目的 回顾性研究正中弓状韧带（median arcuate ligament，MAL）引起腹腔干（celiac artery，CA）压迫的流行病学、解剖学特征。 方法 测量MAL和CA起始位置及两者距离；CA受压程度，腹腔干主动脉角（angle of emergence，AE）及腹腔干折角（fold angle，FA）。分析MAL引起CA压迫的解剖学特征与基线特征。 结果 MAL和CA椎体起始水平与BMI呈负相关。MAL/CA重叠组与非重叠组在BMI、MAL、CA椎体起始位置等方面的差异有统计学意义。AE、FA与BMI相关。MAL引起CA压迫占9.7%，其中符合正中弓状韧带综合征（median arcuate ligament syndrome，MALS）占4.6%。BMI、AE、FA的差异在腹腔干压迫组与非压迫组间有统计学意义。 结论 本研究为MALS的解剖学、病理学及临床诊治研究提供依据。
Abstract
Objective The epidemiologic and anatomic features of the median arcuate ligament (MAL) causing celiac artery (CA) compression were retrospectively investigated. Methods The starting position and distance of MAL and CA, the degree of compression of the celiac trunk, the angle of emergence (AE) and the fold angle (FA) of CA were measured. The anatomical and baseline characteristics of the compression of the CA caused by the MAL wereanalyzed. Results The levels of MAL and CA vertebral body initiation were negatively correlated with BMI. There were statistical differences in BMI, MAL and CA vertebral body initiation between the MAL/CA overlap group and non-overlap group. Abdominal trunk AE and FA were correlated with BMI. MAL caused abdominal trunk compression in 9.7% of cases, which was consistent with MALS in 4.6% of cases. There were statistical differences in BMI, AE, and FA angles between the abdominal trunk compression group and the non-compression group. Conclusions This study provides basis for the study of anatomy, pathology and clinical diagnosis and treatment of median arcuate ligament syndrome (MALS).
关键词
正中弓状韧带综合征 /
腹腔干压迫 /
腹部CTA /
影像解剖
Key words
Median arcuate ligament syndrome; Celiac artery compression; Abdominal CTA /
Imaging Anatomy
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