射是一种常用的面部微创美容手术，会导致血管并发症.
目的：在本研究中，我们旨在探索眶下血管的解剖结构,并建立准确的眶下填充剂注射方案.
方法：使用计算机断层扫描对84例半面部标本进行了眶下区域的血管结构评估。考虑了四个部分（P1-P4）和五个部分（C1-C5）。我们记录了每个切片和每个位置的已识别动脉的数量以及深动脉的数量。此外，我们还测量了眶下动脉(IOA)的分布.
结果：在P1-P4时，在P4段检测到的动脉数量最少，总动脉和深动脉识别的概率分别为317/1727（18.4%）和65/338（2.3%），分别。在五个指定位置（C1-C5）遇到已识别动脉的概率为277/1727（16％），318/1727（18.4%），410/1727（23.7%），397/1727（23%），和325/1727（18.8%），分别。在C2处鉴定IOA的概率为68/84(81%)。
结论：我们描述了一种有效的眶下区域填充剂注射技术，以最大程度地减少相关风险。
方法：本期刊要求作者为每篇文章分配一定程度的证据。对于这些循证医学评级的完整描述，请参阅目录或在线作者说明www。springer.com/00266.
目的：在本研究中，我们旨在探索眶下血管的解剖结构,并建立准确的眶下填充剂注射方案.
方法：使用计算机断层扫描对84例半面部标本进行了眶下区域的血管结构评估。考虑了四个部分（P1-P4）和五个部分（C1-C5）。我们记录了每个切片和每个位置的已识别动脉的数量以及深动脉的数量。此外，我们还测量了眶下动脉(IOA)的分布.
结果：在P1-P4时，在P4段检测到的动脉数量最少，总动脉和深动脉识别的概率分别为317/1727（18.4%）和65/338（2.3%），分别。在五个指定位置（C1-C5）遇到已识别动脉的概率为277/1727（16％），318/1727（18.4%），410/1727（23.7%），397/1727（23%），和325/1727（18.8%），分别。在C2处鉴定IOA的概率为68/84(81%)。
结论：我们描述了一种有效的眶下区域填充剂注射技术，以最大程度地减少相关风险。
方法：本期刊要求作者为每篇文章分配一定程度的证据。对于这些循证医学评级的完整描述，请参阅目录或在线作者说明www。springer.com/00266.
