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Titolo:
PREOPERATIVE CLASSIFICATION OF ABDOMINAL AORTIC-ANEURYSMS WITH SPIRALCT - THE AXIAL SOURCE IMAGES REVISITED
Autore:
ALBRECHT T; JAGER HR; BLOMLEY MJK; LOPEZ A; HOSSAIN J; STANDFIELD N;
Indirizzi:
HAMMERSMITH HOSP,ROYAL POSTGRAD MED SCH,DEPT IMAGING,DU CANE RD LONDON W12 0NN ENGLAND HAMMERSMITH HOSP,ROYAL POSTGRAD MED SCH,DEPT SURG LONDON W12 0NN ENGLAND
Titolo Testata:
Clinical Radiology
fascicolo: 9, volume: 52, anno: 1997,
pagine: 659 - 665
SICI:
0009-9260(1997)52:9<659:PCOAAW>2.0.ZU;2-Q
Fonte:
ISI
Lingua:
ENG
Soggetto:
HELICAL CT; ANGIOGRAPHY; DONORS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
24
Recensione:
Indirizzi per estratti:
Citazione:
T. Albrecht et al., "PREOPERATIVE CLASSIFICATION OF ABDOMINAL AORTIC-ANEURYSMS WITH SPIRALCT - THE AXIAL SOURCE IMAGES REVISITED", Clinical Radiology, 52(9), 1997, pp. 659-665

Abstract

Objective: The differentiation of supra-, juxta- and high infrarenal abdominal aortic aneurysms (AAA), which is essential for good surgicalmanagement, remains problematic, This prospective study assessed the value of highly overlapping vs. contiguous axial spiral computed tomography (CT) reconstructions in the pre-operative assessment of AAA. Patients and methods: Thirty-five patients with abdominal aortic aneurysms were studied with spiral CT (10 mm collimation, pitch 1), Axial reconstructions were performed at 2 and 10 mm increments and compared withsurgical findings, Using each protocol, the aneurysms were classifiedas infra-, juxta- or suprarenal, Observers also assessed visualization of main and accessory renal artery origins and identification of other surgically relevant vascular anomalies. Results: The 2 mm protocol correctly identified 29/31 infrarenal, 3/3 juxtarenal and 1/1 suprarenal aneurysms; two infrarenal aneurysms were overestimated as suprarenal, The 10 mm protocol correctly classified 25/31 infrarenal, 3/3 juxtarenal and 1/1 suprarenal aneurysms; five infrarenal aneurysms were overestimated as juxtarenal (n = 3) or suprarenal (n = 2) and one case was equivocal, Correct classification was thus 94% using the 2 mm protocol and 83% with the 10 mm protocol (P = 0.063), All 70 main renal artery origins were visualized with the 2 mm protocol, while the 10 mm protocol missed six (P = 0.03) The 2 mm protocol identified 10 accessory renal arteries, four of which were missed by the 10 mm protocol, Both protocols demonstrated five surgically relevant venous anomalies. Conclusion: Spiral CT with highly overlapping axial reconstructions correctly classified 94% of abdominal aortic aneurysms; overlapping reconstructions were particularly useful in differentiating high infrarenal from juxtarenal aneurysms.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 21/09/20 alle ore 12:01:57