Doppler waveforms of the normal and collateralized inferior mesenteric artery.

Abstract

OBJECTIVE. Our purposewas to analyzeDoppler waveformchangesand the caliberof the inferior mesenteric artery as a collateral vessel in occlusive disease of the abdominal aorta or its main branches.SUBJECTS AND METHODS. Thirty-threepatients wereexaminedin threegroupsaccord ing to the location of their occlusive disease (group 1 [n = 5], occlusion of the celiac and superior mesenteric arteries;group 2 [n = 9], occlusion ofthe iliac artery;and group 3 [n = 19], occlusion of the abdominal aorta distal to the renal arteries). The main truncus of the inferior mesenteric artery was evaluated along its longitudinal axis using color duplex Doppler sonography. Peak systolic ye

A study concerning morphometry of abdominal aorta branches and abdominal viscera: relations and correlation

“…Ultrasound (US) is cheap, easily applicable and non-invasive, yet operator-dependent [88] and prone to magnification effect and diameter overestimation [20,65,77]. Not all arteries are visualised due to their anatomic position, including CA, SMA and IMA [25,59]. Computerised topographic angiography and magnetic resonance angiography are precise, objective and repeatable [66,99] but method they apply (3-dimensional reconstruction of vessels filled with contrast material) is probably superior for lumen rather than diameter estimation.…”

“…Stent grafts design and placement for endovascular repair of AA and branches aneurysms [38,40], chemoembolisation for haemorrhage or chemotherapy [5], visceral aneurysm diagnosis and treatment [8] and transplantation [36,87] are based on precise calculation of AA branches' diameters. Diagnosis, staging and treatment of many relative common diseases including chronic mesenteric ischaemia or other occlusive diseases of AA branches [25] and chronic renal insufficiency [3] utilise such measurements. Certain morphometric characteristics including volume and length are useful for diagnosis and staging of spleen and kidney diseases like splenomegaly and various nephropathies [7,9].…”

Duplex ultrasound interpretation criteria for inferior mesenteric arteries

“…Although PSV of the normal IMA has been shown to range from 93 to 189 cm/second, specific velocities for detecting significant IMA stenosis have never been established. 5 Few authorities proposed certain PSV values, but without supporting data.…”

“…Erden et al 5 showed that PSVs in the IMA can reach 190 cm/second when the IMA serves as part of a collateral pathway in the presence of severely stenotic or occluded SMA or CA. Recently, Pellerito et al 9 reported that a PSV >200 cm/second is useful for detecting significant IMA stenosis.…”

“…[1][2][3][4] Although the peak systolic velocity (PSV) of a normal inferior mesenteric artery (IMA) has been reported to range from 93 to 189 cm/second, there is no specific DUS criteria for the diagnosis of significant IMA stenosis. 5 The present study will define the optimal duplex velocity cut-off values with the best overall accuracy (OA), positive predictive value (PPV) and negative predictive value (NPV) in detecting ≥50% and ≥70% stenosis of the IMAs.…”