Prospective evaluation of peripheral arterial occlusive disease by 2D MR subtraction angiography

Laissy, Jean Pierre; Debray, Marie‐Pierre; Menegazzo, David; Rangheard, A.-S.; Benamer, Hakim; Charlier, P; Schouman-Claeys, É.

doi:10.1002/jmri.1880080509

Cited by 8 publications

(13 citation statements)

References 19 publications

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“…Gd CE MRA has potential to replace conventional X-ray MRA as diagnostic imaging modality for peripheral arterial examinations [7][8][9][10][11][12][13]. With MRA, 3D information about lesions can be obtained while with standard X-ray angiography, arteries can only be visualized in 2D projections.…”

Section: Resultsmentioning

confidence: 99%

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Vessel diameter measurements in gadolinium contrast-enhanced three-dimensional MRA of peripheral arteries

Westenberg

Geest

Wasser

et al. 2000

Magnetic Resonance Imaging

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In this study, the possibilities for quantification of vessel diameters of peripheral arteries in gadolinium contrast-enhanced magnetic resonance angiography (Gd CE MRA) were evaluated. Absolute vessel diameter measurements were assessed objectively and semi-automatically in maximum intensity projections (MIPs) of contrast-enhanced T1-weighted 3D spoiled gradient-echo datasets, studied with digital subtraction techniques. In vivo, the complete peripheral arterial bed of six patients was studied, from the aorto-iliac bifurcation down to the distal run-off. By measuring the signal intensity (SI) over the lumen of a vessel in the MIP, an SI-plot was obtained. Next, the vessel boundaries were determined using a threshold algorithm; from these boundary points individual diameter values could be obtained along the trajectory of the vessel. In an in vitro study, an optimal threshold value of 30% of the range of SI-values between the background and the maximal SI in the vessel was obtained for accurate diameter measurement in Gd CE MRA (i.e., full-width 30%-maximum). Furthermore, the relationship between the accuracy of these measurements and the scan resolution was investigated. Accuracy was found to be acceptable (i.e., less than 10% over/underestimation) for vessel sizes covering at least 3 pixels. In six patients, diameters were measured in MIPs of the total datasets (i.e., D(T)) as well as in selective MIPs of the clipped datasets (i.e., D(S)) (n = 209). D(T) and D(S) were statistically significantly correlated (p < 0.01) with a Pearson correlation coefficient rP = 0.98. Measurements in the total MIPs yielded statistically significant (p < 0.01) smaller diameter values compared with measurements in selective MIPs, with a mean difference of 0.15 mm. Diameter values from the selective MIPs of the aorto-iliac arteries were also compared with diameter values measured at corresponding anatomic positions in X-ray angiograms of these patients (i.e., D(x)) (n = 70). D(X) and D(S) were statistically significantly correlated (p < 0.01) with a Pearson correlation coefficient rP = 0.92. Diameters measured in the selective MIPs were smaller than those measured in the X-ray angiograms (mean difference 0.49 mm) and this difference was statistically significant (p < 0.01). In conclusion, diameter values can be evaluated accurately in MIPs of vessels with at least 3 pixels in diameter, using the full-width 30%-maximum criterion.

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Section: Resultsmentioning

confidence: 99%

“…Several studies have addressed the advantages and limitations of Gd CE MRA in clinical practice by comparing the diagnostic value of MRA with conventional X-ray angiography [7][8][9][10][11][12][13]. In general, stenoses were graded visually and classified by several observers on both the MR angiograms and the X-ray angiograms.…”

Section: Introductionmentioning

confidence: 99%

Vessel diameter measurements in gadolinium contrast-enhanced three-dimensional MRA of peripheral arteries

Westenberg

Geest

Wasser

et al. 2000

Magnetic Resonance Imaging

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“…9,28,36,46,49,51,53,61,65,67,68,70,73,76 The results are reported by the anatomy assessed and the full set of diagnostic accuracy results is presented in Table 6.…”

Section: Ce Mramentioning

confidence: 99%

“…28,49,51,61,67,68,73 The sensitivity of CE MRA ranged from 92% (for two studies with specificities of 64% and 97%) to 99.5% (specificity 99%). The specificity ranged from 64% (sensitivity 92%) to 99% (for two studies with sensitivities of 97% and 99.5%).…”

Section: Whole Legmentioning

confidence: 99%

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

Collins¹,

Cranny²,

Burch³

et al. 2007

Health Technol Assess

125

106

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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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“…Twenty articles 37,82,92,93,95,[127][128][129][130][131][132][133][134][135][136][137][138][139][140][141] from the peripheral vascular disease part of the review satisfied all the final inclusion criteria. Where results from these articles exactly fitted the dichotomies for our quantitative meta-analyses, they were included in the analyses, and results are given in chapter 6.…”

Section: Peripheral Vascular Diseasementioning

confidence: 99%

The cost-effectiveness of magnetic resonance angiography for carotid artery stenosis and peripheral vascular disease: a systematic review

Berry

Kelly

Westwood

et al. 2002

Health Technol Assess

103

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Prospective evaluation of peripheral arterial occlusive disease by 2D MR subtraction angiography

Cited by 8 publications

References 19 publications

Vessel diameter measurements in gadolinium contrast-enhanced three-dimensional MRA of peripheral arteries

Vessel diameter measurements in gadolinium contrast-enhanced three-dimensional MRA of peripheral arteries

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

The cost-effectiveness of magnetic resonance angiography for carotid artery stenosis and peripheral vascular disease: a systematic review

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