To analyze and describe the normal morphological and hemodynamic characteristics of the superior mesenteric artery (SMA) in abdominal ultrasound exploration using B-mode and color,
power and spectral Doppler mode. To review possible anomalies of the SMA either anatomical variants,
stenotic / occlusive,
or by its own disposition to compromise adjacent structures. To interpret the usual and pathological flow parameters and speeds of the SMA. To describe an evaluation analysis to correctly...
Although it fulfills an essential function such as the irrigation of the small intestine and part of the large intestine,
the SMA is a forgotten vessel in the abdominal ultrasonographic study,
both on duty,
routine or in the abdominal Doppler evaluation.
this vessel may be affected by various pathologies,
both stenotic/occlusive (atherosclerosis or fibromuscular dysplasia and non-atherosclerotic cause) or by its own disposition,
cause extrinsic compressive pathology such as...
Findings and procedure details
The evaluation of the SMA should be performed with the patient fasting and in the supine position using a low frequency convex transducer of 2.5-3.5MHz.
The exploration is started in the sub xiphoid transverse section identifying the abdominal aorta artery,
using in many cases the left hepatic lobe and the pancreas as an acoustic window for a correct visualization.
Once the aorta is identified,
the anterior wall of the aorta should be explored in search of the celiac trunk easily...
Diagnostic imaging specialists play a fundamental role in the diagnosis of rare but not less important pathologies related to the superior mesenteric artery,
the aorto mesenteric compass and the alterations that arise from it,
as in the case of Nutcracker syndrome.
"Nutcracker" and the Wilkie Syndrome.
B-mode abdominal ultrasound,
power and spectral Doppler should be the initial method of study since it is a non-invasive,
accessible and inexpensive method.
Resident Doctors of the Radiology department,
Argentina. Rolleri Fajardo,
Jeremías Benjamín email: email@example.com Lima Condo,
Claudia Mónica email: firstname.lastname@example.org Mattocio Vevenis,
Juan Pablo email: email@example.com
Duplex ultrasound criteria for diagnosis of splanchnic artery stenosis or occlusion.
J Vasc Surg,
1991; 14:511-520 2.Welsch T,
Recordando el síndrome de la arteria mesentérica superior.Dig Surg.2007;24:149-156. 3.Kurklinsky AK,
Nutcracker phenomenon and nutcracker syndrome. Mayo Clin Proc .
2010;85(6):552-9. 4.Okamura S,
et al.Tratamiento de la oclusión aguda de la arteria mesentérica superior mediante terapia trombolítica. Case Rep...