title: Pediatric extracranial applications of MR angiography.
abstract: Extracranial magnetic resonance angiography (MRA) was performed in 20 children to evaluate for various arterial and venous conditions. Time-of-flight and phase-contrast angiograms were constructed using a maximal-intensity-projection algorithm. The accuracy of MRA was comparable to Doppler ultrasound (n = 12) and conventional angiography (n = 3). MRA could provide an excellent mapping of patent (including collaterals) versus thrombosed vessels at sites not evaluated or inaccessible by sonography. Limitations included assessment of small and/or tortuous vessels, severely stenotic lesions, and very slow flow.
authors.affiliation: Department of Radiology, University of Iowa Hospitals and Clinics, Iowa City 52242, USA.
authors.forename: S C
authors.initials: SC
authors.lastname: Kao
authors.forename: J C
authors.initials: JC
authors.lastname: Ehrhardt
authors.forename: Y
authors.initials: Y
authors.lastname: Sato
authors.forename: M P
authors.initials: MP
authors.lastname: D'Alessandro
authors.forename: W L
authors.initials: WL
authors.lastname: Smith
mesh_terms: D000293:Adolescent; D000328:Adult; D001158:Arteries / Q000473:pathology; D002648:Child; D002675:Child, Preschool; D003287:Contrast Media / Q000008:administration & dosage; D005260:Female; D019786:Gadolinium DTPA / Q000008:administration & dosage; D006801:Humans; D007223:Infant; D007275:Injections, Intravenous; D018810:Magnetic Resonance Angiography / Q000379:methods*; D008297:Male; D016491:Peripheral Vascular Diseases / Q000175:diagnosis*; D015203:Reproducibility of Results; D012189:Retrospective Studies; D012886:Skull; D014680:Veins / Q000473:pathology
chemical_list: D003287:Contrast Media; D019786:Gadolinium DTPA