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Titolo:
SAFETY OF MR-IMAGING IN PATIENTS WHO HAVE RETAINED METALLIC MATERIALSAFTER CARDIAC-SURGERY
Autore:
HARTNELL GG; SPENCE L; HUGHES LA; COHEN MC; SAOUAF R; BUFF B;
Indirizzi:
NEW ENGLAND DEACONESS HOSP,DEPT RADIOL SCI,1 DEACONESS RD BOSTON MA 02215 HARVARD UNIV,SCH MED BOSTON MA 02115 NEW ENGLAND DEACONESS HOSP,DIV CARDIOVASC BOSTON MA 02215
Titolo Testata:
American journal of roentgenology
fascicolo: 5, volume: 168, anno: 1997,
pagine: 1157 - 1159
SICI:
0361-803X(1997)168:5<1157:SOMIPW>2.0.ZU;2-T
Fonte:
ISI
Lingua:
ENG
Soggetto:
PACEMAKERS; IMPLANTS; MODEL;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
12
Recensione:
Indirizzi per estratti:
Citazione:
G.G. Hartnell et al., "SAFETY OF MR-IMAGING IN PATIENTS WHO HAVE RETAINED METALLIC MATERIALSAFTER CARDIAC-SURGERY", American journal of roentgenology, 168(5), 1997, pp. 1157-1159

Abstract

OBJECTIVE. Epicardial pacing wires retained in patients who undergo cardiac surgery are thought to be a relative contraindication to MR imaging. However, to our knowledge no published evidence supports this belief. Because other metallic materials retained after cardiac surgery might represent a hazard to patients who undergo MR imaging, we soughtto determine the safety of such imaging.SUBJECTS AND METHODS. We examined 200 patients who underwent MR imaging at 1 or 1.5 T after cardiacsurgery, Eighty-one were examined with ECG monitoring, The presence of temporary epicardial pacing wires, prosthetic valves, and other metal materials was confirmed by chest radiography. RESULTS. Of the 200 patients reviewed, all had postoperative metallic material visible on chest radiographs. Temporary epicardial pacing wire, cut short at the skin, was seen in 51 patients. Of the 81 patients examined with ECG monitoring, we found that MR imaging produced no changes from baseline ECGrhythms. None of the 200 patients reported symptoms suggesting arrhythmia or other cardiac dysfunction during MR imaging, CONCLUSION. MR imaging can be performed safely in patients who have undergone cardiac surgery and have retained metallic material, including valve replacements and temporary epicardial pacing wires cut short at the skin. MR imaging of patients with pacemakers was not evaluated, and we recommend that pacemakers remain a contraindication to MR imaging.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 02/12/20 alle ore 04:20:25