Effect of multilevel sequential stenosis on lower extremity arterial duplex scanning

Bergamini, Thomas M.; Tatum, Cliff; Marshall, Carol; Hall-Disselkamp, Brawnie; Richardson, J. David

doi:10.1016/s0002-9610(99)80221-9

Cited by 32 publications

(19 citation statements)

References 8 publications

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“…One study had an outlying value for sensitivity of 41%. 24 None of the variables considered appeared to offer an explanation for this result, and when this study was removed from the analysis heterogeneity between the studies was still statistically significant. The sensitivities and specificities have been plotted in ROC space ( Figure 14).…”

Section: Below the Kneementioning

confidence: 91%

“…20,24,33,37,50,52,62 The sensitivity of DUS ranged from 80% (specificity 96%) to 98% (specificity 94%). The specificity ranged from 89% (sensitivity 88%) to 99% (sensitivity 92%).…”

Section: Whole Legmentioning

confidence: 99%

“…28,34,48,54,59,71 In the studies reporting a delay of over 1 month between tests 33 patients received the index test first and eight patients received the reference standard first in one study, 54 and it was unclear which test was first in the other. 24 It is therefore possible that the patient's condition deteriorated during this time, making it easier to diagnose, and therefore underestimating the accuracy of the index test. Similarly, the reference standard may be detecting clinically significant disease that simply was not present at the time of the index test.…”

Section: Quality Criteriamentioning

confidence: 99%

See 2 more Smart Citations

A systematic review of duplex ultrasound, magnetic resonance angiography and computed tomography angiography for the diagnosis and assessment of symptomatic, lower limb peripheral arterial disease

2008

Clinical Governance: An International Journal

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Non-UK purchasers will have to pay a small fee for post and packing. For European countries the cost is £2 per monograph and for the rest of the world £3 per monograph.You can order HTA monographs from our Despatch Agents:-fax (with credit card or official purchase order) -post (with credit card or official purchase order or cheque) -phone during office hours (credit card only).Additionally the HTA website allows you either to pay securely by credit card or to print out your order and then post or fax it. NHS libraries can subscribe free of charge. Public libraries can subscribe at a very reduced cost of £100 for each volume (normally comprising 30-40 titles). The commercial subscription rate is £300 per volume. Please see our website for details. Subscriptions can only be purchased for the current or forthcoming volume. Contact details are as follows: Payment methods Paying by chequeIf you pay by cheque, the cheque must be in pounds sterling, made payable to Direct Mail Works Ltd and drawn on a bank with a UK address. Paying by credit cardThe following cards are accepted by phone, fax, post or via the website ordering pages: Delta, Eurocard, Mastercard, Solo, Switch and Visa. We advise against sending credit card details in a plain email. Paying by official purchase orderYou can post or fax these, but they must be from public bodies (i.e. NHS or universities) within the UK. We cannot at present accept purchase orders from commercial companies or from outside the UK. How do I get a copy of HTA on CD?Please use the form on the HTA website (www.hta.ac.uk/htacd.htm). Or contact Direct Mail Works (see contact details above) by email, post, fax or phone. HTA on CD is currently free of charge worldwide.The website also provides information about the HTA Programme and lists the membership of the various committees. HTA NIHR Health Technology Assessment ProgrammeT he Health Technology Assessment (HTA) programme, now part of the National Institute for Health Research (NIHR), was set up in 1993. It produces high-quality research information on the costs, effectiveness and broader impact of health technologies for those who use, manage and provide care in the NHS. 'Health technologies' are broadly defined to include all interventions used to promote health, prevent and treat disease, and improve rehabilitation and long-term care, rather than settings of care. The research findings from the HTA Programme directly influence decision-making bodies such as the National Institute for Health and Clinical Excellence (NICE) and the National Screening Committee (NSC). HTA findings also help to improve the quality of clinical practice in the NHS indirectly in that they form a key component of the 'National Knowledge Service'. The HTA Programme is needs-led in that it fills gaps in the evidence needed by the NHS. There are three routes to the start of projects. First is the commissioned route. Suggestions for research are actively sought from people working in the NHS, the public and consumer groups and professional bodies such as r...

