Iliac artery stenosis measurements: comparison of two-dimensional time-of-flight and three-dimensional dynamic gadolinium-enhanced MR angiography.

Poon, Edward K.; Yucel, E K; Pagan-Marin, H; Kayne, H

doi:10.2214/ajr.169.4.9308478

Cited by 70 publications

(22 citation statements)

References 9 publications

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“…In accordance with literature reports (23)(24)(25)(26)(27), grades 3 and 4 (50%-100% luminal narrowing) were considered to indicate hemodynamically significant arterial stenosis in our study group. When two or more stenotic lesions were detected in the same arterial segment, the most severe stenosis was used for grading and analysis.…”

Section: Qualitative Mr Image Analysissupporting

confidence: 81%

Assessment of Aortoiliac and Renal Arteries: MR Angiography with Parallel Acquisition versus Conventional MR Angiography and Digital Subtraction Angiography

Sutter¹,

Nanz²,

Lutz³

et al. 2007

Radiology

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Section: Qualitative Mr Image Analysissupporting

confidence: 81%

Assessment of Aortoiliac and Renal Arteries: MR Angiography with Parallel Acquisition versus Conventional MR Angiography and Digital Subtraction Angiography

Sutter¹,

Nanz²,

Lutz³

et al. 2007

Radiology

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show abstract

“…Additional studies have confirmed the speed and accuracy of peripheral CEMRA. 102,150 Poon et al 151 compared the diagnostic accuracy of CEMRA for the measurement of percent stenosis in the iliac arteries rather than using an arbitrary cutoff for significant disease. A recent refinement of CEMRA for peripheral vascular disease has used a stepping table with digital subtraction, comparable to the technique used to perform a peripheral runoff examination with x-ray angiography, although at lower resolution.…”

Section: Yucel Et Almentioning

confidence: 99%

Magnetic Resonance Angiography

Yucel¹,

Anderson²,

Edelman³

et al. 1999

Circulation

124

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“…gram is significantly faster and is lessprone to flow and saturation artifacts than time-of flight imaging, the other most commonly used MR angiographic technique [9].…”

Section: Gadolinium-enhanced 3d Gre Mr Angiomentioning

confidence: 99%

Gadolinium-enhanced three-dimensional MR angiography of the aorta and peripheral arteries: evaluation of a multistation examination using two gadopentetate dimeglumine infusions.

Earls

Patel²,

Smith³

et al. 1998

American Journal of Roentgenology

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JamesP.Earls1'2 NileshH.Patel1 PatriciaA. Smith2 SalvatoreDeSena2 Mark H.Meissner3OBJECTIVE. Three-dimensionalgadolinium-enhanced MR angiographyis a rapid and accurate method that can at times image only a limited amount of anatomy during an exami nation. We evaluated a technique that doubled the anatomy imaged by obtaining two separate gadolinium-enhanced MR angiograms during a single examination.MATERIALS AND METHODS. Twenty-threepatientsreferredfor MR evaluationof aortic or peripheral vascular disease underwent two successive gadolinium-enhanced three dimensional MR angiographic examinations during a single MR examination. An injection of 15 ml of gadopentetatedimeglumine was used for the first MR angiogram, and 25 ml was used for the second MR angiogram. The angiograms were quantitatively and qualitatively evaluatedto determine the effect of residual gadolinium from the initial MR angiogram on the secondangiogram.RESULTS.The two studiesdepictedeithertheentireaortato the femoralarteries(n = 10) or the distal aorta to the popliteal arteries (n = 13). The total mean gadolinium dose was 0.245 mmol/kg per patient.An averageof 15 mm elapsedbetweeninjections.The value of arterial signal-to-noise ratio (mean, 48.8 versus 56.4) and artery-to-vein contrast-to-noise ratio (mean, 45.5 versus 49.0) increased between the first and second angiograms, respectively. Re sidual gadolinium elevated the values for venous signal-to-noise ratio (mean, 2.3 versus 7.2) and background-to-muscle signal-to-noise ratio (mean, 5.5 versus 10.1) on the second MR angiogram. Qualitative evaluation by three observers showed no significant differences in di agnostic usefulness or overall image quality between the first and second MR angiograms. CONCLUSION. The useoftwo low-dosegadolinium-enhanced three-dimensional MR angiograms during a single examination is a feasible approach to increase anatomic coverage when performing gadolinium-enhancedthree-dimensionalMR angiographyof the aortaand peripheral vessels. Although background enhancement is slightly elevated on the second angiogram, such enhancement does not significantly change diagnostic usefulness or overall image quality.C adolinium-enhanced three-dimen

show abstract

Iliac artery stenosis measurements: comparison of two-dimensional time-of-flight and three-dimensional dynamic gadolinium-enhanced MR angiography.

Cited by 70 publications

References 9 publications

Assessment of Aortoiliac and Renal Arteries: MR Angiography with Parallel Acquisition versus Conventional MR Angiography and Digital Subtraction Angiography

Assessment of Aortoiliac and Renal Arteries: MR Angiography with Parallel Acquisition versus Conventional MR Angiography and Digital Subtraction Angiography

Magnetic Resonance Angiography

Gadolinium-enhanced three-dimensional MR angiography of the aorta and peripheral arteries: evaluation of a multistation examination using two gadopentetate dimeglumine infusions.

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