Early detection of saphenous vein arterial bypass graft stenosis by color-assisted duplex sonography: a prospective study.

Polak, Joseph F.; Mc, Donaldson; Dobkin, G R; Mannick, John A.; O'Leary, D H

doi:10.2214/ajr.154.4.2107689

Cited by 33 publications

(7 citation statements)

References 9 publications

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“…Our result showed that duplex US sensitivity 55.9 specificity 0% and accuracy 48.7% compared to CTA these results are nearly agreement with Koelemay et al [22] who reported sensitivity 73% also our results are near to results of Polak et al [23] who reported sensitivity 88% in diagnosis of thermodynamically significant stenosis.…”

Section: Discussionsupporting

confidence: 90%

Colour Doppler Ultrasound Versus CT Angiography or MR Angiography in Diagnosis of Lower Limb Ischaemia

El-Hamid

Darweesh

ElWageih

et al. 2021

JAMMR

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Background: Limb Ischemia is an obstruction of the arteries which reduces blood flow to the extremities (hands, feet and legs) and has progressed to the point of severe pain and even skin ulcers, sores, or gangrene. The pain caused by ischaemia can -wake up an individual at night. This pain is often in the leg and can be relieved temporarily by hanging the leg over the bed or getting up to walk. The complications of diabetic vasculopathy commonly include two categories: microvascular and macro-vascular complications. Macro vascular disease is the most common reason of mortality and morbidity in diabetes and is responsible for high incidence of vascular diseases such as stroke, myocardial infarction, and peripheral vascular diseases (PAD). Epidemiological evidence has confirmed an association between diabetes and increased prevalence of PAD. The duration and severity of diabetes correlate with incidence and extent of PAD. Diabetes changes the nature of PAD. Aim of the Work: The aim of this present study is to evaluate the role of colour Doppler Ultrasound (US) in the diagnosis of lower limb ischaemia. Patients and Methods: In this study, 40 diabetic patients with ischemic limb underwent arterial reconstruction or intervention bypass surgery at Department of Diagnostic Radiology, Tanta University Hospitals. The age of our selected patients ranged from 40-80 years showing that about 2/3 patients in this study were above the age of 60 years and this was found in 24 patients (60%) this is due to high incidence of ischemia and prevalence of atherosclerosis in old age. Results: There are variable risk factors were present. DM was present in 100% of patients followed by hypertension was found in 30 patients (75%) coronary heart disease was found in 9 patients (22.5%) and at least cigarettes smoking was found in 12 patients (30%). Regarding the clinical presentation, intermittent claudication pain was the most frequent symptoms and was present in 26 patients (65%), followed by persistent pain and delayed healing foot ulcer was present in 9 patients (22.5%), followed by rest pain was present in 4 patients (10%) at least amputated leg was present in one patient (2.5%). Colour Doppler US has some limitation eg. In ability to see particular vessels wall due to wall calcification, gases and vessels tortuously. Colour Doppler US sometimes failed to differentiate between tight stenosis and total occlusion. CTA still had an important role especially in the infra-popliteal region and peri-vascular masses. Conclusion: Our study suggested that computed tomography angiography can be used to assess the entirety of lower extremity arterial inflow and runoff, with volumetric data that demonstrate robust arterial enhancement and minimal venous opacification. Nevertheless, computed tomography angiography cannot be considered a viable clinical alternative to colour Doppler US until its diagnostic accuracy and effectiveness are determined.

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Section: Discussionsupporting

confidence: 90%

Colour Doppler Ultrasound Versus CT Angiography or MR Angiography in Diagnosis of Lower Limb Ischaemia

El-Hamid

Darweesh

ElWageih

et al. 2021

JAMMR

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“…PSV ratios are determined for grafts in a manner identical to their use in native arteries (Table 17). 43,44 Exceptions to using distal-to-proximal PSV ratio include cases with a diameter mismatch in the graft or proximal tandem lesions. In these cases a distal PSV can be used instead of the PSV ratio.…”

Section: Discussionmentioning

confidence: 99%

“…In these cases a distal PSV can be used instead of the PSV ratio. 44 Doubling of the velocity PSV ratio indicates significant graft stenosis of greater than 50%, with sensitivity of 95% and specificity 100%. 45 Severe or high-grade lesions warrant intervention.…”

Section: Peripheral Arterial Bypass Graft Ultrasoundmentioning

confidence: 99%

Guidelines for noninvasive vascular laboratory testing: a report from the American Society of Echocardiography and the Society for Vascular Medicine and Biology

et al. 2006

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Accompanying the rapid growth of interest in percutaneous vascular interventions, there has been increasing interest among cardiologists in performing noninvasive vascular testing using ultrasound. In an attempt to provide recommendations on the best practices in vascular laboratory testing, this report has been prepared by a writing group from the American Society of Echocardiography (ASE) and the Society for Vascular Medicine and Biology. The document summarizes principles integral to vascular duplex ultrasoundincluding color Doppler, spectral Doppler waveform analysis, power Doppler, and the use of contrast. Appropriate indications and interpretation of carotid artery, renal artery, abdominal aorta, and peripheral artery ultrasound imaging are described. A dedicated section summarizes noninvasive techniques for physiologic vascular testing of the lower extremity arteriesincluding measurement of segmental pressures and pulse volume plethysmography. The use of exercise testing in the evaluation of peripheral artery disease, ultrasound evaluation of the lower extremities after percutaneous revascularization, and the diagnosis and management of iatrogenic pseudoaneurysm (PSA) is also discussed. A section on the important topic of vascular laboratory accreditation is included. Finally, additional details regarding proper technique for performance of the various vascular tests and procedures are included in the Appendix.

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“…It can be used to measure vessel patency, and the direction and velocity of blood flow (116,143,197). The technique can accurately distinguish veins from arteries and detect different vascular pathologies in different arteries (6,49,121,122). It is able to detect with good accuracy the presence of stenosis or occlusion (193) and to distinguish aneurysm (13,20,173) or pseudoaneurism (37,117).…”

Section: Doppler Ultrasoundmentioning

confidence: 99%

Blood flow in free micro-vascular flaps

Lorenzetti¹,

Salmi²,

Tukiainen³

et al. 1998

Pathophysiology

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Early detection of saphenous vein arterial bypass graft stenosis by color-assisted duplex sonography: a prospective study.

Cited by 33 publications

References 9 publications

Colour Doppler Ultrasound Versus CT Angiography or MR Angiography in Diagnosis of Lower Limb Ischaemia

Colour Doppler Ultrasound Versus CT Angiography or MR Angiography in Diagnosis of Lower Limb Ischaemia

Guidelines for noninvasive vascular laboratory testing: a report from the American Society of Echocardiography and the Society for Vascular Medicine and Biology

Blood flow in free micro-vascular flaps

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