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Section: Below the Kneementioning

confidence: 91%

“…20,24,33,37,50,52,62 The sensitivity of DUS ranged from 80% (specificity 96%) to 98% (specificity 94%). The specificity ranged from 89% (sensitivity 88%) to 99% (sensitivity 92%).…”

Section: Whole Legmentioning

confidence: 99%

Section: Quality Criteriamentioning

confidence: 99%

See 1 more Smart Citation

A systematic review of duplex ultrasound, magnetic resonance angiography and computed tomography angiography for the diagnosis and assessment of symptomatic, lower limb peripheral arterial disease

2008

Clinical Governance: An International Journal

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“…However, low peak systolic velocities at second order stenoses of limbs with multilevel sequential disease appear to significantly decrease the sensitivity of duplex ultrasound 11 . To better visualize small-calcified vessels, it is essential to increase the colour gain for better colour fill of the vessel, yet often this may lead to colour 'bleeding' due to excessive noise as a result 19 .…”

Section: Multilevel Stenosesmentioning

confidence: 99%

“…Doppler ultrasonography was reported to have difficulty in differentiating a 99% stenosis 10 from a complete occlusion and a lower specificity in multilevel stenoses 11 . Angiography, CT scans or MRI scans are used alongside ultrasound in the diagnostic pathway of PAD.…”

Section: Introductionmentioning

confidence: 99%

B-Flow Imaging in Lower Limb Peripheral Arterial Disease and Bypass Graft Ultrasonography

D’Abate

Ramachandran

Young

et al. 2016

Ultrasound in Medicine & Biology

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Effect of hemodynamic conditions on sonographic measurements of peak systolic velocity and arterial diameter in patients with peripheral arterial stenosis

Kröger

Massalha

Buss

et al. 2000

J. Clin. Ultrasound

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Purpose We measured changes in peak systolic velocity ratio and sonogaphic vascular diameter during different hemodynamic conditions in patients with femoral or iliac artery stenosis. Methods In 35 patients with isolated femoral or iliac artery stenosis, prestenotic and intrastenotic peak systolic velocity and inner vascular diameter were calculated using color Doppler sonography and gray‐scale sonography, respectively. The measurements were performed with the patient at rest (baseline), after leg exercise, and again after oral administration of 10 mg of the vasodilator nifedipine. Results The mean prestenotic and intrastenotic peak systolic velocity and the peak systolic velocity ratio (intrastenotic/prestenotic peak systolic velocity) were 70 ± 31 cm/second, 360 ± 130 cm/second, and 6.5 ± 3.6 at baseline; 78 ± 37 cm/second, 404 ± 171 cm/second, and 6.6 ± 4.2 after leg exercise; and 71 ± 30 cm/second, 353 ± 109 cm/second, and 5.9 ± 3.2 after nifedipine administration. The mean prestenotic and intrastenotic diameter and percentage of diameter reduction were 5.9 ± 3.2 mm, 2.3 ± 1.1 mm, and 59 ± 13% at baseline; 4.8 ± 2.4 mm, 2.0 ± 1.3 mm, and 62 ± 13% after leg exercise; and 5.9 ± 2.9 mm, 2.5 ± 1.0 mm, and 54 ± 14% after nifedipine administration. Only the difference in intrastenotic diameter after leg exercise was significantly different from baseline. Conclusions The peak systolic velocity ratio in peripheral arterial stenosis seems to be relatively independent of the hemodynamic conditions and cannot be used for investigations of vasomotion of stenotic arterial segments during different hemodynamic conditions. © 2000 John Wiley & Sons, Inc. J Clin Ultrasound 28:109–114, 2000.

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Effect of multilevel sequential stenosis on lower extremity arterial duplex scanning

Cited by 32 publications

References 8 publications

A systematic review of duplex ultrasound, magnetic resonance angiography and computed tomography angiography for the diagnosis and assessment of symptomatic, lower limb peripheral arterial disease

A systematic review of duplex ultrasound, magnetic resonance angiography and computed tomography angiography for the diagnosis and assessment of symptomatic, lower limb peripheral arterial disease

B-Flow Imaging in Lower Limb Peripheral Arterial Disease and Bypass Graft Ultrasonography

Effect of hemodynamic conditions on sonographic measurements of peak systolic velocity and arterial diameter in patients with peripheral arterial stenosis

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