Peripheral contrast-enhanced MR angiography at 3.0T, improved spatial resolution and low dose contrast: initial clinical experience.
To investigate a high spatial resolution peripheral contrast-enhanced MR angiography (CE-MRA) protocol, applying a dedicated multi-channel array coil and accelerated parallel acquisition at 3.0T in evaluation of patients with peripheral vascular disease. Twenty patients with peripheral vascular dise...
| Publicado en: | European Radiology Vol. 18; no. 12; pp. 2893 - 2901 |
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| Autores principales: | , , , , , , , , , , , |
| Formato: | research Journal Article |
| Publicado: |
Springer Nature
Dec2008
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=105570947&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 105570947 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 09387994 NPH jtl: European Radiology issn: 09387994 maglogo: N pubinfo: dt: Dec2008 vid: 18 iid: 12 pid: 237 pub: Springer Nature place: New York, New York artinfo: ui: 105570947 35166614 NLM18618122 2010095279 10.1007/s00330-008-1074-y NLM18618122 105570947 ppf: 2893 ppct: 8 formats: fmt: – @attributes: type: T – @attributes: type: P tig: atl: Peripheral contrast-enhanced MR angiography at 3.0T, improved spatial resolution and low dose contrast: initial clinical experience. aug: au: Nael K Krishnam M Nael A Ton A Ruehm SG Finn JP Nael, Kambiz Krishnam, Mayil Nael, Ali Ton, Anthony Ruehm, Stefan G Finn, J Paul affil: Department of Radiological Sciences, David Geffen School of Medicine at University of California Los Angeles, 10945 Le Conte Avenue, Suite # 3371, Los Angeles, CA 90095-7206, USA sug: subj: Contrast Media Administration and Dosage Contrast Media Diagnostic Use Image Enhancement Methods Magnetic Resonance Angiography Methods Peripheral Vascular Diseases Diagnosis Aged Aged, 80 and Over Dose-Response Relationship, Drug Female Male Middle Age Observer Bias Reproducibility of Results Sensitivity and Specificity Human Aged: 65+ years Aged, 80 & over Middle Aged: 45-64 years Female Male ab: To investigate a high spatial resolution peripheral contrast-enhanced MR angiography (CE-MRA) protocol, applying a dedicated multi-channel array coil and accelerated parallel acquisition at 3.0T in evaluation of patients with peripheral vascular disease. Twenty patients with peripheral vascular disease underwent multi-station high spatial resolution peripheral CE-MRA at 3T. The image quality, presence of venous contamination, image noise, and artifact were evaluated by 2 radiologists independently. Assessment of arterial disease for 540 arterial segments was performed, and findings were correlated with conventional catheter angiography in 10 patients. All studies were yielded high diagnostic image quality. Venous contamination and artifact were minimal and never interfered with diagnosis. Sixty seven arterial segments with significant stenoses (>0%) were detected by observers with excellent interobserver agreement (kappa = 0.82; 95% CI: 0.76, 0.88). There was a significant correlation between CE-MRA and conventional angiography (Rs = 0.91 and 0.94 for reader 1 and 2, respectively) for the assessment of the degree of stenosis. Higher available SNR at 3T in combination with multi-coil technology and accelerated parallel acquisition, result in acquisition of nearly isotropic submillimeter 3D voxels throughout the entire peripheral arterial tree with diagnostic image quality and favorable comparative analysis with catheter angiography. pubtype: Academic Journal doctype: research Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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