| Three-dimensional magnetic resonance angiography of vascular lesions in children. | |
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MedLine Citation:
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PMID: 11001478 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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We applied three-dimensional (3D) magnetic resonance (MR) angiography to vascular lesions in children and evaluated the clinical usefulness of this technique. Ten patients, whose ages ranged from 1 month to 16 years, underwent 3D MR angiography for 12 vascular lesions, including lesions in seven pulmonary arteries, two thoracic aortae, a pair of renal arteries, and one iliac artery. Three-dimensional MR angiography was performed with body-or pelvic-phased array coils on a 1.5-T scanner using fast spoiled gradient echo sequence. Data were acquired with the following parameters: TE, 1.9 ms; TR, 10.1 ms; flip angle, 20-60 degrees ; 1 or 2 NEX; field of view, 24-48 x 18-40 cm; matrix, 256 or 512 x 128 or 256; slice thickness, 1.2-7.5 mm; and 12, 28, or 60 partitions. Vascular imaging was enhanced with 20% gadolinium-diethylenetriaminepentaacetic acid. The examination was performed under breath-holding in six patients and with shallow breathing in four patients. In a comparative study with other noninvasive methods, 3D MR angiography was superior in seven of nine cases to other noninvasive examinations and in two cases, all methods evaluated the lesions. Furthermore, six cases were compared with conventional angiography. In five of the six cases, both methods depicted the lesions similarly, and in one case, MR angiography was more effective. A quantitative comparison of vascular diameter in the MR image was made with that in the conventional angiographic image. The correlation between them was excellent: y = 1.145x-2.090 (r = 0.987; P < 0.0001), where x is the diameter in the conventional angiographic images, y is the diameter in the MR images, and r is the correlation coefficient. In conclusion, 3D MR angiography is useful for depicting peripheral vascular lesions in children. |
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Authors:
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H Katayama; T Shimizu; Y Tanaka; I Narabayashi; H Tamai |
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Publication Detail:
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Type: Comparative Study; Journal Article |
Journal Detail:
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Title: Heart and vessels Volume: 15 ISSN: 0910-8327 ISO Abbreviation: Heart Vessels Publication Date: 2000 |
Date Detail:
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Created Date: 2001-01-17 Completed Date: 2001-01-17 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 8511258 Medline TA: Heart Vessels Country: JAPAN |
Other Details:
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Languages: eng Pagination: 1-6 Citation Subset: IM |
Affiliation:
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Department of Pediatrics, Osaka Medical College, Takatsuki, Japan. ped012@poh.osaka-med.ac.jp |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adolescent Angiography Aortography Child Dextrocardia / diagnosis Endocarditis, Bacterial / diagnosis Female Gadolinium / diagnostic use Heart Defects, Congenital / diagnosis Heart Septal Defects, Ventricular / diagnosis Humans Image Enhancement Infant Infant, Newborn Magnetic Resonance Angiography* / methods Male Models, Theoretical Mucocutaneous Lymph Node Syndrome / diagnosis Pulmonary Artery / radiography Pulmonary Atresia / diagnosis, radiography Renal Artery Obstruction / diagnosis, radiography Tetralogy of Fallot / diagnosis, surgery Vascular Diseases / diagnosis*, radiography |
| Chemical | |
Reg. No./Substance:
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7440-54-2/Gadolinium |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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