CAJ | 학술논문

目的通过 MR 血管成像(MRA)测量主动脉-肠系膜上动脉夹角(AMA),并评估其与体重指数(BMI)的相关性.资料与方法行腹部 MRI检查的605例非肠系膜上动脉综合征(SMAS)患者,按照性别及 BMI 各分成4个级别(Ⅰ级:BMI <18.5kg/m2;Ⅱ级:BMI 18.5~24.9kg/m2;Ⅲ级:BMI 25~29.9kg/m2;Ⅳ级:BMI ≥30kg/m2).于三维对比增强 MRA(3D-CE-MRA)序列最大密度投影(MIP)矢状面重组图像上测量 AMA,分析不同性别患者AMA 与 BMI、BMI 分级之间的相关性.结果男女组 AMA 与 BMI 均呈显著正相关(r=0.51、0.54, P<0.01),AMA与BMI分级均呈中等相关(r=0.40、0.43, P <0.01).随 BMI 增加,AMA 增大.结论通过3D-CE-MRA 测量的 AMA和 BMI 显著相关,可以为 MRA 诊断 SMAS 提供参考值标准.
목적통과 MR 혈관성상(MRA)측량주동맥-장계막상동맥협각(AMA),병평고기여체중지수(BMI)적상관성.자료여방법행복부 MRI검사적605례비장계막상동맥종합정(SMAS)환자,안조성별급 BMI 각분성4개급별(Ⅰ급:BMI <18.5kg/m2;Ⅱ급:BMI 18.5~24.9kg/m2;Ⅲ급:BMI 25~29.9kg/m2;Ⅳ급:BMI ≥30kg/m2).우삼유대비증강 MRA(3D-CE-MRA)서렬최대밀도투영(MIP)시상면중조도상상측량 AMA,분석불동성별환자AMA 여 BMI、BMI 분급지간적상관성.결과남녀조 AMA 여 BMI 균정현저정상관(r=0.51、0.54, P<0.01),AMA여BMI분급균정중등상관(r=0.40、0.43, P <0.01).수 BMI 증가,AMA 증대.결론통과3D-CE-MRA 측량적 AMA화 BMI 현저상관,가이위 MRA 진단 SMAS 제공삼고치표준.
Purpose To investigate the relationship between body mass index (BMI) and aortomesenteric angle (AMA) measured by MR angiography (MRA). Materials and Methods 605 patients referred for abdominal MRI examinations without clinical evidence of suspect SMAS were included. The patients were divided into four groups according to BMI (group 1: BMI < 18.5 kg/m2; group 2: BMI 18.5-24.9 kg/m2; group 3: BMI 25-29.9 kg/m2; group 4: BMI≥30 kg/m2) in both genders. 3D-CE-MRA was performed using a 3D FISP sequence. On the reformatted sagittal maximum intensity projection images, the AMA was measured. The relationships between AMA and BMI as well as BMI category of different genders were analyzed. Results For both females and males, there was significant positive correlation between the AMA and BMI (r=0.51, r=0.54, respectively, P<0.01). The correlations between the BMI category and AMA were moderate and significantly positiveas well (r =0.40, r =0.43, respectively, P < 0.01). The results showed a positive correlation between BMI and AMA. Conclusion The AMA measured by 3D-CE-MRA significantly correlates with BMI in normal population. The mean values may be referenced to help diagnose superior mesenteric artery syndrome.