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Titolo:
Assessment of coronary artery bypass graft patency with a 2D T-2-weighted breath-hold Turbo-Spin-Echo sequence (HASTE)
Autore:
Kalden, P; Kreitner, KF; Wittlinger, T; Voigtlander, T; Krummenauer, F; Schreiber, W; Thelen, M;
Indirizzi:
Univ Mainz, Klin & Poliklin Radiol, D-55131 Mainz, Germany Univ Mainz Mainz Germany D-55131 Poliklin Radiol, D-55131 Mainz, Germany Univ Mainz, Med Klin 2, Abt Kardiol, D-55131 Mainz, Germany Univ Mainz Mainz Germany D-55131 2, Abt Kardiol, D-55131 Mainz, Germany Univ Mainz, Inst Med Stat & Dokumentat, D-55131 Mainz, Germany Univ MainzMainz Germany D-55131 at & Dokumentat, D-55131 Mainz, Germany
Titolo Testata:
ROFO-FORTSCHRITTE AUF DEM GEBIET DER RONTGENSTRAHLEN UND DER BILDGEBENDEN VERFAHREN
fascicolo: 5, volume: 170, anno: 1999,
pagine: 442 - 448
SICI:
0936-6652(199905)170:5<442:AOCABG>2.0.ZU;2-N
Fonte:
ISI
Lingua:
GER
Soggetto:
NONINVASIVE EVALUATION; ANGIOGRAPHY; COMPLICATIONS; FLOW;
Keywords:
magnetic resonance imaging; coronary angiography; turbo-spin-echo sequence; HASTE; coronary artery bypass grafts;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Citazioni:
25
Recensione:
Indirizzi per estratti:
Indirizzo: Kalden, P Univinz,nz, Klin & Poliklin Radiol, Gebaude 505,Langenbeckstr 1,D-55131 Ma Univ Mainz Gebaude 505,Langenbeckstr 1 Mainz Germany D-55131 Ma
Citazione:
P. Kalden et al., "Assessment of coronary artery bypass graft patency with a 2D T-2-weighted breath-hold Turbo-Spin-Echo sequence (HASTE)", ROFO-F RONT, 170(5), 1999, pp. 442-448

Abstract

Aim: To evaluate the patency of coronary artery bypass grafts with a 2D T-2-weighted breath-hold turbo-spin-echo sequence. Methods: 38 patients with 97 grafts (19 internal mammary artery and 78 saphenous vein grafts) and a total of 120 distal anastomoses were studied at 1.5 Tesla in supine positionusing a phased array body coil. An ECG gated 2D T-2-weighted breath-hold turbo-spin-echo sequence (HASTE) was performed. Reference method was selective coronary angiography. The image material was evaluated independently by two radiologists (observer one, a radiological fellow and the second a staff radiologist). Results: Observer 1 reached a sensitivity of 96% (72/75) and a specificity of 91 % (20/22), positive predictive value was 97%, negative predictive value 87 %. 79 of the 97 (81 %) patent distal anastomoses werecorrectly identified. Observer 2 achieved a sensitivity of 92% (69/75) anda specificity of 82% (18/22), positive and negative predictive values were95% and 75% respectively. From 97 patent distal anastomoses 59 (61%) were recognized. The interobserver agreement was good (Cohen's kappa = 68%, p-value [McNemar] = 58%). Conclusion: Using the HASTE sequence a reliable assessment of graft patency is possible. This sequence is a helpful tool for planning flow measurements and 3D MR angiography.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 02/12/20 alle ore 14:24:34